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8 papers · 2 filters
The Effect of Spatial Coupling on Compressive Sensing
Shrinivas Kudekar, Henry D. Pfister
Recently, it was observed that spatially-coupled LDPC code ensembles approach the Shannon capacity for a class of binary-input memoryless symmetric (BMS) channels. The fundamental…
Multilevel Coding Schemes for Compute-and-Forward
Brett Hern, Krishna Narayanan
We investigate techniques for designing modulation/coding schemes for the wireless two-way relaying channel. The relay is assumed to have perfect channel state information, but the…
A new sufficient condition for sum-rate tightness in quadratic Gaussian multiterminal source coding
Yang Yang, Yifu Zhang, Zixiang Xiong
This work considers the quadratic Gaussian multiterminal (MT) source coding problem and provides a new sufficient condition for the Berger-Tung sum-rate bound to be tight. The conv…
An MGF-based Unified Framework to Determine the Joint Statistics of Partial Sums of Ordered Random Variables
Sung Sik Nam, Mohamed-Slim Alouini, Hong-Chuan Yang
Order statistics find applications in various areas of communications and signal processing. In this paper, we introduce an unified analytical framework to determine the joint stat…
A Selection Region Based Routing Protocol for Random Mobile ad hoc Networks
Di Li, Changchuan Yin, Changhai Chen +1
We propose a selection region based multi-hop routing protocol for random mobile ad hoc networks, where the selection region is defined by two parameters: a reference distance and…
LDPC Code Design for Transmission of Correlated Sources Across Noisy Channels Without CSIT
Arvind Yedla, Henry D. Pfister, Krishna R. Narayanan
We consider the problem of transmitting correlated data after independent encoding to a central receiver through orthogonal channels. We assume that the channel state information i…