Network-Level Cooperative Protocols for Wireless Multicasting: Stable Throughput Analysis and Use of Network Coding
Anthony Fanous, Anthony Ephremides

TL;DR
This paper analyzes how network coding at relay nodes enhances stable throughput in wireless multicasting, demonstrating that cooperation and network coding significantly outperform traditional retransmission methods.
Contribution
It introduces a network-level cooperative protocol with random linear network coding at relays, showing improved throughput over conventional methods.
Findings
Cooperation increases stable throughput rates.
Network coding further enhances throughput with larger coding fields.
Relay-based network coding outperforms traditional retransmission policies.
Abstract
In this paper, we investigate the impact of network coding at the relay node on the stable throughput rate in multicasting cooperative wireless networks. The proposed protocol adopts Network-level cooperation in contrast to the traditional physical layer cooperative protocols and in addition uses random linear network coding at the relay node. The traffic is assumed to be bursty and the relay node forwards its packets during the periods of source silence which allows better utilization for channel resources. Our results show that cooperation will lead to higher stable throughput rates than conventional retransmission policies and that the use of random linear network coding at the relay can further increase the stable throughput with increasing Network Coding field size or number of packets over which encoding is performed.
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