教師資料查詢 | 類別: 會議論文 | 教師: 陳巽璋 Shiunn-jang Chern (瀏覽個人網頁)

標題:Semi-blind Channel Estimation Scheme with Bayesian DFE for PRP-OFDM System
學年104
學期1
發表日期2015/11/09
作品名稱Semi-blind Channel Estimation Scheme with Bayesian DFE for PRP-OFDM System
作品名稱(其他語言)
著者Shiunn-Jang Chern; Yun-Kai Bai; Kelvin Kuang -Chi Lee; Richard H.-H. Yang
作品所屬單位
出版者
會議名稱2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)
會議地點Nusa Dua, Bali, Indonesia
摘要This paper presents a novel block-based Bayesian
decision feedback equalization (DFE) receiver for the Pseudo-Random Postfix (PRP) Orthogonal Frequency Division Multiplexing (OFDM) (PRP-OFDM) systems, with semi-blind channel estimation. In conventional PRP-OFDM receiver for semi-blind channel estimation, an order-one statistics of the received signal is developed, for sufficient redundant symbols (PRP). In this paper, we consider the PRP-OFDM system, where
the length of PRP (redundant symbols) is less than the channel order, named as the insufficient PRP-OFDM system. To deal with this problem and maintain reasonable complexity of receiver, first the maximum shortening signal-to-noise-ratio (MSSNR) time-domain equalizer (TEQ) is applied to reduce the effect of inter-block-interference (IBI). After that the block-based
Bayesian DFE equalizer is developed for alleviating the intersymbol interference (ISI), hence to achieve better system performance, in terms of bit-error rate (BER). Computer simulation results verify that the proposed scheme could achieve BER improvement over the conventional block-based equalizers, viz., the linear zero-forcing (ZF) equalizer, non-linear ZF equalizer (with oblique projector) and the minimum mean square
error DFE.
關鍵字PRP-OFDM;redundant symbol;ISI;IBI;block-based DFE;zero-forcing equalizer;Oblique projector;BER
語言英文
收錄於
會議性質國內
校內研討會地點
研討會時間20151109~20151112
通訊作者Shiunn-Jang Chern
國別印尼
公開徵稿
出版型式
出處2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) (IEEE Explorer)
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