Title :
Study of LDPC Coded Rotational OFDM System
Author :
Sun, Zengyou ; Wang, Qianchun ; Ren, Ju
Author_Institution :
Sch. of Inf. Eng., Northeast Dianli Univ., Jilin, China
Abstract :
The method of LDPC coded rotational modulation in OFDM systems is presented in this paper. This method obtains more coding gain modulation compared to traditional coded modulation techniques in fading channels. The results of simulation show that coded modulation gain of rotation modulation is more apparent than that of non-rotation modulation, and it is more apparent with high bit-rate. In addition, the optimal angle of rotation modulation is given.
Keywords :
OFDM modulation; fading channels; parity check codes; LDPC coded rotational modulation; OFDM system; coding gain modulation; fading channels; AWGN; Cities and towns; Demodulation; Equations; Fading; Maximum likelihood decoding; Modulation coding; OFDM modulation; Parity check codes; Sparse matrices; Channel; LDPC; OFDM; QPSK; Rotational Modulation;
Conference_Titel :
Wearable Computing Systems (APWCS), 2010 Asia-Pacific Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4244-6467-8
Electronic_ISBN :
978-1-4244-6468-5
DOI :
10.1109/APWCS.2010.65
