MAC Independent Routing Methods for Multi-Services Supporting Wireless Mesh Networks

Network Coding Opportunistic Routing (NCOR) methods of wireless mesh networks have the advantage of high throughput and high reliability. However, they suffer problems of higher decoding latency and frequent packet collisions. Also, they have the deficiency in supporting multi-type services. Focusing on the QoS problems of multi-service supporting, we study the optimized NCOR routing methods which are independent of QoS supported MAC protocols, to support high throughput service flows and low latency traffic flows transmit simultaneously based on 802.11 series MAC protocols. We present a load-aware and congestion control method to optimize the MORE protocol. By limiting its over consuming of the network resource it can support the transmission of high throughput service flows. We also propose a delay constrained opportunistic routing protocol (DCOR) based on broadcasting MAC protocol to support low latency service transmission in wireless mesh networks with NCOR routing methods.