Multi-service QoS guarantee mechanism study based on multi-reject ARQ protocol
Weimin Wu · Radio and communications technology · 2006
Taking into account of high bit error rate (BER) and limited spectrum resource in wireless communication, this paper theoretically analyses the predominance of Multi-Reject Auto Repeat request protocol(MR-ARQ)in comparison to the traditional ARQ in terms of data throughput, transmission latency and jitter. It then proposes the three implementation strategies to provide Quality of Service (QoS) guarantee of multi-service data transmission based on the multi-reject ARQ protocol for Broadband Wireless Access (BWA) systems: multi-rate retransmit, multi-queuing, and scheduled uplink bandwidth block allocation scheme. Finally, the paper presents the simulation results of system performance before and after the use of these strategies to validate their feasibility and effectiveness in improving overall system performances.