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Design and Implementation of an "Approximate" Communication System for Wireless Media Applications by Sayandeep Sen; Syed Gilani; Shreesha Srinath; Stephen Schmitt; Suman Banerjee is a scholarly article available to read on EtoBox.

What is Design and Implementation of an "Approximate" Communication System for Wireless Media Applications about?

All practical wireless communication systems are prone to errors. At the symbol level such wireless errors have a well-defined structure: when a receiver decodes a symbol erroneously, it is more likely that the decoded symbol is a good "approximation" of the transmitted symbol than a randomly chosen symbol among all possible transmitted symbols. Based on this property, we define approximate communication, a method that exploits this error structure to natively provide unequal error protection to data bits. Unlike traditional (FEC-based) mechanisms of unequal error protection that consumes additional network and spectrum resources to encode redundant data, the approximate communication technique achieves this property at the PHY layer without consuming any additional network or spectrum resources (apart from a minimal signaling overhead) . Approximate communication is particularly useful to media delivery applications that can benefit significantly from unequal error protection of data bits. We show the usefulness of this method to such applications by designing and implementing an end-to-end media delivery system, called Apex. Our Software Defined Radio (SDR)-based experiments reve

Author

Sayandeep Sen; Syed Gilani; Shreesha Srinath; Stephen Schmitt; Suman Banerjee

Publisher

ACM

Published

2010

Language

EN