Initial Code Acquisition in the Cooperative Noncoherent MIMO DS-CDMA Downlink

被引：4
作者：
Won, SeungHwan [1 ]
Lee, Kyungchun [2 ]
Hanzo, Lajos [1 ]
机构：
[1] Univ Southampton, Sch Elect & Comp Sci, Southampton SO17 1BJ, Hants, England
[2] Samsung Elect, Suwon 442742, South Korea
来源：
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2009年 / 58卷 / 03期
基金：
英国工程与自然科学研究理事会;
关键词：
Code acquisition; cooperative; direct-sequence code-division multiple-access (DS-CDMA); noncoherent (NC) MIMO system; relay station (RS); WIRELESS; PERFORMANCE; SIGNALS; DIVERSITY; NETWORKS; SYSTEMS;
D O I：
10.1109/TVT.2008.929218
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：
In this paper, we investigate a realistic code-acquisition-assisted cooperative noncoherent (NC) multiple-input-multiple-output (MIMO) direct-sequence code-division multiple-access (DS-CDMA) downlink scenario, when communicating over uncorrelated single- and multipath Rayleigh channels. The probabilities of correct detection and false alarm have analytically been derived. Furthermore, a mean acquisition time (MAT) formula is provided for the cooperative transmission scenario considered. The associated MAT performance trends are characterized as a function of both the number of relay stations (RSs) and the number of receive antennas and link imbalance. As opposed to the classic scenario of having colocated MIMO elements, our findings suggest that employing distributed MIMO elements acting as RSs combined with multiple receive antennas leads to an improved MAT performance.
引用
收藏
页码：1387 / 1395
页数：9
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