Asymptotic analysis of widely linear MMSE multiuser detection complex vs real modulation

被引：20

作者：

Lampe, A ^{[1
]}

Breiling, M ^{[1
]}

机构：

[1] Univ Erlangen Nurnberg, D-91058 Erlangen, Germany

来源：

2001 IEEE INFORMATION THEORY WORKSHOP, PROCEEDINGS | 2001年

关键词：

D O I：

10.1109/ITW.2001.955134

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

In this paper, we give the asymptotic signal-to-interference ratio for the so-called widely linear minimum mean-squared error multiuser receiver for transmission of multiple users to a common receiver with DS-CDMA. Observing that widely linear multiuser detection virtually doubles the spreading factor, we show that transmission with real-valued channel symbols can lead to a higher spectral efficiency than with complex-valued channel symbols when each user employs its own complex-valued random spreading sequence.

引用

页码：55 / 57

页数：3

共 9 条

[1]

[Anonymous], 1999, POWER BANDWIDTH EFFI

[2]

Biglieri E, 2000, IEEE T COMMUN, V48, P1882, DOI 10.1109/26.886484

[3] New class of multiuser CDMA receivers based on the minimum mean-output-energy strategy [J].