Finite-sample performance analysis of widely linear multiuser receivers for DS-CDMA systems

被引：15

作者：

Cacciapuoti, Angela Sara ^{[1
]}

Gelli, Giacinto ^{[1
]}

Paura, Luigi ^{[1
]}

Verde, Francesco ^{[1
]}

机构：

[1] Univ Naples Federico II, Dipartimento Ingn Elettron & Telecomunicaz, I-80125 Naples, Italy

来源：

IEEE TRANSACTIONS ON SIGNAL PROCESSING | 2008年 / 56卷 / 04期

关键词：

direct-sequence code-division multiple-access (DS-CDMA) systems; linear and widely linear receiving techniques; multiuser detection; performance analysis; proper and improper random processes;

D O I：

10.1109/TSP.2007.908937

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 tackles the theoretical performance analysis of widely linear (WL) multiuser receivers for direct-sequence code-division multiple-access (DS-CDMA) systems, as well as their comparison with conventional linear (L) ones. In particular, receivers based on the minimum output-energy (MOE) criterion are considered, since they offer a good tradeoff between performance and complexity and, moreover, lend to some simplifications in the analysis. After comparing the ideal signal-to-interference-plus-noise-ratio (SINR) performances of the WL-MOE and L-MOE receivers, the paper establishes finite-sample performance results for two typical data-estimated implementations. Specifically, by adopting a first-order perturbative approach, the SINR degradation of the data-estimated WL-MOE receivers is accurately evaluated and compared with that of its linear counterpart. Simulation results are provided to validate and complement the theoretical analysis.

引用

页码：1572 / 1588

页数：17

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