Using Orthogonal Channels for Supporting Multicast Service in Multi-Channel Wireless Mesh Networks
Unlike wired networks, the capacity of a wireless network is interference limited due to the broadcast nature of wireless medium. Some multicast wireless network protocols do not consider channel assignment issue, that they cause interference at transmission nodes, hence do not use full capacity of the network. Interference can be reduced and throughput improved with the use of multichannel features. Therefore, this paper used orthogonal channels for sending and receiving nodes in the network. The authors propose EWM (Efficient Wireless Multicast) method that is distributed scheme for constructing Multicast tree in Multi-Channel Multi-Interface Wireless Mesh Networks (MIMC-WMN) which selects relay nodes and in distributed form assign orthogonal radio channels to them.