tailieunhanh - Báo cáo hóa học: " Research Article Performance Analysis of the 3GPP-LTE Physical Control Channels"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Performance Analysis of the 3GPP-LTE Physical Control Channels | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2010 Article ID 914934 10 pages doi 2010 914934 Research Article Performance Analysis of the 3GPP-LTE Physical Control Channels S. J. Thiruvengadam1 2 and Louay M. A. Jalloul3 1 Smart Antenna Research Group Department of Electrical Engineering Stanford University USA 2TIFAC CORE in Wireless Technologies Thiagarajar College of Engineering Madurai 625015 India 3Beceem Communications Inc. Santa Clara CA 95054 USA Correspondence should be addressed to Louay M. A. Jalloul jalloul@ Received 8 May 2010 Revised 24 September 2010 Accepted 11 November 2010 Academic Editor Ashish Pandharipande Copyright 2010 S. J. Thiruvengadam and L. M. A. Jalloul. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Maximum likelihood-based ML receiver structures are derived for the decoding of the downlink control channels in the new long-term evolution LTE standard based on multiple-input and multiple-output MIMO antennas and orthogonal frequency division multiplexing OFDM . The performance of the proposed receiver structures for the physical control format indicator channel PCFICH and the physical hybrid-ARQ indicator channel PHICH is analyzed for various fading-channel models and MIMO schemes including space frequency block codes SFBC . Analytical expressions for the average probability of error are derived for each of these physical channels. The impact of channel-estimation error on the orthogonality of the spreading codes applied to users in a PHICH group is investigated and an expression for the signal-to-self interference plus noise ratio is derived for Single Input Multiple Output SIMO systems. Finally a matched filter bound on the probability of error for the PHICH in a multipath fading channel is derived. The .

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