201 citations · 1.2k across the 107 of their papers we have counts for
9 papers · 2 filters
Error-Correcting Regenerating and Locally Repairable Codes via Rank-Metric Codes
Natalia Silberstein, Ankit Singh Rawat, Sriram Vishwanath
This paper presents and analyzes a novel concatenated coding scheme for enabling error resilience in two distributed storage settings: one being storage using existing regenerating…
Polar Coding for Fading Channels: Binary and Exponential Channel Cases
Hongbo Si, O. Ozan Koyluoglu, Sriram Vishwanath
This work presents a polar coding scheme for fading channels, focusing primarily on fading binary symmetric and additive exponential noise channels. For fading binary symmetric cha…
Downlink Multi-Antenna Heterogeneous Cellular Network with Load Balancing
Abhishek K. Gupta, Harpreet S. Dhillon, Sriram Vishwanath +1
We model and analyze heterogeneous cellular networks with multiple antenna BSs (multi-antenna HetNets) with K classes or tiers of base stations (BSs), which may differ in terms of…
Lossy Compression of Exponential and Laplacian Sources using Expansion Coding
Hongbo Si, O. Ozan Koyluoglu, Sriram Vishwanath
A general method of source coding over expansion is proposed in this paper, which enables one to reduce the problem of compressing an analog (continuous-valued source) to a set of…
Precoding-Based Network Alignment For Three Unicast Sessions
Chun Meng, Abhik Kumar Das, Abinesh Ramakrishnan +3
We consider the problem of network coding across three unicast sessions over a directed acyclic graph, where each sender and the receiver is connected to the network via a single e…
Polar Coding for Fading Channels
Hongbo Si, O. Ozan Koyluoglu, Sriram Vishwanath
A polar coding scheme for fading channels is proposed in this paper. More specifically, the focus is Gaussian fading channel with a BPSK modulation technique, where the equivalent…
On Finite Alphabet Compressive Sensing
Abhik Kumar Das, Sriram Vishwanath
This paper considers the problem of compressive sensing over a finite alphabet, where the finite alphabet may be inherent to the nature of the data or a result of quantization. The…
Explicit MBR All-Symbol Locality Codes
Govinda M. Kamath, Natalia Silberstein, N. Prakash +5
Node failures are inevitable in distributed storage systems (DSS). To enable efficient repair when faced with such failures, two main techniques are known: Regenerating codes, i.e.…
Optimal Locally Repairable Codes via Rank-Metric Codes
Natalia Silberstein, Ankit Singh Rawat, O. Ozan Koyluoglu +1
This paper presents a new explicit construction for locally repairable codes (LRCs) for distributed storage systems which possess all-symbols locality and maximal possible minimum…