EAVESDROPPING ON DS-CDMA SIGNAL

被引：0
作者：
Li, Ming [1 ]
Ti, Guangyu [1 ]
Liu, Qian [2 ]
机构：
[1] Dalian Univ Technol, Sch Informat & Commun Engn, Dalian 116024, Liaoning, Peoples R China
[2] Univ New York Buffalo, Dept Comp Sci & Engn, Buffalo, NY USA
来源：
2015 IEEE CHINA SUMMIT & INTERNATIONAL CONFERENCE ON SIGNAL AND INFORMATION PROCESSING | 2015年
关键词：
Blind detection; blind signal extraction; direct-sequence code-division multiple-access (DS-CDMA); eavesdropping; least squares; INFORMATION THEORETIC CRITERIA; INTERFERENCE CANCELLATION; MULTIUSER DETECTION; CODED CDMA; BLIND; SEPARATION; CHANNEL; ARRAY;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper considers the problem of signal eavesdropping in direct-sequence code-division multiple-access (DS-CDMA) channels. We aim at extracting the information data symbols of all concurrent users in a DS-CDMA system without the knowledge of spreading sequences (signature waveforms), and channel state information (CSI) as well as no availability of pilot signaling (training sequence). We first develop an iterative least-squares (ILS) core procedure to blindly extract the information symbols of the concurrent users. Then, enhanced ILS (E-ILS), a procedure described herein in detail that is based on statistical analysis of repeated independent ILS processing of observation signal, is seen to offer most effective signal eavesdropping. Simulation studies show that the proposed E-ILS signal eavesdropping algorithm can achieve probability of error close to what may be attained with known spreading sequences and CSI.
引用
收藏
页码：933 / 937
页数：5
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