Title :
Forward error correction codes to reduce intercarrier interference in OFDM
Author :
Sathananathan, K. ; Tellambura, C.
Author_Institution :
Sch. of Comput. Sci. & Software Eng., Monash Univ., Clayton, Vic., Australia
Abstract :
Orthogonal Frequency Division Multiplexing (OFDM) is sensitive to the carrier frequency offset (CFO), which destroys orthogonality and causes intercarrier interference (ICI). Recently, a simple rate 1/2 repeat coding scheme has been shown to be effective in suppressing ICI. That such a simple coding scheme is so effective raises an interesting question. Can more powerful error correcting codes with less redundancy be used just as effectively for the same purpose? In this paper, we propose the use of rate-compatible punctured convolutional (RCPC) codes
Keywords :
OFDM modulation; convolutional codes; error correction codes; forward error correction; interference suppression; carrier frequency offset; forward error correction code; intercarrier interference; orthogonal frequency division multiplexing; rate 1/2 repeat code; rate-compatible punctured convolutional code; redundancy; Computer science; Convolutional codes; Decoding; Error correction codes; Forward error correction; Frequency estimation; Interference; OFDM; Redundancy; Throughput;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.922300
