Title :
Adaptive rate and power DS/CDMA communications in fading channels
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
Abstract :
We investigate the average information rates attained by adapting the transmit power and the information rate relative to channel variations in code division multiple access communication systems. Our results show that the rate adaptation provides a higher average information rate than the power adaptation for a given average transmit power, and the rate increase when using rate adaptation is more significant for channels with a faster decaying multipath intensity profile and weaker line-of-sight component
Keywords :
adaptive systems; cellular radio; code division multiple access; fading channels; multipath channels; radiofrequency interference; spread spectrum communication; adaptive rate; average information rates; channel variations; code division multiple access communication systems; fading channels; line-of-sight component; multipath intensity profile; power DS/CDMA communications; power adaptation; transmit power; Delay; Fading; Information rates; Interference; Multiaccess communication; Nakagami distribution; Radio link; Radio transmitters; Random variables; Rayleigh channels;
Conference_Titel :
Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5668-3
DOI :
10.1109/WCNC.1999.797001
