A cross-layer cooperative method for IEEE 802.16 mesh networks

Abstract

This paper proposes a novel Cross-layer Cooperation Method for IEEE 802.16 mesh networks (CCM). CCM selects cooperation nodes through cross-layer consideration of both channel state of physical layer and control overhead on MAC layer to maximize throughput. CCM uses the enhanced three-way handshaking to allocate the bandwidths between source node and cooperation nodes. Extensive simulations are conducted to demonstrate that CCM can effectively select optimal cooperation nodes according to dynamic network scenarios, and in turn increase channel capacity and improve system performance.