LAmETx: The New Routing Metric with Load Balancing in WMNs
N. Elhaoudar, Abdelilah Maach · 2014
Wireless Mesh Network (WMN) is a multi-hop mesh network that consists of mesh routers and mesh clients, where mesh routers are static and form the backbone of the mesh network. The static nature of mesh nodes imposes requirements for designing routing metrics that support high throughput and low packet delay. This paper provides a comprehensive survey of various routing metrics that have been proposed for wireless mesh networks and a new routing metrics have been proposed. The literal of this metric is to route the traffic through congestion free areas and balance the load amongst the network nodes. We integrate this new metric in the well known OLSR routing protocol and study the performance of LAmETx through simulations. We show that the proposed metric is able to adapt to changes in load balancing traffic better than existing link metrics such as ETX. We also demonstrate that our metric delivers high-throughput and low delay. Avoidance of congestion at nodes, high throughput, low levels of interference, isotonicity, efficient utilization of channel capacity, minimal transmission delay are some of the desired characteristics of a good routing metric for wireless mesh networks.