基于动态p-坚持的无线媒质访问控制算法  

Wireless medium access control based on dynamic p-persistent algorithm

作　　者：赵海军[1] 崔梦天[2] 李明东[1] 

机构地区：[1]西华师范大学计算机学院,四川南充637002 [2]西南民族大学计算机科学与技术学院,成都610041

出　　处：《计算机应用》2012年第12期3505-3507,3524,共4页journal of Computer Applications

基　　金：国家自然科学基金资助项目(61102007);四川省教育厅自然科学基金资助项目(10ZC012);中央高校基本科研业务费专项资金资助项目(12NZYBS05)

摘　　要：针对无线网络中的媒质访问控制存在的不足,提出了一种新的算法。该算法基于动态p-坚持算法,其核心思想采用虚拟传输或虚拟线程,目标是为动态p-坚持算法提供更多的信息以获得最佳传输概率,提高无线带宽的利用效率。仿真表明,新算法平均提高吞吐量约27%,平均降低碰撞率约28%。Concerning the medium access control shortcoming of wireless network,a sort of new algorithm was proposed in this paper.The algorithm was based on the dynamic p-persistent algorithm and its kernel idea was derived from virtual transmission or virtual thread.The aim that provided more information for the dynamic p-persistent algorithm to obtain the optimal transmission probability was to increase available efficiency of wireless bandwidth.The simulations show that the proposed algorithm increases throughput about 27%,and reduces collision rate about 28% on average.

关 键 词：无线媒质 访问控制 传输概率 吞吐量 

分 类 号：TN915.6[电子电信—通信与信息系统]