无线传输帧分段机制研究与OPNET仿真  

Research and OPNET Simulation of Frame Fragmentation Mechanism in Wireless Network Communication

作　　者：王耀国[1] 夏靖波[1] 郝杲旻[1] 

机构地区：[1]空军工程大学电讯工程学院,陕西西安710077

出　　处：《通信技术》2008年第6期20-22,25,共4页Communications Technology

摘　　要：文章从提高无线网络数据传输的综合性能出发,引入帧分段机制。理论分析证明了该机制能够降低网络传输的误码率、提高帧传输效率,进而对机制作了改进:根据原始包长自适应分段,并考虑不同业务性能参量及不同站点的需求,分别设计不同分段机制。最后,得到了适用于固定站点和移动站点的帧分段方案,并通过OPNET仿真验证了研究结果的正确性。To improving the comprehensive performance, a frame fragmentation mechanism is introduced into wireless network communication. Based on analysis its advantages in decreasing bit error rate and raising the transmitting efficiency, the mechanism is modified,, including automatic fragmenting based on initial packet size. Furthermore, several fragmentation mechanisms are devised for different server parameters and stations. Finally, 了the fragmentation designs suitable for fixed and roaming stations obtained and verified by OPNET simulation.

关 键 词：分段阈值 误码率 OPNET仿真 

分 类 号：TP393.17[自动化与计算机技术—计算机应用技术]