Title :
Achievable Rates for Adaptive IR Hybrid ARQ
Author :
Gopalakrishnan, Nandu ; Gelfand, Saul
Author_Institution :
Forward Looking Dept., Alcatel-Lucent Inc., Whippany, NJ
Abstract :
This paper generalizes the information theoretic achievable rate analysis of time (slot length) adaptive and non- adaptive incremental redundancy (IR) hybrid ARQ (HARQ) of earlier works to bandwidth (fixed slot length) or time x bandwidth adaptive IR HARQ systems operating in a block fading channel. It establishes the relationship between the ´sub-packet´ rates and corresponding slot capacities to guarantee arbitrary reliability and conversely the condition for outage.
Keywords :
automatic repeat request; fading channels; achievable rate analysis; adaptive IR; block fading channel; hybrid ARQ; incremental redundancy; information theory; slot length; subpacket rate; AWGN; Automatic repeat request; Bandwidth; Decoding; Diversity reception; Fading; Feedback; Modulation coding; Redundancy; Transmitters;
Conference_Titel :
Sarnoff Symposium, 2008 IEEE
Conference_Location :
Princeton, NJ
Print_ISBN :
978-1-4244-1843-5
DOI :
10.1109/SARNOF.2008.4520071
