Power & backlog sensitive power control for wireless data in CDMA mobile systems under multipath environments

Author

Wang, Qi ; Chin, Francois ; Lei, Zhongding

Author_Institution

Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore

Volume

5

fYear

2004

fDate

26-29 Sept. 2004

Firstpage

3065

Abstract

We introduce a power control scheme for wireless data in a direct sequence code-division multiple-access radio mobile system under multipath environments. The motivation for this study is twofold: limiting inter-user interference to increase the system throughput; reducing power consumption to prolong battery life. We utilize the delay insensitive property of the data traffic to control automatically the transmission base on the channel quality. The proposal provides a tradeoff between the transmit power and its associated cost. Simulation results demonstrate the efficiency of the proposed algorithm, in comparison with other power control algorithms.

Keywords

cellular radio; code division multiple access; data communication; multipath channels; power consumption; power control; radiofrequency interference; spread spectrum communication; telecommunication control; telecommunication traffic; DS-CDMA mobile systems; battery life; cellular environment; channel quality; data traffic; direct sequence code-division multiple-access radio mobile system; interuser interference; multipath environments; power consumption; power control; Automatic control; Batteries; Delay; Energy consumption; Interference; Multiaccess communication; Power control; Throughput; Traffic control; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th

ISSN

1090-3038

Print_ISBN

0-7803-8521-7

Type

conf

DOI

10.1109/VETECF.2004.1404625

Filename

1404625