Energy-aware Multipath Provisioning in wireless mesh networks

Multipath routing has been extensively employed in wireless mesh networks (WMNs) to provide network reliability and survivability, thereby, improving energy consumptions. To support the network survivability, we need to protect users´ requests against network failure such as link or node failure. For each request, a primary path is set up for normal transmission, and an alternate path (protection path) should also be provided to protect the request in case of network failure. In this paper, we study the network survivability through the use of multipath scheme to handle dynamic network traffic, where users´ requests have random arrival times. Compared to previous work, our scheme considers each link´s bandwidth, reusability, and the energy consumption factors when providing multiple paths for each request, to support the network survivability under multiple failure. By applying our scheme, the numerical results show that we can improve the network survivability in handling multiple failures.