Random User Selection Method for LPI in Multiuser MISO-OFDMA System

摘要：

　　The problem of wireless security for the downlink of MISO-OFDMA systems operating over a frequency-selective channel is investigated.By exploiting the dimensions provided by multiuser MISO-OFDMA systems for random user selection and beamforming,a novel physical-layer security method is to achieve low probability of interception (LPI),which let the attackers equivalent channel be a random one,is proposed in the paper.Meanwhile,hypothesis testing is used to determine which subcarriers belong to him by any intended user without user selection information.Numerical results have verified the effective-ness.

关键词： physical-layer security random user selection beamforming low probability of interception (LPI)

作者: Bo Wu Wenyu Luo

作者单位: Zhongzhou University Zhengzhou, China National Digital Switching System Engineering &Technological R&D Center Zhengzhou, China

会议类型: 国际会议

会议名称: 2012 IEEE 14th International Conference on Communication Technology(2012年第十四届通信技术国际会议(ICCT 2012))

会议地点: 成都

会议语种:英文

页码: 102-105

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）