DocumentCode
524730
Title
On efficiency of link adaptation mechanisms in H/ARQ systems
Author
Pilipovic, Milos ; Samardzija, Dragan
Author_Institution
Comput. & Control Dept., Univ. of Novi Sad, Novi Sad, Serbia
fYear
2010
fDate
24-28 May 2010
Firstpage
544
Lastpage
548
Abstract
In this study we analyze the synergy effects among ARQ and Hybrid ARQ with rate-adaptive mechanisms. We present several coding and decoding schemes and link adaptation techniques for rate-adaptive transmission, designed to combat noise, and we discuss their performance. We describe approaches for searching and selecting the best modulation and coding scheme (MCS) based on channel quality information (CQI). Hybrid ARQ using convolutional and punctured convolutional codes is used with variable re-transmission packet size and code rate according to CQI. Attractive simulation results are issued and they may be used as a basis for performance trade-off.
Keywords
AWGN; Automatic repeat request; Bit error rate; Convolutional codes; Cyclic redundancy check; Decoding; Error correction; Forward error correction; Modulation coding; Quality of service;
fLanguage
English
Publisher
ieee
Conference_Titel
MIPRO, 2010 Proceedings of the 33rd International Convention
Conference_Location
Opatija, Croatia
Print_ISBN
978-1-4244-7763-0
Type
conf
Filename
5533453
Link To Document