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为了提高无线传输的安全与可靠性折中性能,提出了一种基于联合干扰与用户的调度机制.首先,在传输时隙中,具有最大瞬时信道容量的用户节点会被选择与基站进行数据传输;然后,当用户节点与基站进行数据传输时,干扰节点会被用于发送人工噪声信号,以干扰窃听节点窃听用户与基站间的数据传输.仿真结果表明,增加用户数目可以提高所提出机制的安全与可靠性折中性能.此外,与传统的轮询调度及纯粹的用户调度这2种机制相比,该机制能够取得更好的安全与可靠性折中性能,尤其是在主信道与窃听信道增益比较低时,该机制还能够确保安全传输.
In order to improve the compromise performance of security and reliability of wireless transmission, a scheduling mechanism based on joint jamming and user is proposed.Firstly, in the transmission time slot, the user node with the largest instantaneous channel capacity will be selected for data transmission with the base station When the user node and the base station transmit data, the interference node will be used to send artificial noise signal to intercept the eavesdropping node to intercept the data transmission between the user and the base station. Simulation results show that increasing the number of users can improve the proposed mechanism Security and reliability compromise performance.In addition, compared with the traditional polling scheduling and pure user scheduling mechanism of these two mechanisms, the mechanism can achieve better compromise between safety and reliability performance, especially in the main channel and eavesdropping When the channel gain is low, the mechanism also ensures secure transmission.