Adaptive Semi-blind Channel Estimation for ST-BC MIMO-CDMA Systems with Hybrid User Signature
學年 102
學期 1
發表日期 2013-11-12
作品名稱 Adaptive Semi-blind Channel Estimation for ST-BC MIMO-CDMA Systems with Hybrid User Signature
作品名稱（其他語言）
著者 CHERN, Shiunn-Jang; Huang, Wang-Chih; Yang, Richard Hsin-Hsyong
作品所屬單位 淡江大學電機工程學系
出版者 IEEE Circuits and Systems Society
會議名稱 2013 International Symposium onIntelligent Signal Processing and Communication Systems (ISPACS 2013)
會議地點 Okinawa, Japan
摘要 we extend our previous work to present a new semi-blind transceiver for the direct-sequence code division multiple access (DS-CDMA) system that uses multiple transmit and receive antennas (MIMO) system, equipped with space-time block code (ST-BC). In the transmitter we design a new hybrid augmented user signature (AUS) that composes of the desired user signatures and the prefix/postfix zero-padding sequences with respect to individual transmit-antennas. The hybrid AUS is devised to resolve the phase ambiguity problem which occurs in all blind receivers. At the receiver we propose a Capon-like semiblind two-branch filter bank receiver, based on the linearly constrained constant modulus (LCCM) criterion, followed by the AUS-assisted semi-blind channel estimation and power method for block symbol recovery. This enables us to partially alleviate the effects of inter-block interference (IBI) and the multiple access interference (MAI). In the ST-BC MIMO-CDMA receiver with two-branch filterbank, we build on the generalized sidelobe canceller (GSC) structure with the RLS for implementing the adaptive semi-blind LCCM receiver. Via intense simulations it reveals that our proposed new transceiver has robust performance against the user’s acquisition inaccuracies comparing with current vailable algorithms and to resolve the phase ambiguity problem.
關鍵字 Capon receiver;space-time block code;MIMO;hybrid user signature;zero-padding;GSC-RLS algorthm
語言 en
收錄於 EI
會議性質 國際
校內研討會地點
研討會時間 20131112~20131115
通訊作者 CHERN (陳), Shiunn-Jang (巽璋),
國別 JPN
公開徵稿 Y
出版型式 電子版
出處 Proceeding of 2013 International Symposium onIntelligent Signal Processing and Communication Systems (ISPACS 2013), pp.369-374
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