Recent trends in channel assignment algorithms for multi-radio multi-channel in Wireless Mesh Network

Wireless Mesh Networks (WMN) are an attractive technology and has been widely accepted by many organizations due to features such as accessing and routing. The issues regarding capabilities of multi-radio multi-channel (MRMC) has been extensively studied to design an efficient algorithm for WMN. Channel assignment and various techniques have been designed and developed to improve the network performance of MRMC. This paper offers conceptual understanding through a systematic review by classifying channel assignment constraints and its proposed solution. The results from our study provide clear understanding of approaches reported by previous studies in solving channel assignment problem. The analysis offered variety of areas that can be explored in leveraging channel assignment techniques towards improving the network performances

Priority-based minimum interference channel assignment technique for multi-radio multi-channel wireless mesh networks

Wireless mesh networks (WMN) have been attracting the interest of many researchers in these recent years. Several researchers worked on the optimisation of network performances for multi-radio multi-channel WMN with constrained channel resources. Others demonstrated that partially overlapping channels could expand these limited resources. Where there are insufficient resources, interfered links may significantly impact the capabilities of the channel. The problems of channel assignment have been considered NPhard problems. A PRIority-based Minimum Interference Channel Assignment (PRIMICA) algorithm has been developed to minimise the effect of interference on WMN efficiency by assigning the radio to the least-interfering available channel. Channels are assigned based on the priority weight of the interfering node with the lowest value. The proposed algorithm outperformed network throughput, packet loss ratio, and end-to-end delay, as demonstrated by performance simulation