171 citations · 658 across the 34 of their papers we have counts for
10 papers · 1 filter
Optimal Beam Training for mmWave Massive MIMO using 802.11ay
Lyutianyang Zhang, Sumit Roy
Beam training of 802.11 ad is a technology that helps accelerate the analog weighting vector (AWV) selection process under the constraint of the existing code-book for AWV. However…
Architecture-Algorithmic Trade-offs in Multi-path Channel Estimation for mmWAVE Systems
Lyutianyang Zhang, Sumit Roy, Liu Cao
5G mmWave massive MIMO systems are likely to be deployed in dense urban scenarios, where increasing network capacity is the primary objective. A key component in mmWave transceiver…
Communications-Caching-Computing Tradeoff Analysis for Bidirectional Data Computation in Mobile Edge Networks
Yaping Sun, Lyutianyang Zhang, Zhiyong Chen +1
With the advent of the modern mobile traffic, e.g., online gaming, augmented reality delivery and etc., a novel bidirectional computation task model where the input data of each ta…
Performance Analysis of CSMA with Multi-Packet Reception: The Inhomogeneous Case
Shwan Ashrafi, Chen Feng, Sumit Roy
The problem of Carrier Sense Multiple Access (CSMA) with multi-packet reception (MPR) is studied. Most prior work has focused on the homogeneous case, where all the mobile users ar…
A Modified CSMA/CA Protocol for OFDM Underwater Networks: Cross Layer Design
Yanling Yin, Sumit Roy, Payman Arabshahi
The underwater acoustic channel continues to present significant challenges to efficient throughput performance of underwater acoustic sensor networks (UASNs) in varying scenarios.…
Spectrum Sharing Between A Surveillance Radar and Secondary Wi-Fi Networks
Farzad Hessar, Sumit Roy
Co-existence between unlicensed networks that share spectrum spatio-temporally with terrestrial (e.g. Air Traffic Control) and shipborne radars in 3-GHz band is attracting signific…
On Dissemination Time of Random Linear Network Coding in Ad-hoc Networks
Shwan Ashrafi, Sumit Roy, Hamed Firooz
Random linear network coding (RLNC) unicast protocol is analyzed over a rapidly-changing network topology. We model the probability mass function (pmf) of the dissemination time as…
Minimum Energy Source Coding for Asymmetric Modulation with Application to RFID
Farzad Hessar, Sumit Roy
Minimum energy (ME) source coding is an effective technique for efficient communication with energy-constrained devices, such as sensor network nodes. In this paper, the principles…
Wireless Network Coding via Modified 802.11 MAC/PHY: Design and Implementation on SDR
Mohammad H. Firooz, Zhiyong Chen, Sumit Roy +1
Network coding (NC), in principle, is a Layer-3 innovation that improves network throughput in wired networks for multicast/broadcast scenarios. Due to the fundamental differences…
Data Dissemination in Wireless Networks with Network Coding
Mohammad Hamed Firooz, Sumit Roy
We investigate the use of network coding for information dissemination over a wireless network. Using network coding allows for a simple, distributed and robust algorithm where nod…