Performance of the MIMO PRCP-OFDM System with Orthogonal Cyclic-Shift Sequences

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題名:	Performance of the MIMO PRCP-OFDM System with Orthogonal Cyclic-Shift Sequences
作者:	Chern, Shiunn-jang
貢獻者:	淡江大學電機工程學系
關鍵詞:	MIMO-OFDM;space-time encoder;redundant sequence;orthogonal codes;cyclic-postfix;pilot;channel estimation
日期:	2012-11-04
上傳時間:	2012-11-22 11:46:23 (UTC+8)
出版者:	IEEE
摘要:	Unlike the conventional Pseudo-Random Posfix (PRP) orthogonal frequency division multiplexing (OFDM) or PRP-OFDM approach, recently we proposed a new transceiver framework for OFDM system, named as the Pseudo Random Cyclic Postfix (PRCP)-OFDM, with complementary codes (CC). Also, it wa MIMO PRCP-OFDM system the performance is investis extended to the multiple-input multiple-output (MIMO) antennas system, equipped with the space-time block code (SP-BC). In this paper, the cyclic postfix (CP) sequence is implemented with the Orthogonal Cyclic-shift (OCS) sequences to substitute the CC. By exploring the useful property of OCS sequences, convolved with channel information, at receiver side it can be employed to perform semi-blind channel estimation without incurring the signal interference to the desired postfix sequences. It is affected only by the background noise, and yields achieving better system performance. To demonstrate the merits of proposed ST-BCgated and further compared with the ST-BC MIMO PRP-OFDM system and ST-BC MIMO CP-OFDM system with optimal training pilots, under various channel environments.
顯示於類別:	[電機工程學系暨研究所] 會議論文

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