Tracking and transient performance of code-constrained blind adaptive MUD´s

Author

Whitehead, J. ; Takawira, F.

Author_Institution

Sch. of Electr., Electron. & Comput. Eng., Kwa-Zulu Natal Univ., Durban, South Africa

Volume

5

fYear

2004

fDate

20-24 June 2004

Firstpage

2600

Abstract

This paper derives the closed form expressions for the excess mean square error (EMSE) of code constrained blind adaptive multiuser detectors (MUD) in a non-stationary channel, using the feedback approach. The tracking performance of those algorithms is thus quantified. Closed form expressions are derived to quantify the transient performance of the adaptive algorithms. It is shown that the exact time evolution of the signal to interference plus noise ratio (SINR) may be predicted from initialization to steady-state. The accuracy of the analysis is confirmed via simulation.

Keywords

adaptive codes; channel coding; code division multiple access; mean square error methods; multiuser detection; radiofrequency interference; spread spectrum communication; tracking; transient analysis; DS-CDMA; closed form expressions; code-constrained blind adaptive MUD; direct-sequence code-division multiple access; excess mean square error; feedback approach; multiple access interference; multiuser detectors; nonstationary channel; signal to interference plus noise ratio; tracking performance; transient performance; AWGN; Feedback; Interference constraints; Mean square error methods; Multiaccess communication; Multiple access interference; Multiuser detection; Performance analysis; Signal processing algorithms; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2004 IEEE International Conference on

Print_ISBN

0-7803-8533-0

Type

conf

DOI

10.1109/ICC.2004.1313002

Filename

1313002