A Novel Relaying Strategy for Wireless Multihop Backhaul Networks

In this paper we present a novel transmission scheme for wireless multihop backhaul networks. The scheme consists of group successive relaying that efficiently exploits half-duplex relays and a coding scheme that improves quantize-map-and- forward (QMF). We derive an achievable rate region of the proposed scheme and attain a closed-form expression in the asymptotic case for several network models of interests. It is shown that the proposed scheme outperforms the multihop routing, which is a solution currently proposed for wireless multihop backhaul networks. Furthermore, the performance gap increases as a network becomes denser. Based on the proposed scheme, we present energy-efficient routing referred to as energy- harvesting in which each node requires a lower transmission power to achieve a desired performance compared to other schemes.