TY - GEN
T1 - Power minimization under real-time source distortion constraints in wireless networks
AU - Kwasinski, Andres
AU - Han, Zhu
AU - Ray Liu, K. J.
AU - Farvardin, Nariman
N1 - Publisher Copyright:
© 2003 IEEE.
PY - 2003
Y1 - 2003
N2 - In multiple access wireless networks with co-channel interference, allocating resources such as transmitted powers and source rates is a task critical to improve performance. In this paper, we introduce a new technique aimed at minimizing the overall transmitted power subject to constraints on the incurred source distortion. The technique is based on the use of real-time source codecs with externally adaptable output rate and rate compatible punctured convolutional (RCPC) channel encoders. We develop an adaptive algorithm to find the optimal power and source rate allocation to the different users according to their channel conditions and under distortion constraints. We present simulation results to show that it is possible to reduce the overall transmitted power significantly with a relatively small distortion increases for some users, and while keeping the network average distortion unchanged.
AB - In multiple access wireless networks with co-channel interference, allocating resources such as transmitted powers and source rates is a task critical to improve performance. In this paper, we introduce a new technique aimed at minimizing the overall transmitted power subject to constraints on the incurred source distortion. The technique is based on the use of real-time source codecs with externally adaptable output rate and rate compatible punctured convolutional (RCPC) channel encoders. We develop an adaptive algorithm to find the optimal power and source rate allocation to the different users according to their channel conditions and under distortion constraints. We present simulation results to show that it is possible to reduce the overall transmitted power significantly with a relatively small distortion increases for some users, and while keeping the network average distortion unchanged.
UR - http://www.scopus.com/inward/record.url?scp=33745500227&partnerID=8YFLogxK
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U2 - 10.1109/WCNC.2003.1200405
DO - 10.1109/WCNC.2003.1200405
M3 - Conference contribution
AN - SCOPUS:33745500227
T3 - IEEE Wireless Communications and Networking Conference, WCNC
SP - 532
EP - 536
BT - 2003 IEEE Wireless Communications and Networking Conference, WCNC 2003
T2 - 2003 IEEE Wireless Communications and Networking Conference: The Dawn of Pervasive Communication, WCNC 2003
Y2 - 16 March 2003 through 20 March 2003
ER -