A new medium access scheme for multimedia service in CDMA systems

Author

Kim, Il-Min ; Kim, Hyung-Myung

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea

Volume

3

fYear

2000

fDate

2000

Firstpage

2207

Abstract

A new medium access control (MAC) scheme has been proposed for video service in CDMA systems. We introduce suitable metrics first for video quality rating such as average peak signal to noise ratio (PSNR) and distortion variation. Then, based on these criteria, the effective MAC scheme is obtained for the real video service by taking image characteristics into consideration and modeling the distortion propagation effect due to motion compensation. Unlike the conventional schemes, the new scheme varies the bit error probability (BEP) with the changes of image characteristics. Simulation results show that the proposed scheme utilizes bandwidth more efficiently than conventional schemes do

Keywords

code division multiple access; error statistics; motion compensation; multimedia communication; visual communication; CDMA systems; MAC scheme; PSNR; average peak signal to noise ratio; bit error probability; distortion propagation effect; distortion variation; image characteristics; medium access control scheme; motion compensation; multimedia service; simulation results; video quality rating; video service; Algorithm design and analysis; Bit rate; Communication standards; Electronic mail; Error probability; Multiaccess communication; Multimedia systems; PSNR; Quality of service; Traffic control;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st

Conference_Location

Tokyo

ISSN

1090-3038

Print_ISBN

0-7803-5718-3

Type

conf

DOI

10.1109/VETECS.2000.851664

Filename

851664