Title :
Performance of coded OFDM with higher modulation schemes
Author :
Fernando, W.A.C. ; Rajatheva, R.M.A.P. ; Ahmed, K.M.
Author_Institution :
Telecommun. Program, Asian Inst. of Technol., Bangkok, Thailand
Abstract :
Coded orthogonal frequency division multiplexing (COFDM) is a robust technique in fading environments. In this paper, higher modulation schemes are considered with OFDM for a Rician fading channel. Here, convolutional coding (CC) and trellis coded modulation (TCM) are combined with OFDM. Bit error rate (BER) performances are analyzed with L and Ka frequency bands. Trellis coded OFDM (TCM-OFDM) gives a better performance compared to convolutional coded OFDM (CC-OFDM) with a lower trellis complexity. And also the performance does not depend significantly on the frequency band
Keywords :
OFDM modulation; Rician channels; convolutional codes; error statistics; trellis coded modulation; BER performance; CC-OFDM; COFDM; Ka frequency band; L frequency band; OFDM; Rician fading channel; TCM; TCM-OFDM; bit error rate; coded OFDM; coded orthogonal frequency division multiplexing; convolutional coded OFDM; convolutional coding; fading environments; frequency band; higher modulation schemes; performance; trellis coded OFDM; trellis coded modulation; trellis complexity; Bit error rate; Convolution; Convolutional codes; Decoding; Demodulation; Fading; Modulation coding; OFDM modulation; Rician channels; Robustness;
Conference_Titel :
Communication Technology Proceedings, 1998. ICCT '98. 1998 International Conference on
Conference_Location :
Beijing
Print_ISBN :
7-80090-827-5
DOI :
10.1109/ICCT.1998.741058
