Corridor-based routing: Constructing and maintaining stable support-structures for wireless multihop transmissions

Conventional shortest path routing protocols suffer from short link lifetime and require much effort for route recovery. Corridor-based routing aims at providing a stable support structure for wireless multihop networks, thus enabling high data throughput. The intermediate hops within the corridor contain multiple nodes, which cooperate and forward data jointly to exploit the diversity of links within the corridor. In this work, we propose a cross-layer approach for corridor construction taking the estimated link lifetime into account. Furthermore, a concept for corridor maintenance is introduced which can adapt the corridor to changes of the network caused by node movements. In combination with a novel resource allocation scheme based on OFDMA, corridor-based routing achieves significant throughput gains and higher stability compared to shortest path routing.