Title :
Hybrid ARQ Scheme with Intercarrier Interference Mitigation for OFDM Systems
Author :
Juang, Rong-Terng ; Lin, Kun-Yi ; Ting, Pangan ; Lin, Hsin-Piao ; Lin, Ding-Bing
Author_Institution :
Ind. Technol. Res. Inst., Hsinchu
Abstract :
Based on the principle of spread spectrum systems, this paper presents a hybrid automatic-repeat-request (HARQ) scheme with the mitigation of intercarrier interference (ICI) by orthogonally encoding transmitted signals on subcarriers for orthogonal frequency division multiplexing (OFDM) systems. The proposed scheme not only increases the signal-to-noise ratio (SNR) but also reduces the ICI. Simulations demonstrates that it outperforms the conventional Chase Combining HARQ in terms of uncoded bit error rate (BER) with nearly no complexity increase.
Keywords :
OFDM modulation; automatic repeat request; error statistics; intercarrier interference; interference suppression; modulation coding; spread spectrum communication; BER; OFDM system; automatic-repeat-request; encoding; hybrid ARQ scheme; intercarrier interference mitigation; orthogonal frequency division multiplexing; spread spectrum system; uncoded bit error rate; Automatic repeat request; Bit error rate; Computer networks; Costs; Decoding; Interference; Mobile computing; Negative feedback; OFDM; Signal to noise ratio; HARQ; ICI Cancellation; OFDM;
Conference_Titel :
Networking and Communications, 2008. WIMOB '08. IEEE International Conference on Wireless and Mobile Computing,
Conference_Location :
Avignon
Print_ISBN :
978-0-7695-3393-3
Electronic_ISBN :
978-0-7695-3393-3
DOI :
10.1109/WiMob.2008.44
