摘要
提出一种用于军事保密通信的混沌分组跳频网络多址接入协议.建立了跳频分组网络随机接入的数学模型,根据混沌跳频序列所具有的随机和均匀分布特性,从理论上分析并推导出分组网络模型中由于跳频图案碰撞而引起的误分组率和吞吐率性能.以Logistic映射所产生的混沌跳频序列为例,进行了跳频分组网络吞吐率的计算机仿真.理论分析和实验结果证明,分组长度和频率点数的比值是决定网络中用户接入性能的主要因素.
A kind of packet chaotic frequencyhopping (FH) multiaccess protocol was presented for military communication. With the random and uniform distribution of chaotic FH sequence, in theory, the performance of packet error and throughput caused by the frequency hit were deduced.The performance of the FH packet random multiaccess network applying Logistic FH sequence was simulated by computer. The analysis and simulation results prove that the ratio of the length of packet to the hopping frequency points is the key parameter of the system for the performance of multiaccess.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2003年第10期1603-1605,共3页
Journal of Shanghai Jiaotong University
基金
国家自然科学基金资助项目(60072028)
关键词
混沌
跳频序列
多址接入
chaotic
frequency-hopping sequences
multiple access
