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학술대회 Trellis Coded 3-Dimensional OFDM System
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Zijing Zhang, 최은창, 강석근
International Symposium on Communications and Information Technology (ISCIT) 2009, pp.1106-1109
In this paper, the structure of a trellis-coded 3-dimensional orthogonal frequency division multiplexing (3-D OFDM) is proposed and its error performance in additive white Gaussian channel is analyzed. We present the set-partitioning of a 3-D 8-ary constellation for trellis coding. As a result, the trellis-coded 3-D OFDM system has around 6 dB coding gain over an uncoded one when an 8-ary constellation is exploited. And it also has around 3 dB better symbol error probability as compared to the uncoded system when a 4-ary constellation is employed. Thus, the proposed trellis-coded 3-D OFDM may be appropriate for an application in the high-quality wireless communication system for the next generation. ©2009 IEEE.
KSP 제안 키워드
3-dimensional, 8-Ary constellation, Additive white Gaussian noise(AWGN), Coding Gain, Error performance, Gaussian Channel, High-quality, OFDM systems, Orthogonal frequency division Multiplexing(OFDM), Three dimensional(3D), Trellis Coding