Dynamic Channel Allocation Technique for Distributed Multi radio Multi channel Multi path routing in Wireless Mesh Networks

Recently, demand of extensive and ease remote scope is expanding very rapidly, ranging from a campus to wide zones. It has spurred to develop a highly efficient architecture for multihop wireless communication considering wireless mesh network based on the standards of IEEE 802.11s. In wireless mesh network based communication, channel assignment is an important and crucial task which affects the performance of network. Channel assignment is a process to perform selection of best channels for any individual node or entire network. This process mainly aims on the network performance improvement by increasing the network capacity. This issue of channel assignment has been discussed widely in multiradio wireless mesh networks. Various approaches have been presented to address this issue but still it suffers in the case of implementation due to its complexity. Despite of this, a new approach for connectivity, routing and frame transmission is introduced by IEEE 802.11s standards. Various unsolved issues and challenges present in multichannel architecture due to which these architectures are getting less consideration. Various techniques have been proposed to obtain standardize channel allocation schemes with the help of robust routing protocols in wireless mesh networks. Some of these techniques aim on the network throughput maximization and network interference minimization resulting in network performance enhancement. According to existing protocols, single channel information and static allocation is utilized which degrades the network performance of wireless mesh networks. Key challenge for researchers is to provide an efficient approach for channel allocation without inducing interference and resulting in improvement in throughput in WMNs. In this work we try to address this issue by developing an efficient scheme for channel allocation. To address the issue of channel allocation, here we present a dynamic channel allocation scheme for multi path routing protocol for WMNs. WMNs create inter-flow and intra-flow channels which causes interference during communication. To avoid this interference, dynamic channel allocation schemes are widely used to provide reliable communication. This protocol maintains and establishes multichannel communications which are changing frequently and data flow is separated into multipath. Simulation study is carried out using MATLAB simulation tools and performance of proposed channel allocation approach is evaluated. Simulation study shows that proposed approach for dynamic channel allocation scheme is capable to achieve better results in terms of throughput, delay etc. by achieving adaptability, less communication overhead and interference