Distributed Scheduling based Dimensioning Mechanism for Wireless Mesh Networks

Abstract — In wireless mesh network (WMN), especially in distributed (infrastructure-less) mode, common channel access results in inter-node interference which limits the available capacity of the network. To facilitate the growth of the network (i.e., addition of new routers/nodes), it is therefore necessary to identify the maximum allowable system capacity that can be achieved without degrading the performance. In this paper, we propose a dimensioning mechanism for a 802.16 based distributed WMN where we utilize the results of [1] to analyze the system capacity (conversely node capacity) in bottleneck conditions. To guarantee appropriate throughput for the bottleneck and its neighboring nodes, the network bound (maximum number of added nodes, hu) is set accordingly. Simulations results demonstrate the validity of the proposed dimensioning algorithm and enables network providers or operators to select hu in accordance to their system requirements. I