Power adaptation for BPSK signaling with average and peak power constraints in Rayleigh fading channels

We consider power adaptation strategies for binary phase-shift keying signals in Rayleigh fading channels under the assumption that channel state information is provided at both the transmitter and the receiver. We first derive a closed-form expression for the optimal power adaptation that minimizes...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on communications 2003-11, Vol.51 (11), p.1871-1876
Main Authors: Lee, Ye Hoon, Bar-Ness, Y
Format: Article
Language:English
Subjects:
Adaptation
Binary phase shift keying
Bit error rate
Channel state information
Channels
Delay
Exact solutions
Fading
Inversions
Mathematical analysis
Optimization
Peak to average power ratio
Power control
Rayleigh channels
Signal processing
Strategy
Transmitters
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We consider power adaptation strategies for binary phase-shift keying signals in Rayleigh fading channels under the assumption that channel state information is provided at both the transmitter and the receiver. We first derive a closed-form expression for the optimal power adaptation that minimizes average bit-error rate (BER) subject to average and peak transmission power constraints. Then, we analyze the average BER for channel inversion power adaptation with the same constraints. Our results show that the performance difference between the optimal power adaptation and the channel inversion becomes negligibly small as available average transmission power increases and/or peak-to-average power ratio decreases. We also find that an optimal peak-to-average power ratio exists that minimizes the average BER in the channel inversion scheme.
ISSN:0090-6778
1558-0857
DOI:10.1109/TCOMM.2003.819203