171 citations · 658 across the 34 of their papers we have counts for
14 papers · 1 filter
IEEE 802.11be Network Throughput Optimization with Multi-Link Operation and AP Coordination
Lyutianyang Zhang, Hao Yin, Sumit Roy +3
IEEE 802.11be (Wi-Fi 7) introduces a new concept called multi-link operation (MLO), which allows multiple Wi-Fi interfaces in different bands (2.4, 5, and 6 GHz) to work together t…
Enhancing WiFi Multiple Access Performance with Federated Deep Reinforcement Learning
Lyutianyang Zhang, Hao Yin, Zhanke Zhou +2
Carrier sensing multiple access/collision avoidance (CSMA/CA) is the backbone MAC protocol for IEEE 802.11 networks. However, tuning the binary exponential back-off (BEB) mechanism…
Improving the Performance of WLANs by Reducing Unnecessary Active Scans
Dheryta Jaisinghani, Vinayak Naik, Sanjit K. Kaul +2
We consider the problem of excessive and unnecessary active scans in heavily utilized WLANs during which low rate probe requests and responses are broadcast. These management frame…
SAS-Assisted Coexistence-Aware Dynamic Channel Assignment in CBRS Band
Xuhang Ying, Milind Buddhikot, Sumit Roy
The paradigm of shared spectrum allows secondary devices to opportunistically access spectrum bands underutilized by primary owners. Recently, the FCC has targeted the sharing of t…
Analysis of CSAT performance in Wi-Fi and LTE-U Coexistence
Vanlin Sathya, Morteza Mehrnoush, Monisha Ghosh +1
In this paper, we study energy-based Carrier Sense Adaptive Transmission (CSAT) for use with LTE-U and investigate the performance in Wi-Fi/LTE-U coexistence using theoretical anal…
Analytical Modeling of Wi-Fi and LTE-LAA Coexistence: Throughput and Impact of Energy Detection Threshold
Morteza Mehrnoush, Vanlin Sathya, Sumit Roy +1
With both small-cell LTE and Wi-Fi networks available as alternatives for deployment in unlicensed bands (notably 5 GHz), the investigation into their coexistence is a topic of act…
Optimizing City-Wide White-Fi Networks in TV White Spaces
Sneihil Gopal, Sanjit K. Kaul, Sumit Roy
White-Fi refers to WiFi deployed in the TV white spaces. Unlike its ISM band counterparts, White-Fi must obey requirements that protect TV reception. As a result, optimization of c…
Detecting LTE-U Duty Cycling Misbehavior for Fair Sharing with Wi-Fi in Shared Bands
Xuhang Ying, Radha Poovendran, Sumit Roy
Coexistence of Wi-Fi and LTE Unlicensed (LTE-U) in shared or unlicensed bands has drawn growing attention from both academia and industry. An important consideration is fairness be…
Optimizing Networks for Internet Access Using Tethering
Vandana Mittal, Sanjit K. Kaul, Sumit Roy
We investigate scenarios where Internet access to a user device (node) is available only via the cellular network. However, not every node may connect directly to it. Instead, some…
Pricing Mechanisms for Crowd-Sensed Spatial-Statistics-Based Radio Mapping
Xuhang Ying, Sumit Roy, Radha Poovendran
Networking on white spaces (i.e., locally unused spectrum) relies on active monitoring of spectrum usage. Spectrum databases based on empirical radio propagation models are widely…
PCF Scheme for Periodic Data Transmission in Smart Metering Network with Cognitive Radio
Yue Yang, Sumit Roy
The next generation Advanced Metering Infrastructure (AMI), with the aid of two-way Smart Metering Network (SMN), is expected to support many advanced functions. In this work, we f…
Capacity Considerations for Secondary Networks in TV White Space
Farzad Hessar, Sumit Roy
The so-called `TV white spaces' (TVWS) - representing unused TV channels in any given location as the result of the transition to digital broadcasting - designated by U.S. Federal…
Collaborative Downloading in VANET using Network Coding
Mohammad H. Firooz, Sumit Roy
Data downloading on the fly is the base of commercial data services in vehicular networks, such as office-onwheels and entertainment-on-wheels. Due to the sparse spacial distributi…
Link Delay Estimation via Expander Graphs
Mohammad H. Firooz, Sumit Roy
One of the purposes of network tomography is to infer the status of parameters (e.g., delay) for the links inside a network through end-to-end probing between (external) boundary n…