Title :
Half-symbol BPSK-modulated multicarrier system using parallel combinatory code
Author :
Hou, Yafei ; Hase, Tomohiro
Author_Institution :
Res. Center of Inf. & Commun. Syst., Ryukoku Univ., Otsu, Japan
Abstract :
This paper introduces a novel multicarrier system called the BPSK modulated parallel combinatory / half-symbol multicarrier modulation (PC/HS-MCM) system by combining the BPSK modulated HS-MCM system and the parallel combinatory code. The proposed system can achieve twice bandwidth efficiency (BWE) than that of the BPSK modulated PC-OFDM system by sending a half time-domain BPSK-modulated PC-OFDM waveform. We propose two types of demodulation algorithm for this system, that is, orthogonality demodulation and M-algorithm demodulation. Orthogonality demodulation can recover the orthogonality between the subcarriers with 3 dB BER performance deterioration. The M-algorithm demodulation can realize a BER performance improvement with a moderate computational complexity.
Keywords :
OFDM modulation; computational complexity; error statistics; phase shift keying; BER performance deterioration; HS-MCM system; M- algorithm demodulation; PC-OFDM system; computational complexity; half-symbol BPSK-modulated multicarrier system; half-symbol multicarrier modulation; orthogonality demodulation; parallel combinatory code; AWGN channels; Bandwidth; Binary phase shift keying; Bit error rate; Demodulation; Modulation coding; Multicarrier code division multiple access; OFDM modulation; Time domain analysis; Transmitters;
Conference_Titel :
Wireless and Optical Communications Conference (WOCC), 2010 19th Annual
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-7597-1
DOI :
10.1109/WOCC.2010.5510663
