【摘要】 文章基于IEEE 802.11a协议,从理论上分析了物理层的编码速率、调制方式,以及MAC层的数据帧长度对吞吐率的影响,提出一种基于PHY和MAC层的跨层算法。仿真结果表明,文章提出的PHY-MAC跨层传输方案能显著提高系统的数据吞吐率。更多还原

【Abstract】 Based on the IEEE802.11a standard, this paper analyzes the impact of physical layer coding rate, modulation and the frame length of the MAC layer on throughput performance.A MAC and PHY cross-layer algorithm is proposed.Simulation results show that the proposed cross-layer transmission scheme could remarkably enhance the system throughput rate.更多还原