Joint fair resource allocation for multi-radio multi-channel in wireless mesh networks: An efficient preemption approach

The task of supporting integrated multi-rate multimedia traffic in a bandwidth wireless mesh environment poses a unique and challenging problem for network managers. In this paper we propose a joint fairness-based preemption hybrid algorithm. A new bandwidth allocation scheme which partitions the available bandwidth amongst the different traffic classes. In a way that insures quality of service (QoS) guarantees for real-time data, while minimizing the maximum blocking probability for voice and data connections. The main objective is to find an approach that satisfy user-specified QoS constraints, specifically with respect to rate and delay demands. Our approach provides higher priority to real-time flows than elastic flows by allocating the necessary bandwidth for the former and fairly allocating the left-over bandwidth to the latter. The delicate task of partitioning the bandwidth is accomplished by an efficient preemption hybrid algorithm, which uses traffic parameters, consisting only of aggregate traffic load and the total available bandwidth.