Title :
A novel adaptive type-II HARQ scheme for OFDM systems
Author :
Cheng, Jinxia ; Zhou, Shidong ; Yao, Yan
Author_Institution :
State Key Lab. on Microwave & Digital Commun., Tsinghua Univ., Beijing
Abstract :
This paper presents a novel adaptive type-II hybrid automatic repeat request (HARQ) scheme combined with interleaving rearrangement and constellation rearrangement, which is applicable for high data rate orthogonal frequency division multiplexing (OFDM) systems. The proposed scheme utilizes the channel state information and rearranges both bits and symbols at each retransmission. Simulation results show that the proposed scheme improves system performance significantly
Keywords :
OFDM modulation; adaptive modulation; automatic repeat request; fading channels; OFDM system; adaptive type-II HARQ scheme; channel state information; constellation rearrangement; hybrid automatic repeat request; interleaving rearrangement; orthogonal frequency division multiplexing; Automatic repeat request; Channel state information; Fading; Forward error correction; Interleaved codes; OFDM; Protocols; Radio transmitters; State estimation; State feedback; A; M; adapt e nterlea n; constellation rearrangement;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on
Conference_Location :
Berlin
Print_ISBN :
9.7838007291e+012
DOI :
10.1109/PIMRC.2005.1651857
