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.%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％.
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