DocumentCode
2101078
Title
Random user selection method for LPI in multiuser MISO-OFDMA system
Author
Bo Wu ; Jianxun Zhao ; Wenyu Luo
Author_Institution
Zhongzhou Univ., Zhengzhou, China
fYear
2012
fDate
9-11 Nov. 2012
Firstpage
78
Lastpage
81
Abstract
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 attacker´s 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.
Keywords
OFDM modulation; frequency division multiple access; probability; telecommunication security; LPI; low probability of interception; multiuser MISO-OFDMA system; physical-layer security method; random user selection method; wireless security; beamforming; low probability of interception (LPI); physical-layer security; random user selection;
fLanguage
English
Publisher
ieee
Conference_Titel
Communication Technology (ICCT), 2012 IEEE 14th International Conference on
Conference_Location
Chengdu
Print_ISBN
978-1-4673-2100-6
Type
conf
DOI
10.1109/ICCT.2012.6511192
Filename
6511192
Link To Document