Interference suppression capability of linear receivers for band-limited DS/SSMA communications

被引:0
作者
Jeong, YK [1 ]
Cho, JH [1 ]
Lehnert, JS [1 ]
机构
[1] Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN 47907 USA
来源
2002 MILCOM PROCEEDINGS, VOLS 1 AND 2: GLOBAL INFORMATION GRID - ENABLING TRANSFORMATION THROUGH 21ST CENTURY COMMUNICATIONS | 2002年
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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
Interference suppression capabilities of linear receivers for band-limited direct-sequence spread-spectrum multiple-access (DS/SSMA) systems with aperiodic random spreading sequences are considered. First, bounds on the performance of systems with BPSK data symbols and QPSK spreading sequences are derived for fixed matched filter (MF) receivers and adaptive linear receivers. The bounds apply for the case in which the maximum. conditional signal-to-interferen cc ratio is obtained or, equivalently, for the case in which the linear minimum-mean-squared error (MMSE) criterion is used. The bounds are used to examine the dependence of the capability of the linear receivers to suppress multiple-access interference (MAI) on the system excess bandwidth and the profile of multiple-access users.
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页码:1325 / 1329
页数:5
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