Two-way Wireless Video Communication using Randomized Cooperation, Network Coding and Packet Level FEC

TL;DR

This paper presents a novel wireless two-way video communication system combining network coding, randomized cooperation, and packet-level FEC to improve performance under delay constraints, especially over large distances.

Contribution

It introduces an integrated system that combines network coding, randomized distributed space-time coding, and FEC for enhanced two-way wireless video communication.

Findings

Significant performance improvements over traditional direct transmission.

Enhanced error resilience and reduced delay in large-distance scenarios.

Outperforms existing cooperative transmission methods.

Abstract

Two-way real-time video communication in wireless networks requires high bandwidth, low delay and error resiliency. This paper addresses these demands by proposing a system with the integration of Network Coding (NC), user cooperation using Randomized Distributed Space-time Coding (R-DSTC) and packet level Forward Error Correction (FEC) under a one-way delay constraint. Simulation results show that the proposed scheme significantly outperforms both conventional direct transmission as well as R-DSTC based two-way cooperative transmission, and is most effective when the distance between the users is large.