Title :
Power control for packet-based wireless communication systems
Author :
Chang, Min-Kuan ; Chang-Su Lim ; Kuo, C. C Jay
Author_Institution :
Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
A power control scheme for packet-based wireless communication systems is proposed in this paper. The proposed power control scheme aims at minimizing the total number of transmissions that a packet needs before it is received successfully over a Rayleigh fading channel subject to two constraints. One is that the transmission power should be greater than zero. The other is imposed by the constraint on the total transmission power at the base station. We use the augmented Lagrangian multiplier method to solve this problem and provide a theoretical solution. The simulation results show that, with the proposed power control scheme, the number of re-transmission can be reduced and the delay of a packet wasted in the channel can be decreased as well.
Keywords :
Rayleigh channels; code division multiple access; delays; packet radio networks; power control; telecommunication congestion control; telecommunication network reliability; ARQ; BPSK-modulated system; BPSK-spread system; Rayleigh fading channel; W-CDMA; augmented Lagrangian multiplier method; base station; delay decrease; packet-based wireless communication systems; power transmission control; retransmission reduction; transmission minimization; AWGN; Algorithm design and analysis; Automatic repeat request; Delay; Fading; Lagrangian functions; Multiaccess communication; Power control; Streaming media; Wireless communication;
Conference_Titel :
Wireless Communications and Networking, 2003. WCNC 2003. 2003 IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-7700-1
DOI :
10.1109/WCNC.2003.1200407
