E Roberto Rojas-Cessa

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Research


Opportunities
Prospective and highly self-motivated students interested in pursuing research, send me an email. Include you resume (with GPA, GRE scores, and list of publications) in your email. Indicate the program in which you are interested. We accept Ph.D., M.S., and undergraduate students. It is suggested to contact at least 6 months in advance to the preferred start of program (Program starts twice a year: January and September).
Free Space Optical Communications
Optical signals is a form of wireless signal that may be directional and therefore, be able to control the direction of propagation. More importantly, the high frequency of light is able to carry large amounts of information. We are researching new methods for communications using laser light and more. Mobile communications pose special challenges, such as diverse mobility and geographical positioning of stations, range, power, and handovers.
Blockchain Systems
Blockchain is distributed and replica-based system used to record data that has historical importance. Therefore, the main goal is to make data immutable against threats of collusion. The system is based on a network of nodes that participate in a consensus process so that recorded data cannot be changed by a lone or small group of participants. This method was made popular by the Bitcoin system and is currently used by many applications that require such property on data. In this project we look into the requirements set by the application in hand as those might greatly differ from those used in Bitcoin.
Digital Power Grid
The Digital Grid (DG) is a fusion of communications as in computer networks and the power grid that distributes energy (power delivery in a given time) in the form of packets. These packets carry a discrete amount of energy so that delivery is finely managed. With such a control of energy on its delivery, requesting energy ahead of time is needed and a request-grant protocol (similar to that used by in the Internet browser. Although imagining energy packets is difficult, the concept of them helps us to provide boundaries on the amounts of energy delivered to loads and reliable routing of energy to the region of the grid that demand it. Energy packets share some of the features of Internet datagrams; they carry a header to enable grid nodes the handling of that energy. An energy packet carries information about the load that receives it, such as an address, enabling then energy ownership. In this way, the load that is to receive the energy packet is well defined. In a digital grid, every component of the grid is a communicative device to which information and energy can be addressed. Therefore, a digital grid is a natural environment of Internet of Things. In the current phase of this project, we aim at finding out how to discretize energy so that building a digital grid is feasible and how to use most of its properties to enhance and improve the properties of the power grid. At this time, we have built a series of testbeds and they are being used as proof-of-concept. These testbeds are available to interested peers.
High Performance Packet Switches
Routers are the systems that interconnect networks. The performance of a network then depends on the performance of routers. The forwarding of packets in a router involves several processing, where the most common are destination lookup and switching of packets. These two tasks must be executed at run time. Our research is aimed to seek packet forwarding strategies that treat packets and connections fairly, and that provide high speed forwarding such that packets traverse networks fast.
Network Measurement
The performance of networks is determined by several parameters. We are developing different measurement methodologies to evaluate network performance and to learn more about how networks behave under different traffic patterns. We consider the evolution of network technologies and identify the challenges that measurement has as data rates increase.
QoS Networks, Network Reliability
Applications with high demands of network parameters are often identified as application with quality-of-service (QoS) demands. In this this field, we have the objective to develop different schemes for scheduling of packet and routing schemes to provision resources so that networks can provide QoS guarantees. A project in this area was partially supported by National Science Foundation.
Distributed Systems
Most processes in packet networks have a distributed nature. Examples are routing algorithms, architecture of high performance routers, networking computing, and others. In this topic, we investigate several aspects of control and packet management in networks, such as the Internet, and we focus in specific in peer to peer communications, forwarding of packet at high speeds, and wireless networks, as examples.
Current Students and Visitors
Vishnu Komanduri, Ph.D. Student.

Jorge A. Chirinos, Ph.D. Candidate

Pragya Bharti (MS. Program)

Semi Ege Ersoy (UG Program)

Adrien Durasno (UG Program)

Alumni
Paa Kwesi Esubonteng,Ph.D., Free-Space Optical Communications

Sina F. Kazerooni, Ph.D., Machine Learning and Security

Zhengqi Jiang, Ph.D., Digital Power Grid,

Geovanny Palomino Roldan, Ph.D. Visitor, Biomedical Virtual Reality, Research and Advanced Studies Center (CINVESTAV-IPN)

Yagiz Kaymak, Ph.D., Free-Space Optical Communications for High-Mobility Vehicles, GSK.

Khondaker M. Salehin, Ph.D., Network Measurement (Hashimoto Fellow, ECE Outstanding Graduate Student 2013, NJ Inventors Hall of Fame - Graduate Student Award). Assistant Professor at Illinois State University.

Komlan Egoh, Ph.D., Wireless Networks (Hashimoto Fellow, NJ Inventors Hall of Fame - Graduate Student Award), Avlino Inc.

Lin Cai, Ph.D., Distributed Systems (Hashimoto Fellow).

Zhen Qin, Ph.D., Mechanisms for Quality-of-Service Provisioning in Networks with Nested Differentiated Services (Cisco).

Ziqian Dong, Ph.D., Architecture Design and Performance Analysis of Practical Buffered-Crossbar Packet Switches, (Hashimoto Fellow, Hashimoto Prize 2008, NJ Inventors Hall of Fame - Graduate Student Award), Associate Professor at NYIT (NY).

Chuan-Bi Lin, Ph.D., Design and Analysis of Scalable Scheduling Schemes for Input-Queued Packet Switches (Phonetel Fellow, NJ Inventors Hall of Fame - Graduate Student Award), Assistant Professor (Taiwan), Assistant Professor at Chaoyang Univ. of Technology (Taiwan).

Zhen Guo, Ph.D., Design and Stability Analysis of High Performance Packet Switches.

Ravinder Kumar, M.S. Project.

Nicolo Macaluso M.S. Project, Visitor, Politecnico di Torino

Priyankaben Patel (M.S. Project), Networking, Verizon Communications.

Vrushant Choksi (M.S. Project), Networking, NJIT Com

Murali Gunti, M.S. Thesis, Name Data Networking, 2023.

Vinaykrishna Gopalakrishna, (M.S thesis), Networking, S2017. NetScout (CA).

Amit Balerhao, (M.S. Thesis), Networking, S2017, Cisco Systems (CA).

Jingya Liu (M.S. Visitor, 2016), now Ph.D. student at City College of New York (CCNY).

Sina F. Kazerooni (M.S. Thesis), Free-Space Optical Communications

Vinitmadhukar Sahasrabudhe (M.S. Thesis), Controlled Delivery Power Grid

Yifei Xu, Smart Grid (M.S. Program)

Tuhina Sarkar, (M.S. Program), Phone Interface for Wireless Applications

Khondaker M. Salehin, (M.S. Thesis), Schemes for Measuring Link Capacity of Wired Networks, 2007

Ibrahim Takouna, (M.S. Program), Fault-Tolerant Routing Schemes for Link and Node Failure, 2007

Laskhmi Ramesh, (M.S. Program), IP Lookup Schemes

Lenin Ham (B.S. program)

Diego Ramos (B.S. program)

Lenin Ham (B.S. in COE, REU Fall 2018)

Alvin Sarmiento (B.S. in COE, REU Summer 2018)

Jacob Fattakhov (B.S. in EE, REU Summer 2018)

Matthew Petrula (B.S. in EE, REU Summer 2017)

Haard Shah (B.S. in CS, REU Summer 2017)

Matt Lopez B.S. program, (REU Summer 2015)

Justin Kurylo (B.S. program, Senior Project)

Eugene Miglio (B.S. program, Senior Project)

Kenn Lipa (B.S. program, Senior Project)

Hector Anapan-Lavalle (B.S. program, Senior Project)

Mehul Patel (B.S. program, Senior Project)

Sujith Cherian (B.S. program, Senior Project)

Byron Diaz (B.S. program, Senior Project)

Ariel Matos (B.S., program Senior Project)

Ankur Oberoi (B.S. program, Senior Project)

Justin Walker (B.S. program, Senior Project), Design of Updateget, an Internet Software Gadget.

Brian DAllessandro, (B.S. program)Packet Classification Schemes, NSF Research Experience for Undergraduates, Summer 2006.

Jigar Joshi, (B.S. program) Multi-lateration Schemes, NSF Research Experience for Undergraduates

Mike Vazquez (B.S. program, Senior Project), Design of Scheduler for Scalable Packet Switch, Spring 2007.

Antonio Ponzi (B.S. program, Senior Project), GPS powered Personnel Location System, 2006

Manish Lad (B.S. program, Senior Project), GPS powered Personnel Location System, 2006

Thomas Ledger (Senior Project), GPS powered Personnel Location System, 2006

Adonis Peralta (B.S. program, Senior Project), GPS powered Personnel Location System, 2006

Keith Vicary (B.S. program, Senior Project), 64-bit Network Processor, (Honors College, Bronze Prize), 2005.

Guido Encalada (B.S. program, Senior Project), Intrusion Intention Detection, (Bronze Prize), 2005.

Pablo Tapia (B.S. program, Senior Project), Intrusion Intention Detection, (Bronze Prize), 2005.

Danny Murillo (B.S. program, Senior Project), Intrusion Intention Detection, (Bronze Prize), 2005.

Camilo Serrano (B.S. program, Senior Project), Intrusion Intention Detection, (Bronze Prize), 2005.

Robert Newrocki (B.S. program, Senior Project), Design and Implementation of a Scheduler for an IQ switch, 2004. Assistant Professor, Purdue University.

Darine Abisalek (Senior Project), Design and Implementation of a Scheduler for an IQ switch, 2004.

Shukri Abdelhalim (B.S. program, Senior Project), Design and Implementation of a Scheduler for an IQ switch, 2004.

Mohammed Abumokhemar (B.S. program, Senior Project), Design and Implementation of a Scheduler for an IQ switch, 2004.

Ankita Raut (B.S. program, Senior Project), Implementation in VHDL of a Scheduler for an IQ switch

Pratik Sheth (B.S. program, Senior Project), Implementation in VHDL of a Scheduler for an IQ switch

Suhasini Madidi (B.S. program, Senior Project), Implementation in VHDL of a Scheduler for an IQ switch

Justus Srigiri (B.S. program, Senior Project), Implementation in VHDL of a Scheduler for an IQ switch

Dev. Chem (B.S. program, Senior Project), Modeling and Implementation of a Buffered Crossbar Switch Fabric

Karin Gonzalez (B.S. program, Senior Project), Modeling and Implementation of a Buffered Crossbar Switch Fabric

Carolyn Faraqh (B.S. program, Senior Project), Modeling and Implementation of a Buffered Crossbar Switch Fabric

Jeison Arcos (B.S. program, Senior Project), Modeling and Implementation of a Buffered Crossbar Switch Fabric

Mark Skurzynski (B.S. program, Senior Project), Design and Implementation of a Switch Fabric and Scheduler for a High-Capacity Internet Router

James Nejmeh (B.S. program, Senior Project), Design and Implementation of a Switch Fabric and Scheduler for a High-Capacity Internet Router

Robert Lowry (B.S. program, Senior Project), Design and Implementation of a Switch Fabric and Scheduler for a High-Capacity Internet Router

Lou Aleksoski (B.S. program, Senior Project), Design and Implementation of a Switch Fabric and Scheduler for a High-Capacity Internet Router

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