Joint Design in Wireless Mesh Network

Neethu Verjisen, Jubin Mathew

Abstract: Wireless multihop mesh networks are an attractive solution to offer good throughput, energy, and coverage trade-offs. Joint design have been proposed to improve the adaptability and performance of multihop mesh networks. Joint design provides an opportunity to optimize performance by jointly tuning parameters at the different layers. The performance of the network depends on routing, medium access, and physical-layer parameters congestion control and on their interactions. An efficient physical interference model is considered for cross layer design of a fixed random access based wireless multihop network. CSMA/CA medium access control (MAC) protocol for link-layer operation is considered. Then a joint routing, medium access, and transmission range optimization problem is considered to determine the optimal configuration of the routing, access probability, and transmission range parameters in a CSMA/CA system. This study helps us to provide insights on the interaction of various network layer parameters and to further improve the network performance.

Keywords: Cross-layer, medium access control, routing, throughput, reliability