摘要
针对载运平台间无线移动组网的传统天线的弊端,给出了扇区天线方案.在NS2环境下简单仿真了该网络,结果定性验证了扇区天线相对全向天线有性能改善.建立了定量分析信道冲突和吞吐量的模型,定量分析结果表明使用扇区天线代替全向天线后,随着天线扇区数的增加,信道冲突现像近似地以幂函数规律减少,总吞吐量近似地以指数函数规律提高.给出了总吞吐量的近似估算方法.
A blueprint of wireless vehicle network which is equipped with sector antenna is designed. The design is simulated in NS2 for qualitative study. The mathematic quantificational analysis of the probability of channel collision and gross throughput is provided. The analysis indicates that, as the number of elements of the sector antenna increasing, probability of channel collision is decreasing approximately as power function, and gross throughput is increasing exponential approximately.
出处
《武汉理工大学学报（交通科学与工程版）》
2007年第6期1033-1036,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
国家自然科学基金项目资助(批准号:50421703)
