Báo cáo hóa học: " Iterative Pilot-Layer Aided Channel Estimation with Emphasis on Interleave-Division Multiple Access Systems Hendrik Schoeneich and Peter Adam Hoeher" docx

Báo cáo hóa học: " Iterative Pilot-Layer Aided Channel Estimation with Emphasis on Interleave-Division Multiple Access Systems Hendrik Schoeneich and Peter Adam Hoeher" docx

Báo cáo hóa học: " Iterative Pilot-Layer Aided Channel Estimation with Emphasis on Interleave-Division Multiple Access Systems Hendrik Schoeneich and Peter Adam Hoeher" docx

... include multiple access techniques, iterative multiuser detection, turb o equalization, semiblind channel estimation, and adaptive transmission. Peter Adam Hoeher received Dipl Ing. and Dr Ing. ... International Union of Radio Science (URSI ’05), New Delhi, India, October 2005. [12] H. Schoeneich and P. A. Hoeher, “Semi-blind pilot-layer aided channel estimation...
Ngày tải lên : 22/06/2014, 23:20
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Báo cáo hóa học: " Adaptive low-rank channel estimation for multiband OFDM ultra-wideband communications" pptx

Báo cáo hóa học: " Adaptive low-rank channel estimation for multiband OFDM ultra-wideband communications" pptx

... WF channel estimator and superior than those of other interpolation-based channel estimation schemes. Keywords: channel estimation, MB-OFDM, ultra-wideband (UWB), Wiener filter 1. Introduction Ultra-wideband ... Börjesson, On channel estimation in OFDM systems, in Proceedings of IEEE 45th Veh. Technol. Conf., Chicago, Illinois, USA. 2, 815–819 (1995) 6. M Morelli, U Mengali,...
Ngày tải lên : 20/06/2014, 22:20
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báo cáo hóa học: " Adaptive low-rank channel estimation for multiband OFDM ultra-wideband communications" docx

báo cáo hóa học: " Adaptive low-rank channel estimation for multiband OFDM ultra-wideband communications" docx

... interpolation-based channel estimation schemes. Keywords: channel estimation, MB-OFDM, ultra-wideband (UWB), Wiener filter 1. Introduction Ultra-wideband (UWB) wirel ess systems have generated considerable ... well as channelization and multiple- access capability among different piconets. That is the primary reason why the preamble symbols gai n a high probabil- ity of being co...
Ngày tải lên : 21/06/2014, 00:20
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Báo cáo hóa học: " Research Article Crosstalk Channel Estimation via Standardized Two-Port Measurement" potx

Báo cáo hóa học: " Research Article Crosstalk Channel Estimation via Standardized Two-Port Measurement" potx

... presented and evaluated in Section 6 followed by an error analysis in Section 7. Finally, a summary and conclusions are provided in Section 8. 2. SYSTEM MODEL In this section, we first describe the concept ... model with additive noise. In contrast to the MIMO case, it is here convenient to consider the trans- mission from one user at a time and for all K subchannels. In order to simpl...
Ngày tải lên : 21/06/2014, 22:20
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Báo cáo hóa học: " Research Article Blind Channel Equalization with Colored Source Based on Constrained Optimization Methods" pptx

Báo cáo hóa học: " Research Article Blind Channel Equalization with Colored Source Based on Constrained Optimization Methods" pptx

... “Blind fractionally-spaced equalization, perfect-reconstruction filter banks and multichannel linear prediction,” in Proceedings of IEEE International Conference on Acoustics, Speech, and Signal ... and equalization comes from the fast convergence and efficient computation of these algorithms. Most of the SIMO-based blind channel estimation and equalization methods assume that th...
Ngày tải lên : 21/06/2014, 22:20
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Báo cáo hóa học: " Research Article Single-Channel Talker Localization Based on Discrimination of Acoustic Transfer Functions" pot

Báo cáo hóa học: " Research Article Single-Channel Talker Localization Based on Discrimination of Acoustic Transfer Functions" pot

... both localization estimation from more locations and estimation when the conditions other than speaker position change. We also hope to improve the localization accuracy in noisy environments and for ... Denda, T. Nishiura, and Y. Yamashita, “Robust talker direction estimation based on weighted CSP analysis and maximum likelihood estimation, ” IEICE Transactions on Infor- m...
Ngày tải lên : 21/06/2014, 22:20
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Báo cáo hóa học: " Research Article MAP Channel-Estimation-Based PIC Receiver for Downlink MC-CDMA Systems" docx

Báo cáo hóa học: " Research Article MAP Channel-Estimation-Based PIC Receiver for Downlink MC-CDMA Systems" docx

... channel estimation for OFDM systems and compared with SAGE version in [7]. For CDMA sys- tems, Nelson and Poor [8] extend the EM and SAGE algo- rithms for detection, rather than for estimation ... including channel estimation into the iterative receiver yields further improvements. We there- fore consider iterative channel estimation techniques based on the expec...
Ngày tải lên : 22/06/2014, 19:20
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Báo cáo hóa học: " Energy-Efficient Channel Estimation in MIMO Systems" pot

Báo cáo hóa học: " Energy-Efficient Channel Estimation in MIMO Systems" pot

... BER variation SNR for different channel estimation schemes for 50 random 8-by-8 channels. individually and performing channel estimation on each SIMO system. However, the energy reduction comes ... transmission. In this paper, we focus on MIMO channel estimation subject to delay and error constraints. We propose an an- tenna selection scheme for channel estimation that...
Ngày tải lên : 22/06/2014, 22:20
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Báo cáo hóa học: " Research Article Random Field Estimation with Delay-Constrained and Delay-Tolerant Wireless Sensor Networks" pptx

Báo cáo hóa học: " Research Article Random Field Estimation with Delay-Constrained and Delay-Tolerant Wireless Sensor Networks" pptx

... random field estimation with wireless sensor networks. We consider two encoding strategies, namely, Compress -and- Estimate (C&E) and Quantize -and- Estimate (Q&E), which operate with and without ... CEDC and CEDT cases). This constitutes the best trade-off in terms of, on the one hand, the ability to capture the spatial variations of the random field and, on the other,...
Ngày tải lên : 21/06/2014, 17:20
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Báo cáo hóa học: " The Extended-Window Channel Estimator for Iterative Channel-and-Symbol Estimation" pdf

Báo cáo hóa học: " The Extended-Window Channel Estimator for Iterative Channel-and-Symbol Estimation" pdf

... EW-ICSE may converge faster than the EM-ICSE. Keywords and phrases: blind channel estimation, EM algorithm, maximum-likelihood estimation, iterative systems. 1. INTRODUCTION Channel estimation is an ... blind and semib- lind channel estimation is based on the iterative strategy de- picted in Figure 1 [3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14], which we call iterative...
Ngày tải lên : 23/06/2014, 00:20
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