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Minimize the total power consumption for multiuser video transmission over CDMA wireless network: a two-step approach

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4 Author(s)
Xiaoan Lu ; Electr. & Comput. Eng., Polytech. Univ., New York, NY, USA ; Yao Wang ; E. Erkip ; D. Goodman

We consider a CDMA cell with multiple terminals transmitting video signals. We minimize the sum of signal processing and transmitter power while the received quality at each terminal is guaranteed. The system parameters to be adjusted include video coding bit rate, video compression complexity and transmitter power. Instead of full search in the space of {bit rate, complexity, transmitter power} for all users, we design a two-step fast algorithm to reduce the computation burden in the base station. In our algorithm, the search in the base station is over the space of complexity only. Our results indicate that, for the same class of video users, the one who is closest to the base station compresses at least complexity. This is used to further reduce the computation required by our algorithm.

Published in:

Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005.  (Volume:3 )

Date of Conference:

18-23 March 2005