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Title: Approximate best linear unbiased channel estimation for multi-antenna frequency selective channels with applications to digital TV systems
Authors: Özen, Serdar
Pladdy, Christopher
Nerayanuru, Sreenivasa M.
Fimoff, Mark J.
Zoltowski, Michael D.
Keywords: Channel estimation
Digital television
Best linear unbiased estimator
Least squares estimation
Multi-antenna receivers
Issue Date: 2004
Publisher: SPIE
Source: Özen, S., Pladdy, C., Nerayanuru, S. M., Fimoff, M. J., and Zoltowski, M. D. (2004). Approximate best linear unbiased channel estimation for multi-antenna frequency selective channels with applications to digital TV systems. Proceedings of SPIE - The International Society for Optical Engineering, 5440, 33-44. doi:10.1117/12.543164
Abstract: We provide an iterative and a non-iterative channel impulse response (CIR) estimation algorithm for communication receivers with multiple-antenna. Our algorithm is best suited for communication systems which utilize a periodically transmitted training sequence within a continuous stream of information symbols, and the receivers for this particular system are expected work in a severe frequency selective multipath environment with long delay spreads relative to the length of the training sequence. The iterative procedure calculates the (semi-blind) Best Linear Unbiased Estimate (BLUE) of the CIR. The non-iterative version is an approximation to the BLUE CIR estimate, denoted by a-BLUE, achieving almost similar performance, with much lower complexity. Indeed we show that, with reasonable assumptions, a-BLUE channel estimate can be obtained by using a stored copy of a pre-computed matrix in the receiver which enables the use of the initial CIR estimate by the subsequent equalizer tap weight calculator. Simulation results are provided to demonstrate the performance of the novel algorithms for 8-VSB ATSC Digital TV system. We also provide a simulation study of the robustness of the a-BLUE algorithm to timing and carrier phase offsets.
Description: Digital Wireless Communications VI; Orlando, FL; United States; 12 April 2004 through 13 April 2004
ISSN: 0277-786X
Appears in Collections:Electrical - Electronic Engineering / Elektrik - Elektronik Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Sürdürülebilir Yeşil Kampüs Koleksiyonu / Sustainable Green Campus Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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