Power Allocation to Achieve Maximum Throughput in Multi-radio Multi-channel Mesh Network
Menghui Li, Tao Peng, Hao Wu · 2020
Multi-radio multi-channel wireless mesh network (MRMC-WMN) has attracted wide attention due to its good throughput performance, robustness and relatively low cost. The resource allocation algorithm of the MRMC node has a decisive influence on the performance of the MRMC-WMN network. The current resource allocation scheme is mainly divided into two parts: channel allocation and power allocation. The former has been extensively studied. For the second problem, the existing research aims to complete the allocation under the condition that the nodes can obtain the complete information of the entire network, but the problem of fully distributed allocation is not well solved. In this paper, a throughput model and a simple and fast power allocation scheme under a fair network are proposed. First, a single node detects the signal-to-noise ratio of the connectable users on the interface, and uses the modified water filling algorithm with upper and lower bounds to adjust the power of the multiple interfaces. On this basis, all single nodes converge to the power state when the current throughput reaches the maximum to complete the power allocation of the entire network.