NDLI: Performance of LDPC Coded AOFDM Under Frequency-Selective Fading Channel

Content Provider	IEEE Xplore Digital Library
Author	Zhou Mingyu Li Lihua Wen Na Zhang Ping
Copyright Year	2006
Description	Author affiliation: Wireless Technol. Innovation Inst., Beijing Univ. of Posts & Telecommun. (Zhou Mingyu; Li Lihua; Wen Na; Zhang Ping)
Abstract	In this paper, LDPC code is combined with adaptive OFDM. Code rate of LDPC is fixed and modulation mode of sub-carriers can vary according to CQI. Throughput analysis of the scheme under frequency-selective fading channel and theory of sub-band based LDPC coded AOFDM is given. Computer simulation under 12-tap TU fading channel was carried out. Results show that the LDPC coded AOFDM scheme exhibits BER performance quite close to that with fixed QPSK modulation due to existence of LDPC, meanwhile brings much higher throughput than non-adaptive schemes because of adaptation. The sub-band based adaptation has a little degradation in throughput, but reduces signaling cost greatly. LDPC coded AOFDM guarantees system reliability and improves throughput a lot
Sponsorship	IEEE Circuits and Syst. Soc. HKUST UESTC City Univ. of Hong Kong
Starting Page	861
Ending Page	865
File Size	5191379
Page Count	5
File Format	PDF
ISBN	0780395840
DOI	10.1109/ICCCAS.2006.284788
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-06-25
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Degradation Costs Computer simulation Bit error rate Frequency-selective fading channels Throughput Parity check codes OFDM modulation Modulation coding Quadrature phase shift keying
Content Type	Text
Resource Type	Article

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