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本文将认知无线电(cognitive radio,CR)和图论引入差分跳频(differential frequency hopping,DFH)网络,提出基于IC着色和干扰温度模型的认知差分跳频多址(IC-ITMA)原理,用IC着色与干扰温度理论控制网内用户的发射行为,网内各发射机在接收机处产生的干扰温度正交.接收机根据测得的干扰温度来区分它们,使之达到区分预期信号和干扰信号的目的.仿真结果表明,该方法较传统差分跳频网络可以显著提高抗多址干扰性能.
In this dissertation, cognitive radio (CR) and graph theory are introduced into differential frequency hopping (DFH) networks, and a cognitive differential frequency hopping multiple access (IC-ITMA) principle based on IC coloring and interference temperature models is proposed. Using IC coloring and interference temperature theory to control the transmission behavior of users in the network, the interference temperature generated by each transmitter in the network is orthogonal to each other, and the receiver distinguishes them according to the measured interference temperature so as to achieve the distinction between the expected signal and The purpose of interference signal.The simulation results show that this method can significantly improve the anti-MAI performance compared with the traditional differential frequency hopping network.