中文摘要：

对接入参数调整策略和参数范围进行研究,基于信道状态信息,提出支持不同优先等级业务类型的分布式自适应接入方案。通过感知并统计信道状态数据,设计适合不同业务类型的线性调整竞争窗口的方法,解决接入参数调整对于数据传输状态的依赖和固定竞争窗口范围对性能的影响。仿真结果验证了该算法的有效性和良好的可扩展性能。

英文摘要：

By studying the adjustment rules and ranges of access parameters,a distributed and adaptive access mechanism was proposed based on channel status information.By sensing and counting channel busy status,a node adjusting contention window linearly according to different access categories was designed,which separated the adjustment rules of parameters from the status of data transmissions and alleviated the effect of fixed ranges of contention window on performance.The simulation results demonstrate the validity and scalability of the proposed access mechanism.