Publications

 

COGNITIVE RADIO

 

O. Simeone, Y. Bar-Ness and U. Spagnolini, “Cooperative cognitive radio,” in “Cooperative wireless communications", to be published by Auerbach Publications, CRC Press.

Commons model: stability and cooperation

M. Levorato, O. Simeone and U. Mitra, “Interference management via rate splitting and HARQ over time-varying fading channels,” in Proc. ACM CoRoNet'09, Beijing, China, Sept. 21, 2009

O. Simeone, Y. Bar-Ness and U. Spagnolini, “Stable throughput of cognitive radios with and without relaying capability,” IEEE Trans. Commun., vol. 55, no. 12, pp. 2351-2360, Dec. 2007.

 

J. Gambini, O. Simeone, Y. Bar-Ness and U. Spagnolini, "Packet-wise vertical handover for unlicensed multi-standard spectrum access with cognitive radios", IEEE Trans. Wireless Commun., vol. 7, no. 12, pp. 5172-5176, Dec. 2008.

 

J. Gambini, O. Simeone and U. Spagnolini, “Cognitive relaying and opportunistic spectrum sensing in unlicensed multiple access channels,” in Proc. IEEE ISSSTA 2008, Aug. 25-28, 2008, Bologna, Italy.

 

J. Gambini, O. Simeone, Y. Bar-Ness and U. Spagnolini, “Stability analysis of a cognitive multiple access channel with primary QoS constraints,” in Proc. Asilomar Conference on Signals, Systems and Computers, 2007.

 

J. Gambini, O. Simeone, U. Spagnolini, Y. Bar-Ness and Y. Kim,  Cognitive radio with secondary packet-by-packet vertical handover,” in Proc. IEEE ICC 2008.

 

O. Simeone, Y. Bar-Ness and U. Spagnolini, “Stable throughput of cognitive radios with relaying capability," in Proc. Forty-Fourth Annual Allerton Conference on Communication, Control, and Computing, 2006.

 

O. Simeone, J. Gambini, U. Spagnolini and Y. Bar-Ness, “Cooperation and cognitive radio,” in Proc. IEEE CogNet Workshop, 2007.

O. Simeone, Y. Bar-Ness and U. Spagnolini,Stability analysis of the cognitive interference channel,” in Proc. Asilomar Conference on Signals, Systems and Computers, 2006.

J. Gambini, O. Simeone, U. Spagnolini and Y. Bar-Ness, “Cooperative cognitive radios with optimal primary detection and packet acceptance control,” in Proc. IEEE SPAWC 2007.

 

J. Gambini, O. Simeone and U. Spagnolini, “Cognitive relaying and opportunistic spectrum sensing in unlicensed multiple access channels,” in Proc. ISSSTA 2008, Aug. 25-28, 2008, Bologna, Italy.

 

 

Property-rights model

 

M. Levorato, O. Simeone, U. Mitra and M. Zorzi, “Cooperation and coordination in cognitive networks with packet retransmission,” in Proc. IEEE Information Theory Workshop (ITW 2009), Taormina, Italy, Oct. 11-16, 2009.

 

 I. Stanojev, O. Simeone, U. Spagnolini, R. Pickholtz and Y. Bar-Ness, “An auction-based incentive mechanism for non-altruistic cooperative ARQ via spectrum-leasing,” in Proc. IEEE GLOBECOM 2009, Honolulu, Hawaii, USA, Nov. 30-Dec. 4, 2009.

 

O. Simeone, I. Stanojev, S. Savazzi, Y. Bar-Ness, U. Spagnolini, R. Pickholtz, “Spectrum leasing to cooperating ad hoc secondary networks,” IEEE Journ. Selected Areas Commun., vol. 26, no. 1, pp. 203-213, Jan. 2008.

 

I. Stanojev, O. Simeone and Y. Bar-Ness, “Spectrum leasing via distributed cooperation in cognitive radio,” in Proc. IEEE ICC 2008.

 

 

Sensing and detection

 

T. Betran, O. Simeone and Y. Bar-Ness, “Detecting Primary Transmitters via Cooperation and Memory in Cognitive Radio," in Proc. CISS 2007.

 

O. Somekh, O. Simeone, Y. Bar-Ness and Wei Su, “'Detecting the number of transmit antennas with unauthorized or cognitive receivers in MIMO systems,” in Proc. IEEE MILCOM 2007.

 

 


COOPERATIVE COMMUNICATIONS

Infrastructure networks

O. Simeone, O. Somekh, E. Erkip and S. Shamai (Shitz), “Robust communication against femtocell access failures,” in Proc. IEEE Information Theory Workshop (ITW 2009), Taormina, Italy, Oct. 11-16, 2009.

 

O. Somekh, O. Simeone, H.V. Poor and S. Shamai (Shitz), “Throughput of cellular uplink with dynamic user activity and cooperative base-stations,” in Proc. IEEE Information Theory Workshop (ITW 2009), Taormina, Italy, Oct. 11-16, 2009.

O. Somekh, O. Simeone, Y. Bar-Ness, A. Haimovich, U. Spagnolini and S. Shamai, “An information theoretic view of distributed antenna processing in cellular systems,” in “Distributed Antenna Systems: Open Architecture for Future Wireless Communications," Auerbach Publications, CRC Press [pre-print]

O. Simeone, O. Somekh, Y. Bar-Ness and U. Spagnolini, “Uplink throughput of TDMA cellular systems with multicell processing and Amplify-and-Forward cooperation between mobiles,” IEEE Trans. Wireless Commun, vol. 6, no. 8, pp. 2942-2951, Aug. 2007.

O. Somekh, O. Simeone, Y. Bar-Ness, A. M. Haimovich, S. Shamai (Shitz), “Cooperative multi-cell zero-forcing beamforming in cellular downlink", IEEE Trans. Inform. Theory, vol. 55, no. 7,  pp. 3206-3219, July 2009.

O. Simeone, O. Somekh, Y. Bar-Ness and U. Spagnolini, “Throughput of low-power TDMA cellular systems with collaborative decoding at the base stations and cooperative transmission between mobiles”, IEEE Trans. Inform. Theory, vol. 54, no. 1, pp. 459-467, Jan. 2008.

O. Simeone, O. Somekh. H. V. Poor and S. Shamai (Shitz), “Local base station cooperation via finite-capacity links for the uplink of wireless networks", IEEE Trans. Inform. Theory, vol. 55, no. 1, pp. 190-204, Jan. 2009.

 

O. Simeone, O. Somekh, G. Kramer, H. V. Poor and S. Shamai (Shitz), "Throughput of cellular systems with conferencing mobiles and cooperative base-stations," Eurasip Journal on Wireless Communications and Networking, vol. 2008, Article ID 652325, 14 pages, 2008. doi:10.1155/2008/652325. (special issue on "Multi-user/ Multi-terminal communications")

 

O. Simeone, O. Somekh, H. V. Poor and S. Shamai (Shitz), "Downlink multicell processing with limited backhaul capacity," EURASIP Journal on Advances in Signal Processing, special issue on "Multiuser MIMO Transmission with Limited Feedback, Cooperation, and Coordination".

 

O. Simeone, O. Somekh, H. V. Poor, and S. Shamai (Shitz), “Distributed MIMO systems with oblivious antennas,” in Proc. IEEE International Symposium Inform. Theory (ISIT 2008), Toronto, Canada, July 6-11, 2008

 

O. Somekh, O. Simeone, H. V. Poor, and S. Shamai (Shitz), “Cellular Systems with Full-Duplex Compress-and-Forward Relaying and Cooperative Base-Stations,” in Proc. IEEE International Symposium Inform. Theory (ISIT 2008), Toronto, Canada, July 6-11, 2008.

 

O. Simeone, O. Somekh, G. Kramer, H. V. Poor, S. Shamai (Shitz), “Uplink sum-rate analysis of a multicell system with feedback,” in Proc. Allerton Conference on Communication, Control, and Computing, Monticello, IL, Sept. 23 - 26, 2008.

 

O. Somekh, O. Simeone, H. V. Poor, S. Shamai (Shitz), “The two-tap input-erasure Gaussian channel and its application to cellular communications,” in Proc. Allerton Conference on Communication, Control, and Computing, Monticello, IL, Sept. 23 - 26, 2008 (invited paper).

 

O. Simeone, O. Somekh, H. V. Poor, and S. Shamai (Shitz), “Enhancing uplink throughput via local base station cooperation”, in Proc. Asilomar Conference on Signals, Systems and Computers, Oct. 26-29, 2008 (invited paper).

 

O. Somekh, O. Simeone, V. Poor and S. Shamai, “Cellular systems with full-duplex Amplify-and-Forward relaying and cooperative base stations,” in Proc. IEEE ISIT 2007.

O. Simeone and U. Spagnolini, “Capacity of wireless ad hoc networks using opportunistic collaborative communications,” Eurasip Journal on Wireless Commun. and Networking, vol. 2007, Article ID 53075, 7 pages, 2007.

 

O. Simeone, O. Somekh, Y. Bar-Ness, H. V. Poor and S. Shamai, “Capacity of linear two-hop mesh networks with rate splitting, decode-and-forward relaying and cooperation,” in Proc. Forty-Fifth Annual Allerton Conference on Communication, Control, and Computing, 2007.

 

S. Shamai, O. Somekh, O. Simeone, A. Sanderovich, B.M. Zaidel and H. V. Poor, “Cooperative multi-cell networks: impact of limited-capacity backhaul and inter-users links,” in Proc. Joint Workshop on Coding and Communications, Dürnstein, Austria, October 14 - 16, 2007. 

 

O. Somekh, O. Simeone, B. M. Zaidel, H. V. Poor, and S. Shamai (Shitz) “On the spectrum of large random Hermitian finite-band matrices,” in Proc. Information Theory and Applications Workshop, Jan. 27- Feb. 1, San Diego, CA, 2008.

 

O. Somekh, O. Simeone, A. Sanderovich, B. M. Zaidel, H. V. Poor, and S. Shamai (Shitz) “On the Impact of Limited-Capacity Backhaul and Inter-Users Links in Cooperative Multicell Networks,” in Proc. CISS, 2008 (invited paper).

 

S. Shamai (Shitz), O. Simeone, O. Somekh, and H. V. Poor, "Joint multi-cell processing for downlink with limited-capacity backhaul," in Proc. Information Theory and Applications Workshop, Jan. 27- Feb. 1, San Diego, CA, 2008.

O. Simeone, O. Somekh, G. Kramer, S. Shamai (Shitz) and H. V. Poor, "Cellular systems with multicell processing and conferencing links between mobile stations," in Proc. Information Theory and Applications Workshop, Jan. 27- Feb. 1, San Diego, CA, 2008.

O. Simeone, O. Somekh, H. V. Poor and S. Shamai (Shitz), “Distributed MIMO in multi-cell wireless systems via finite-capacity links,” in Proc. IEEE 3rd International Symposium on Communications, Control and Signal Processing (ISCCSP 2008), March 12–14, 2008.

 

S. Shamai (Shitz), O. Simeone, O. Somekh, A. Sanderovich, B. M. Zaidel, and H. V. Poor “Information-Theoretic Implications of Constrained Cooperation in Simple Cellular Models,” in Proc. IEEE PIMRC 2008, Cannes, France, Sept. 15-18, 2008.

 

O. Simeone, O. Somekh, Y. Bar-Ness and U. Spagnolini, “Low-SNR analysis of cellular systems with cooperative base stations and mobiles,” in Proc. Asilomar Conference on Signals, Systems and Computers, 2006.

 

O. Simeone, O. Somekh, Y. Bar-Ness and U. Spagnolini, “Throughput of low power cellular systems with collaboration at base stations and mobiles”, MSRI Workshop on Mathematics of Relaying and Cooperation in Communication Networks, 2006. (pictures!)

 

O. Simeone, O. Somekh, Y. Bar-Ness and U. Spagnolini “Information theoretic analysis of multicell decoding and Amplify-and-Forward cooperation between mobiles for TDMA cellular systems”, in Proc. Conference on Information Sciences and Systems, 2006.

 

 

Ad hoc networks and relay channel

 

O. Simeone, D. Gündüz and S. Shamai (Shitz), “Compound relay channel with informed relay and destination,” in Proc. Forty-Seventh Annual Allerton Conference on Communication, Control, and Computing, Monticello, IL, Sept. 30 – Oct. 2, 2009.

 

O. Simeone, O. Somekh, H. V. Poor, and S. Shamai (Shitz), “Distributed MIMO systems for nomadic applications over a symmetric interference channel,” to appear in IEEE Trans. Inform. Theory.

 

O. Sahin, O. Simeone and E. Erkip, “Interference channel aided by an infrastructure relay,” in Proc. IEEE International Symposium on Information Theory (ISIT 2009), Seoul, Korea, June - July 3, 2009.

 

D. Gündüz, O. Simeone, H. V. Poor, A. J. Goldsmith and S. Shamai (Shitz), “Relaying simultaneous multicasts via structured codes,” in Proc. IEEE International Symposium on Information Theory (ISIT 2009), Seoul, Korea, June - July 3, 2009.

 

F. Iannello and O. Simeone, “On the throughput region of single and two-way multi-hop fading networks with relay piggybacking,” in Proc. IEEE International Workshop on Signal Processing Advances for Wireless Communications, Perugia, Italy, June 21- 24, 2009.

 

O. Simeone, D. Gündüz, H. V. Poor, A. J. Goldsmith, S. Shamai (Shitz), “Compound multiple access channels with partial cooperation", IEEE Trans. Inform. Theory, vol. 55,  no. 6, pp. 2425-2441, June 2009. 

 

O. Sahin, E. Erkip and O. Simeone, Interference channel with a relay: Models, relaying strategies, bounds,” in Proc. Information Theory and Applications (ITA) Workshop, La Jolla, CA, Feb. 8 - 13, 2009.

 

O. Simeone, O. Somekh, E. Erkip, S. Shamai (Shitz), H. V. Poor A broadcast approach to robust communications over unreliable multi-relay networks,” in Proc. Information Theory and Applications (ITA) Workshop, La Jolla, CA, Feb. 8 - 13, 2009.

 

D. Gündüz, O. Simeone, H. V. Poor, A. J. Goldsmith and S. Shamai (Shitz), “Relaying simultaneous multicast messages,” in Proc. IEEE Information Theory Workshop on Networking and Information Theory (ITW 2009), Volos, Greece, June 10-12. 2009.

 

O. Simeone, O. Somekh, E. Erkip, S. Shamai (Shitz), H. V. Poor, Multi-relay channel with non-ergodic link failures,” in Proc. IEEE Information Theory Workshop on Networking and Information Theory (ITW 2009), Volos, Greece, June 10-12. 2009.

I. Stanojev, O. Simeone, Y. Bar-Ness and Cheolwoo You, Performance of Multi-Relay Collaborative Hybrid-ARQ Protocols over Fading Channels”, IEEE Comm. Letters, July 2006.

F. Iannello and O. Simeone, Throughput Analysis of Type-I HARQ Strategies in Two-Way Relay Channels,” in Proc. Conference on Information Sciences and Systems (CISS), Baltimore, MA, Mar. 18-20, 2009.

 

T. ElKourdi and O. Simeone, Impact of Secondary MAC Cooperation on Spectrum Sharing in Cognitive Radio Networks,” in Proc. Conference on Information Sciences and Systems (CISS), Baltimore, MA, Mar. 18-20, 2009.

 

I. Stanojev, O. Simeone, Y. Bar-Ness and T. Yu, "Energy Efficiency of Non-Collaborative and Collaborative Hybrid-ARQ Protocols", IEEE Trans. Wireless Commun., vol. 8, no. 1, pp. 326-335,  Jan. 2009.

 

O. Simeone, D. Gündüz, A. Goldsmith, S. Shamai (Shitz), H. V. Poor Compound multiple access channels with conferencing decoders," in Proc. Allerton Conference on Communication, Control, and Computing, Monticello, IL, Sept. 23 - 26, 2008.

 

I. Stanojev, O. Simeone and Y. Bar-Ness, “On the optimal number of hops in linear wireless ad hoc networks with hybrid ARQ,” in Proc. 6th Intl. Symposium on modeling and optimization in mobile, ad hoc and wireless networks (WiOpt’08),  2008.

 

O. Simeone, O. Somekh, G. Kramer, H. V. Poor and S. Shamai (Shitz), ”Three-user Gaussian multiple access channel with partially cooperating encoders,” in Proc. Asilomar Conference on Signals, Systems and Computers, Oct. 26-29, 2008 (invited paper).

 

Bo Niu, O. Simeone, O. Somekh, A. Haimovich, “Throughput of Two-Hop Wireless Networks with Relay Cooperation,” in Proc. Forty-Fifth Annual Allerton Conference on Communication, Control, and Computing, 2007.

 

I. Stanojev, O. Simeone and Y. Bar-Ness, “'On the Energy Efficiency of Hybrid-ARQ Protocols,” in Proc. IEEE ICC 2007.


A. del Coso, O. Simeone, Y. Bar-Ness and C. Ibars, “Space-Time Coded Cooperative Multicasting with Maximal Ratio Combining and Incremental Redundancy,” in Proc. IEEE ICC 2007.

 

A. del Coso, O. Simeone, Y. Bar-Ness and C. Ibars, “Outage Capacity of Two-Phase Space-Time Coded Cooperative Multicasting,” in Proc. Asilomar Conference on Signals, Systems and Computers, 2006.

 

N. Varanese, O. Simeone, Y. Bar-Ness and U. Spagnolini “Achievable rates of multi-hop and cooperative MIMO Amplify-and-Forward relay systems with full CSI, in Proc. IEEE Signal Processing Advances on Wireless Communications, 2006.


I. Stanojev, O. Simeone and Y. Bar-Ness, Performance Analysis of Collaborative Hybrid-ARQ Incremental Redundancy Protocols over Fading Channels, in Proc. IEEE Signal Processing Advances on Wireless Communications, 2006.

N. Varanese, O. Simeone, Y. Bar-Ness and U. Spagnolini, “A power allocation strategy for multi-antenna amplify-and-forward fading relay channels”, in Proc. Conference on Information Sciences and Systems, 2006.

 

 I. Stanojev, O. Simeone and Y. Bar-Ness, “Performance analysis of collaborative H-ARQ over fading channels”, in Proc. IEEE Sarnoff Symposium, 2006.

 

O. Simeone and U. Spagnolini, “Capacity region of wireless ad hoc networks using opportunistic collaborative communications”, in Proc. IEEE International Conference on Communications, 2006.

 

Joint source-channel coding

 

O. Simeone, “Exploiting partial cooperation for source and channel coding in sensor networks,” in Proc. IEEE Global Communications Conference (IEEE GLOBECOM 2008), New Orleans, LA, Nov. 30 – Dec. 4, 2008.

 

O. Simeone, “Source and channel coding for homogeneous sensor networks with partial cooperation", to appear in IEEE Trans. Wireless Commun.

 

 


Secure communications for wireless systems

[J.26] P. Popovski and O. Simeone, “Wireless secrecy in cellular systems with infrastructure-aided cooperation", IEEE Trans. on Information Forensics and Security, vol. 4,  no. 2, pp. 242-256,  June 2009.

 

O. Simeone and P. Popovski, “Secure communications via cooperative base stations,” IEEE Commun. Letters, vol. 12, no. 3, pp. 188-190, March 2008.

 

P. Popovski and O. Simeone, “Wireless secrecy with infrastructure-aided cooperation,” in Proc. Information Theory Workshop, May 5-9, Porto, Portugal, 2008.

 

O. Simeone and A. Yener, The cognitive multiple access wire-tap channel,” in Proc. Conference on Information Sciences and Systems (CISS), Baltimore, MA, Mar. 18-20, 2009.

 


Performance analysis of WiMAX systems

M. Nicoli, S. Savazzi O. Simeone, R. Bosisio, G. Primolevo, L. Sampietro, C. Santacesaria, “Deployment and design of multi-antenna WiMax systems in a non-stationary interference environment,” in “Current Technology Developments of WiMax Systems”, to be published by Springer.

 

M. Nicoli, M. Sala, O. Simeone, L. Sampietro and C. Santacesaria, “Adaptive array processing for time-varying interference mitigation in IEEE 802.16 systems,” in Proc. IEEE International Symposium on Personal Indoor and Mobile Radio Communications, 2006.

 

M. Cremaschi, O. Simeone and U. Spagnolini, “Distributed timing synchronization for sensor networks with coupled discrete-time oscillators”, in Proc. International Workshop on Wireless Ad Hoc and Sensor Networks 2006.

 

M. Nicoli, L. Sampietro, C. Santacesaria, S. Savazzi,  O. Simeone and Umberto Spagnolini, “'Throughput optimization for non-uniform linear antenna arrays in multicell WiMAX systems”, in Proc. International ITG - IEEE Workshop on Smart Antennas, 2006.


Distributed synchronization

O. Simeone, U. Spagnolini, Y. Bar-Ness and S. H. Strogatz, “Distributed synchronization in wireless networks,” IEEE Signal Processing Magazine, vol. 25, no. 5, pp. 81-97, Sept. 2008.

 

O. Simeone and U. Spagnolini and Y. Bar-Ness,”Small-world” effect of shadowing on pulse-couple distributed discrete-time phase locked loops,” IEEE Commun. Letters, vol. 11, no. 3, March 2007.  


O. Simeone and U. Spagnolini, “Distributed synchronization for wireless sensor networks with couple discrete-time oscillators,” Eurasip Journal on Wireless Commun. and Networking (invited), special issue on “Novel Techniques for Analysis & Design of Cross-Layer Optimized Wireless Sensor Networks”, vol. 2007, Article ID 57054, 13 pages, 2007.

 

O. Simeone, U. Spagnolini and Y. Bar-Ness, “On pulse-coupled discrete-time phase locked loops for wireless networks,” in Proc. IEEE SPAWC 2007 (BEST PAPER AWARD).

 

O. Simeone, U. Spagnolini, G. Scutari and Y. Bar-Ness, “Physical-layer distributed synchronization in wireless networks and applications,” in Physical Communication, pp. 67-83, March 2008.

 

U. Spagnolini, N. Varanese, O. Simeone and Y. Bar-Ness, “Distributed Digital Looked Loops for time/frequency locking in packet-based wireless communication,” in Proc. IEEE PIMRC 2008, Cannes, France, Sept. 15-18, 2008 (invited paper).

 

N. Varanese, O. Simeone, Y. Bar-Ness and U. Spagnolini, “Distributed Frequency-Locked Loops for wireless networks,” in Proc. IEEE ISSSTA 2008, Aug. 25-28, 2008, Bologna, Italy.

 

M. Cremaschi, O. Simeone and U. Spagnolini, “Distributed timing synchronization for sensor networks with coupled discrete-time oscillators”, in Proc. International Workshop on Wireless Ad Hoc and Sensor Networks 2006.

 

O. Simeone, U. Spagnolini and Y. Bar-Ness, “A resilient synchronization algorithm for wireless ad hoc and sensor networks based on distributed discrete-time PLLs,” in Proc. IEEE WRECOM 2007 (BEST PAPER AWARD).

 

O. Simeone and G. Scutari, “Pulse-coupled distributed PLLs in heterogeneous wireless networks,” in Proc. Asilomar Conference on Signals, Systems and Computers, 2007.

 


Applications of game theory to wireless communications

I. Stanojev, O. Simeone and Y. Bar-Ness, “'Optimal design of a multi-antenna access point with decentralized power control using game theory,” in Proc. IEEE DySPAN 2007.

 

O. Simeone and Y. Bar-Ness “Game-theoretic view on the interference channel with random access," in Proc. IEEE DySPAN 2007.

 


Channel acquisition for multiantenna systems

O. Simeone and U. Spagnolini, “Estimation of block-fading channels with reduced-rank correlation matrix," in Proc. CISS 2007.

M. Cicerone, O. Simeone and U. Spagnolini, Channel estimation for MIMO-OFDM systems by modal analysis/filtering”, IEEE Trans. Communications, vol. 54, no. 11, pp. 2062-2074, Nov. 2006.

O. Simeone and U. Spagnolini, “Lower bound on training-based channel estimation error for frequency-selective block-fading Rayleigh MIMO channels”, IEEE Trans. on Signal Processing, vol. 52, no. 11, pp. 3265-3277, Nov. 2004.  

O. Simeone, Y. Bar-Ness and U. Spagnolini, “Pilot-based channel estimation for OFDM systems by tracking the delay subspace”, IEEE Trans. Wireless Commun., vol. 3, no. 1, pp. 315-325, Jan. 2004.

M. Nicoli, O. Simeone and U. Spagnolini, “Multi-slot estimation of fast-varying frequency-selective channels”, IEEE Trans. on Communications, vol. 51, no. 8, pp. 1337-1347, Aug. 2003.


M. Nicoli, O. Simeone, and U. Spagnolini, “Multi-slot estimation of fast-varying space-time communication channels”, IEEE Trans. Signal Processing, vol. 51, no. 5, pp. 1184-1195, May 2003.


M. Nicoli, O. Simeone, and U. Spagnolini, “Multi-slot estimation of fast-varying space-time channels in TD-CDMA systems”, IEEE Comm. Letters, vol. 6, no. 9, pp. 376-378, Sept. 2002.

 

O. Simeone, U. Spagnolini, “Adaptive pilot pattern for OFDM systems”, IEEE International Conference on Communications, June 20-24, Paris, 2004.


O. Simeone, U. Spagnolini, “Channel estimation for block-fading frequency-selective Rayleigh MIMO channels: performance limits”, IEEE Vehicular Technology Conference, May 17-19, Milan, 2004.


M. Cicerone , O. Simeone, N. Geng , U. Spagnolini, “Modal analysis/filtering to estimate time-varying MIMO-OFDM channels,” ITG Workshop on Smart Antennas (WSA), March 18-19, Munich, 2004.

 

O. Simeone, U. Spagnolini, “Lower bound on the channel estimation MSE for fast-varying block-fading Rayleigh MIMO channels,” COST 273 7th Meeting of the Management Committee, Document TD(03)084, 8 pages, Paris, May 22-23, 2003.


O. Simeone, M. Nicoli, U. Spagnolini, “Subspace tracking for uplink/downlink array processing in CDMA systems”,  IEEE Telecommunications Conference (GLOBECOM 2003), vol. 2, pp. 824-828, san Francisco, Dec. 1-5, 2003.


M. Nicoli, O. Simeone, U. Spagnolini, “Multi-slot estimation of fast-varying space-time communication channels”, COST 273 6th Meeting of the Management Committee, Document number TD(03)042, 12 pages, Barcelona, 15-17 Jan. 2003.

O. Simeone, U. Spagnolini, “Lower bounds on the channel estimation error for fast-varying frequency-selective Rayleigh MIMO channels”, IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP '03), vol. 5, pp. 69-72, April 6-10, 2003.

O. Simeone, Y. Bar-Ness, U. Spagnolini, “Subspace based methods for channel estimation in OFDM systems”, European Conference on Wireless Technology (ECWT 2002), Milan, September 26-27, 2002.


M. Aldrovrandi, M. Nicoli, O. Simeone, U. Spagnolini, “Subspace tracking methods for channel estimation in TD-SCDMA systems”, European Conference on Wireless Technology (ECWT 2002), Milan, September 26-27, 2002.


M. Nicoli, O. Simeone, and U. Spagnolini, “A multi-slot method to estimate the fast-varying channels in TD-CDMA systems”, XI European Signal Processing Conference (EUSIPCO 2002), Toulouse, September 3-6, 2002.


O. Simeone and U. Spagnolini, “Multi-slot estimation of space-time channels”, IEEE International Conference on Communications (ICC 2002), New York City, April 28-May 2, 2002.


Scheduling and precoding for multiantenna wireless systems

O. Simeone, Y. Bar-Ness and U. Spagnolini, “Linear and non-linear precoding/decoding for MIMO systems with long-term channel state information at the transmitter”, IEEE Trans. on Wireless Communications, vol. 3, no. 2, pp. 373-378, March 2004.

O. Simeone, U. Spagnolini, “Combined linear pre-equalization and BLAST equalization with channel correlation feedback”, IEEE Communications Letters, vol. 7, no. 10, pp. 487-489, Oct. 2003.

J. Diaz, O. Simeone and Y. Bar-Ness, “Asymptotic Analysis of Reduced-Feedback Strategies for MIMO Gaussian Broadcast Channels”, IEEE Trans. Inform. Theory, vol. 54, no. 3, pp. 1308-1316, March 2008.

O. Somekh, O. Simeone, Y. Bar-Ness, A. M. Haimovich, S. Shamai (Shitz), “Cooperative multi-cell zero-forcing beamforming in cellular downlink", IEEE Trans. Inform. Theory, vol. 55, no. 7,  pp. 3206-3219, July 2009.

 

S. Savazzi, O. Simeone and U. Spagnolini,Optimal design of non-uniform linear arrays in cellular systems with Gaussian interference,” EURASIP Journal on Wireless Communications and Networking, vol. 2007, Article ID 93421, 9 pages, 2007. doi:10.1155/2007/93421

 

Bo Niu, O. Simeone, O. Somekh and A. Haimovich,On the Sum-Rate of Broadcast Channels with Outdated 1-Bit Feedback,” in Proc. Asilomar Conference on Signals, Systems and Computers, 2006.

 

O. Somekh, O. Simeone, Y. Bar-Ness and A. Haimovich, “Distributed multi-cell zero-forcing beamforming in cellular downlink channels,” in Proc. IEEE Globecom 2006. 

 

S. Yoon, O. Somekh, O. Simeone and Y. Bar-Ness, “A comparison of opportunistic transmission schemes with reduced channel information feedback in OFDMA downlink,” in Proc. PIMRC 2007.

 

G. Primolevo, O. Simeone and U. Spagnolini, “Towards a joint optimization of scheduling and beamforming in MIMO downlink”, in Proc. IEEE International Symposium on Spread Spectrum Techniques and Applications, 2006 (invited paper).

 

J. Diaz, O. Simeone and Y. Bar-Ness, “How many bits of feedback is multiuser diversity worth in MIMO downlink?”, in Proc. IEEE International Symposium on Spread Spectrum Techniques and Applications, 2006 (invited paper).

J. Diaz, O. Simeone and Y. Bar-Ness,"Sumrate of MIMO broadcast channels with one bit feedback ," in Proc. IEEE International Symposium on Information Theory, 2006.

J.Diaz, O. Simeone, O. Somekh and Y. Bar-Ness, “Scaling law of the sum-rate for multiantenna broadcast channels with deterministic or selective binary feedback”, in Proc. IEEE Information Theory Workshop, pp. 298-301, 2006. ()

 

R. Bosisio, G. Primolevo, O. Simeone and U. Spagnolini, “Fair scheduling and orthogonal linear precoding/decoding in broadcast MIMO systems”, in Proc. 16th IEEE International Symposium on Personal Indoor and Mobile Radio Communications, Sept. 2005 (invited paper).  

 

O. Somekh, O. Simeone, A. Haimovich and Y. Bar-Ness, "Sum-Rate Analysis of General OFDM Downlink Channels with 1-bit Feedback per Sub-Carrier”. in Proc. Conference on Information Sciences and Systems, 2006.

 

S. Savazzi, O. Simeone, U. Spagnolini, “Optimal design of linear arrays in a TDMA cellular system with Gaussian interference”, in Proc. IEEE Signal Processing Advances on wireless communications, June 5-8, New York City, 2005.


G. Primolevo, O. Simeone, U. Spagnolini, “Channel aware scheduling for broadcast MIMO systems with orthogonal linear precoding and fairness constraints”, IEEE International Conference on Communications, May 17-20, Korea, 2005.


G. Primolevo, O. Simeone, U. Spagnolini, “Effects of imperfect channel state information on the capacity of broadcast OSDMA-MIMO systems”, in Proc. IEEE Signal Processing Advances on wireless communications, July 11-14, Lisbon, 2004.

 

O. Simeone, U. Spagnolini, Y. Bar-Ness, “Linear and non-linear precoding/decoding for MIMO systems using the fading correlation at the transmitter”, IEEE Signal Processing Advances on Wireless Communications (IEEE SPAWC 2003), Rome, June 15-18, 2003.

 


Radio propagation

A. Bosisio and O. Simeone, “Comparison between radiative transfer and ray tracing for indoor propagation,” in Proc. IEEE ICEAA '07.