Interference Aware Routing In 5G Backhaul Wireless Mesh Networks

Abstract

In the wireless backhaul network, the millimetre wave band can give several-Gbps transmission rates due to the presence of large volume of spectrum. However, routing is deliberated as a major problem for QoS support in wireless backhaul mesh networks (WBMN), because it decides whether the data traffic can be transmitted through the particular path or not. The routing scheme should consider link delay and interferences for ensuring accurate path quality estimation. In this paper, a Sea Lion Optimization based Link delay and interference aware (SLO-LDI) routing method is proposed for managing the inter/intra flow interferences in 5G wireless backhaul mesh network. This routing algorithm assigns weights to the individual links by estimating the quality of the link using LDI metric. Here, the transmission and contention delay along with the interferences of each link is measured by this LDI metric. Finally, the optimal link will be selected based on this weight to start data transmission. The performance of the proposed method is validated through extensive simulations under different traffic loads. The results show that, the proposed SLO-LDI outperforms other routing methods in terms of throughput and average end-to-end delay.