NDLI: A low complexity space-time equalizer based on tap-mobile for the diversity system

Content Provider	IEEE Xplore Digital Library
Author	Xiuping Wang Anding Wang Yuyang Qiu Bin Dong
Copyright Year	2008
Description	Author affiliation: Coll. of Stat. & Math., Zhejiang Gongshang Univ., Hangzhou (Yuyang Qiu) \|\| Nokia Hangzhou R&D Center, Hangzhou (Bin Dong) \|\| Coll. of Inf. & Electron., Zhejiang Gongshang Univ., Hangzhou (Xiuping Wang; Anding Wang)
Abstract	A novel space-time tap-mobile equalizer is proposed as a low complexity solution for diversity receiver operating in wireless frequency selective channels with sparse power profiles. Generally the conventional equalizer requires a large number of filter taps to overcome long delay profiles of the channel multi-paths. However, with the efficient algorithm of channel estimation, time delay and amplitude of all the multi-paths have been known so that the new equalizer just only maintains a small subset of nonzero working taps. As a result, it not only eliminates the noise accumulation effects of the idle taps but also reduces hardware implementation complexity effectively. Moreover this paperpsilas method provides the real-time tracing of variable nonzero tapspsila position fast and flexibly. Simulation results show that this tap-mobile DFE exhibits considerable computational savings and more stable performance than the conventional ones. It is quite fit for applications in high-speed systems, such as high definition television (HDTV) and broadband mobile communication.
Starting Page	1934
Ending Page	1938
File Size	212862
Page Count	5
File Format	PDF
ISBN	9781424421787
DOI	10.1109/ICOSP.2008.4697521
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	HDTV Frequency diversity Filters Channel estimation Delay effects Noise reduction Hardware Computational modeling Decision feedback equalizers TV diversity receiver Space-time equalizer DFE
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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