Title :
A Power Adjustment Scheme for Improving Outage Probability in a CDMA System
Author :
Kwan, Raymond ; Leung, Cyril
Author_Institution :
Univ. of Bedfordshire, Luton
Abstract :
A statistical power adjustment scheme for systems employing adaptive modulation and coding as well as multicodes is proposed. The scheme adjusts the transmit power level, based on the statistics of the received signal-to-interference ratio, in order to achieve a target bit rate outage probability. It is shown that the required power adjustment can differ greatly depending on the channel parameter values, even though without power adjustment these values support the same average bit rate.
Keywords :
adaptive modulation; code division multiple access; encoding; probability; telecommunication channels; CDMA system; adaptive coding; adaptive modulation; channel parameter; multicodes; outage probability; power adjustment; signal-to-interference ratio; target bit rate outage probability; Adaptive systems; Bit rate; Downlink; Error analysis; Modulation coding; Multiaccess communication; Probability; Quality of service; Throughput; Wireless networks;
Conference_Titel :
Communications and Networking in China, 2007. CHINACOM '07. Second International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1009-5
Electronic_ISBN :
978-1-4244-1009-5
DOI :
10.1109/CHINACOM.2007.4469576
