BER performance of 2-D-RAKE receivers with power control error in Nakagami fading channels

Author

Huang, Kaizhi ; Wang, Jing ; Wang, Youzheng ; Chen, Guoan

Author_Institution

State. Key Lab. on Microwave & Digital Commun., Tsinghua Univ., Beijing, China

Volume

1

fYear

2002

fDate

29 June-1 July 2002

Firstpage

399

Abstract

It is well known that power control is critical in CDMA mobile systems and the power control error (PCE) exists in spite of power control methods being used. In this paper, the closed-form expressions of signal-to-interference-plus-noise ratio (SINR) and the average bit error rate (BER) are derived for a two-dimensional (2-D)-RAKE receiver with imperfect power control in a frequency-selective Nakagami fading channel.. The combined impact of PCE, multipath Nakagami fading, spatial and temporal diversity order, and multiple-access interference on the system performance has been analyzed for all kinds of fading environments. The simulation results indicate that the BER performance degrade due to PCE. But increasing spatial and temporal diversity order can possibly compensate for the performance loss when PCE is not very serious. The exact performance improvement due to space-time processing varies with the PCE and the fading environment.

Keywords

code division multiple access; diversity reception; error statistics; fading channels; mobile radio; power control; radio receivers; radiofrequency interference; telecommunication control; 2D-RAKE receivers; BER performance; CDMA mobile radio systems; Nakagami fading channels; SINR; average bit error rate; closed-form expressions; frequency-selective fading channel; imperfect power control; multipath fading; multiple-access interference; power control error; signal-to-interference-plus-noise ratio; simulation results; space-time processing; spatial diversity; temporal diversity; Bit error rate; Closed-form solution; Error correction; Fading; Frequency; Multiaccess communication; Multiple access interference; Power control; Signal to noise ratio; System performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on

Print_ISBN

0-7803-7547-5

Type

conf

DOI

10.1109/ICCCAS.2002.1180647

Filename

1180647