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中文摘要：
提供一定的服务质量保证（QoS）是多跳无线网络研究中的热点和难点，本文基于TDMA/FDMA机制提出了一种支持多信道多跳无线网络话音级QoS业务的MAC层接入协议RA／SRN。该协议以RBRP协议思想为基础。针对无线信道中隐藏、暴露终端造成的信道利用率降低和分组冲突问题进行改进设计，减小了信道冲突概率，提高了信道利用率，降低了信道接人时延，为网络层QoS路由协议提供了良好的支持。
英文摘要：
How to provide definite QoS services is the hot and difficult point in multi-hop mobile wireless network research domain. Based on TDMMFDMA mechanism, we propose a MAC protocol RA/SRN, which supports voice-class QoS service in multi-hop mobile wireless network.This protocol, which takes example by the principle of RBRP, is designed aiming at decrease of channel utilization and the packets＇ collision caused by hidden terminal and exposed terminal problems of wireless channel. It decreases the collision probability and access delay, and increases the utilization of the channel. Thus, it offers a good support for the QoS routing protocol of upper layer.
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