Jointly channel estimation/equalization and subtraction of PN-ISI for TDS-OFDM systems over frequency-selective fading channels

Yih Min Chen, Quei Ping Liao

研究成果: 書貢獻/報告類型會議論文篇章同行評審

3 引文 斯高帕斯(Scopus)

摘要

PN-sequence padding scheme has been proposed in TDS-OFDM systems instead of the cyclic prefix scheme in the traditional CP-OFDM systems. The PN-sequence, padded between normal OFDM symbols, has dual functions for assisting in channel estimation and preventing inter-symbol-interference between normal OFDM symbols over frequency-selective fading channel. However there are lSI to the normal OFDM symbols caused by the padding PN-sequence, referred to as PN-ISI. Therefore it is crucial to remove the PN-ISI in TDS-OFDM systems. In this paper, we propose a scheme which performs the channel estimation/equalization and the subtraction of PN-ISI jointly. Comparing to the normal scheme which performs the PN-ISI removal after channel estimation without iteration, the performance of the proposed scheme is shown to be superior with simulations.

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主出版物標題3rd International Conference on Communications and Networking in China, ChinaCom 2008
頁面657-662
頁數6
DOIs
出版狀態已出版 - 2008
事件3rd International Conference on Communications and Networking in China, ChinaCom 2008 - Hangzhou, China
持續時間: 25 8月 200827 8月 2008

出版系列

名字3rd International Conference on Communications and Networking in China, ChinaCom 2008

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???event.eventtypes.event.conference???3rd International Conference on Communications and Networking in China, ChinaCom 2008
國家/地區China
城市Hangzhou
期間25/08/0827/08/08

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