Improving Throughput and Fairness by Improved Channel Assignment Using Topology Control Based on Power Control for Multi-Radio Multi-Channel Wireless Mesh Networks
Multi-Radio Multi-Channel (MRMC) Wireless Mesh Networks (WMNs) achieve higher throughput using multiple simultaneous transmissions and receptions. However, due to limited number of non-overlapping channels, such networks suffer from co-channel interference, which degrades their performance. To mitigate co-channel interference, effective Channel Assignment Algorithms (CAAs) are desired. In this paper, the authors propose a novel CAA, Topology-controlled Interference-aware Channel-assignment Algorithm (TICA), for MRMC WMNs. This algorithm uses topology control based on power control to assign channels to multi-radio mesh routers such that co-channel interference is minimized, network throughput is maximized, and network connectivity is guaranteed.