Protocols for Coding-Aware Routing in Wireless Networks
Jian Ma · ZTE communications · 2009
Cope, an opportunistic network coding mechanism, investigates how to implement network coding in a wireless network.However, Cope passively waits for the appearance of network coding opportunities.To further improve the performance of network coding, integration of network coding and wireless routing protocol is required to greatly improve the throughput of wireless networks by creating more coding opportunities at wireless nodes.In this article, we introduce typical coding-aware wireless routing protocols, which mainly include Markovian metric based routing protocol, coding-aware opportunistic routing mechanism CORE, Distributed Coding-Aware Routing(DCAR), Rate-Adaptive Coding-Aware Multiple Path Routing(RCR), and Coding-Aware Multi-Path Routing(CAMP).Some problems like selection of new routing metric and cross layer design still require further investigation to enable efficient coding-aware routing.