Title :
Efficient power management schemes for video service in CDMA systems
Author :
Kim, Il-Min ; Kim, Hyung-Myung
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea
fDate :
6/22/2000 12:00:00 AM
Abstract :
Two efficient power management schemes are proposed for the H.263 video service in code division multiple access (CDMA) systems. In the first scheme the transmitted power is adjusted so that the error probability of every group of blocks (GOB) will be kept unchanged. In the other scheme the power is adjusted so that the error probability of each GOB will be inversely proportional to the amount of distortion caused by the loss of the GOB. Simulation results show that the proposed schemes considerably outperform the conventional scheme
Keywords :
code division multiple access; data compression; error statistics; power control; telecommunication control; video coding; visual communication; BER; CDMA systems; H.263 video service; bit error rate; code division multiple access systems; distortion; error probability; group of blocks; power management schemes;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000812
