An adaptive multi-channel allocation scheme for multimedia services in large-scale wireless mobile networks

For multimedia applications, each call may need to be assigned multiple channels to satisfy its bandwidth requirement. In order to provide necessary communication qualities and increase the traffic-carrying capacity, efficient assignment of wireless channels for multimedia communications is necessary. This work presents an adaptive distributed multi-channel assignment scheme for large-scale wireless mobile networks. A weight-based multi-channel selection scheme and a rate adaptation technique are proposed to facilitate compact co-channel cells and adapt to the quality of real-time applications to satisfy users' requirement. Experimental results demonstrate that our scheme outperforms other channel allocation schemes for multi-channel assignment.