A Distributed Assistance Multicast Scheduling Algorithm in Cognitive Wireless Mesh Networks
Zhao Ming · Journal of Chinese Computer Systems · 2013
Cognitive wireless mesh network is one of the primary networks in the next generation broadband wireless communication system,which makes use of the unused spectrum resource which belongs to the primary users in order to increase the broadband.Multicast is one of the very popular wireless service.We are aim to solve the problem of multicast scheduling between the CR-Mesh route and CR-Mesh client.The multicast time of wireless service is becoming longer on account of the heterogeneous of channel for CR-Mesh route and CR-Mesh client.The goal of this paper is to minimize the multicast time of wireless service.A distributed assistance multicast scheduling algorithm(DAMSA) in cognitive wireless mesh networks is proposed in this paper.The multicast time of wireless service reduces through the assistance of nodes which belong to or not belong to the same multicast group.Simulation results show that the proposed algorithm not only can achieve low multicast time,but also can increase the throughput of system.