Paper Info
Title
Joint Optimization of Adaptive Modulation and Coding, Power Control and Packet Retransmission over Block Fading Channels
Abstract
Adaptive modulation and coding (AMC) and automatic repeat request (ARQ) protocol are powerful techniques for improving the spectral efficiency (SE) or the error performance in wireless packet networks over fading channels. In this paper, we first consider a discrete-rate M-QAM based AMC scheme and propose a variable power transmission scheme for transmission of packets over block-fading wireless channels. Considering the error-correcting capability of the truncated-ARQ, which depends on the maximum number of retransmissions (Nr), we then optimize the AMC and power control schemes that guarantee the required packet loss rate (PLR) performance while satisfying an average transmit power constraint. Numerical results reveal that in wireless packet systems with limited packet length, the proposed link adaptation algorithm improves the system performance in terms of the SE and the PLR However, this improvement depends on the target PLR and Nr When the target PLR is sufficiently small, this improvement will be observed in terms of the SE for small Np however, in the larger target PLR, the improvement will only be observed in terms of the achievable PLR.
Year
DOI
Venue
2007
10.1109/ITWITWN.2007.4318033
Solstrand
Keywords
Field
DocType
adaptive modulation,automatic repeat request,error correction codes,fading channels,optimisation,power control,wireless channels,automatic repeat request protocol,block fading channels,coding,error-correcting capability,joint optimization,packet loss rate,packet retransmission,quality of service,wireless packet networks,fading,adaptive control,power transmission,fading channel,constraint optimization,wireless application protocol,error correction,link adaptation,spectral efficiency,system performance,satisfiability
Link adaptation,Computer science,Retransmission,Fading,Network packet,Power control,Computer network,Theoretical computer science,Electronic engineering,Error detection and correction,Automatic repeat request,Spectral efficiency
Conference
ISBN
Citations 
PageRank 
978-1-4244-1200-6
6
0.63
References 
Authors
8
2
Name
Order
Citations
PageRank
Jalil Seifali Harsini1764.90
Lahouti, F.213311.22