Transmit power optimization for video transmission over slowly-varying Rayleigh-fading channels in CDMA systems

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An optimum transmit power management scheme is proposed for wireless video service in code-division multiple-access systems. The scheme minimizes the transmit power subject to the constraint on the distortion resulted from the loss of each packet and the error propagation effect caused by the motion compensation. It implicitly controls the target bit-error rate (BER) of the video packet according to the importance of the packet. The more important the packet is, the more securely it is transmitted over noisy channel. Furthermore, the scheme adjusts the target BER as if the water filling concept is applied to the problem of minimizing the transmit power. The simulation results show that the proposed scheme considerably outperforms the conventional schemes.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2004-09
Language
English
Article Type
Article
Keywords

WIRELESS CHANNELS; MOBILE ENVIRONMENTS; IMAGE TRANSMISSION; MODE SELECTION; MANAGEMENT; SPECTRUM; COMMUNICATION; ALLOCATION; SERVICE; SCHEMES

Citation

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, v.3, pp.1411 - 1415

ISSN
1536-1276
DOI
10.1109/TWC.2004.833468
URI
http://hdl.handle.net/10203/5468
Appears in Collection
EE-Journal Papers(저널논문)
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