RLS adaptation of widely linear minimum output energy algorithm for DS-CDMA systems

Author

Jae-Jin Jeon

Author_Institution

Sch. of Electr. Eng., Seoul Nat. Univ., South Korea

fYear

2005

fDate

17-20 July 2005

Firstpage

98

Lastpage

102

Abstract

In this paper we propose an adaptive widely linear (WL) minimum output energy (MOE) algorithm to suppress interference in DS-CDMA systems. In contrast to prior work which could handle only real-valued modulation, the proposed algorithm is applicable to both real- and complex-valued modulation utilizing the recursive least-squares (RLS) algorithm for adaptive training of the filter taps. SINR of the conventional MOE algorithms as well as the proposed algorithm are expressed and compared rigorously. Simulation results further confirm the performance comparison.

Keywords

code division multiple access; interference suppression; least squares approximations; modulation; recursive filters; spread spectrum communication; DS-CDMA systems; MOE algorithms; RLS adaptation; adaptive training; complex-valued modulation; filter taps; interference suppression; real-valued modulation; recursive least-squares algorithm; widely linear minimum output energy algorithm; Adaptive filters; Computational complexity; Electrical engineering; Multiaccess communication; Multiple access interference; Multiuser detection; Power engineering and energy; Resonance light scattering; Signal to noise ratio; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications, 2005. advanced industrial conference on telecommunications/service assurance with partial and intermittent resources conference/e-learning on telecommunications workshop. aict/sapir/elete 2005. proceedings

Print_ISBN

0-7695-2388-9

Type

conf

DOI

10.1109/AICT.2005.79

Filename

1517612