Uplink performance of MC-CDMA/TDD systems with pre-compensation

Author

Zheng, Kan ; Huang, Lin ; Wang, Wenbo ; Zhang, Ping

Author_Institution

Sch. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun., China

Volume

3

fYear

2004

fDate

17-19 May 2004

Firstpage

1381

Abstract

The paper presents a novel power-limited pre-compensation method in MC-CDMA/TDD systems, which can avoid pilot insertion on the uplink and increase the spectral/power efficiency. To keep the transmission power constant, only the phase of the signal is predistorted before transmission at the mobile station´s transmitter while the amplitude estimation and compensation of the received signal are performed at the base station´s receiver on the uplink. The performance degradation due to the time varying channel is also included in our analysis. Simulation results show good performance with the proposed pre-compensation method and our conclusion is given finally.

Keywords

code division multiple access; compensation; mobile radio; parameter estimation; radio receivers; radio transmitters; time division multiplexing; time-varying channels; MC-CDMA/TDD system uplink; amplitude estimation; base station receiver; mobile station transmitter; phase predistortion; pilot insertion; power efficiency; power-limited pre-compensation method; signal compensation; spectral efficiency; time varying channel; Amplitude estimation; Channel estimation; Degradation; Downlink; Multicarrier code division multiple access; OFDM modulation; Performance analysis; Power engineering and energy; Power system modeling; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th

ISSN

1550-2252

Print_ISBN

0-7803-8255-2

Type

conf

DOI

10.1109/VETECS.2004.1390479

Filename

1390479