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检索条件"主题词=Space-frequency coding"
44 条 记 录,以下是21-30 订阅
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Alamouti-based space-frequency coding for OFDM
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WIRELESS PERSONAL COMMUNICATIONS 2005年 第1-2期35卷 173-185页
作者: Hutter, AA Mekrazi, S Getu, BN Platbrood, F CSEM CH-2000 Neuchatel Switzerland Inst EURECOM F-06904 Sophia Antipolis France Univ Aalborg DK-9220 Aalborg Denmark
We investigate space-frequency block coding for OFDM systems with multiple transmit antennas, where coding is applied in the frequency domain (OFDM carriers) rather than in the time domain (OFDM symbols). In particula... 详细信息
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Alamouti-based space-frequency coding for OFDM
Alamouti-based space-frequency coding for OFDM
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International Symposium on Wireless Personal Multimedia Communications
作者: Hutter, AA Mekrazi, S Getu, BN Platbrood, F CSEM CH-2000 Neuchatel Switzerland Inst EURECOM F-06904 Sophia Antipolis France Univ Aalborg DK-9220 Aalborg Denmark
We investigate space-frequency block coding for OFDM systems with multiple transmit antennas, where coding is applied in the frequency domain (OFDM carriers) rather than in the time domain (OFDM symbols). In particula... 详细信息
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Transmit Beamforming for space-frequency Coded MIMO-OFDM Systems with Spatial Correlation Feedback
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IEEE TRANSACTIONS ON COMMUNICATIONS 2008年 第10期56卷 1647-1655页
作者: Sadek, Ahmed K. Su, Weifeng Liu, K. J. Ray Qualcomm Inc Corp R&D San Diego CA 92121 USA SUNY Buffalo Dept Elect Engn Buffalo NY 14260 USA Univ Maryland Dept Elect & Comp Engn College Pk MD 20742 USA Univ Maryland Syst Res Inst College Pk MD 20742 USA
This paper addresses the problem of joint optimization of transmit beamforming and space-frequency (SF) coding for MIMO-OFDM systems with spatial correlation feedback in broadband communications. This problem is chall... 详细信息
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Cooperative Spectrum Sensing with Transmit and Relay Diversity in Cognitive Radio Networks
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IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 2008年 第12期7卷 4761-4766页
作者: Zhang, Wei Ben Letaief, Khaled Univ New S Wales Sch Elect Engn & Telecommun Sydney NSW 2052 Australia Hong Kong Univ Sci & Technol Dept Elect & Comp Engn Kowloon Hong Kong Peoples R China
In the letter the problem of cooperative spectrum sensing is investigated in cognitive radio (CR) networks over Rayleigh fading channels. By taking into account the error effect on the decision reporting, a general pe... 详细信息
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Blind channel estimation in MIMO-OFDM systems using semi-definite relaxation
Blind channel estimation in MIMO-OFDM systems using semi-def...
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33rd IEEE International Conference on Acoustics, Speech and Signal Processing
作者: Sarmadi, Nima Gershman, Alex B. Shahbazpanahi, Shahram Tech Univ Darmstadt Commun Syst Grp D-64283 Darmstadt Germany Inst Technol Univ Ontario Fac Engn & Appl Sci London ON L1H7K4 Canada
A new blind channel estimation technique for multiple-input multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) systems is proposed. It estimates the channel parameters in the time domain jointly fo... 详细信息
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Performances of differential-encoded FFHMA systems with space-frequency coding over Nakagami-m fading channels
Performances of differential-encoded FFHMA systems with spac...
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60th IEEE Vehicular Technology Conference
作者: Khemapatapan, C Benjapolakul, W Chulalongkorn Univ Dept Elect Engn Bangkok 10330 Thailand
Performances and capacities of differential-encoded fast frequency-hopping multiple-access (FFHMA) systems under Nakagami-m fading channels are studied. The space-frequency coding (SFC) scheme is applied to gain diver... 详细信息
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Iterative channel estimation and decoding of turbo coded SFBC-OFDM systems
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IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 2007年 第8期6卷 3090-3101页
作者: Dogan, Hakan Cirpan, Hakan A. Panayirci, Erdal Istanbul Univ Dept Elect & Elect Engn Istanbul Turkey Kadir Has Univ Dept Elect Engn Istanbul Turkey
We consider the design of turbo receiver structures for space-frequency block coded orthogonal frequency division multiplexing (SFBC-OFDM) systems in the presence of unknown frequency and time selective fading channel... 详细信息
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Noncoherent sequence detection of differential space-frequency modulation MIMO-OFDM
Noncoherent sequence detection of differential space-frequen...
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8th IEEE Workshop on Signal Processing Advances in Wireless Communications
作者: Wang, Xin Li, Ying Wei, Jibo Natl Univ Def Technol Changsha Peoples R China
In a multiple-antenna broadband system, differential space-frequency modulation (DSFM) MIMO-OFDM in conjunction with noncoherent detection, which avoids channel state information (CSI) estimation, is attractive for ti... 详细信息
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Nondata-aided channel estimation for OFDM systems with space-frequency transmit diversity
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IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY 2006年 第2期55卷 449-457页
作者: Çirpan, HA Panayirci, E Dogan, H Istanbul Univ Dept Elect Engn TR-34850 Istanbul Turkey Bilkent Univ Dept Elect & Elect Engn TR-06800 Ankara Turkey
This paper proposes a computationally efficient nondata-aided maximum a posteriori (MAP) channel-estimation algorithm focusing on the space-frequency (SF) transmit diversity orthogonal frequency division multiplexing ... 详细信息
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Coded OFDM with transmitter diversity for digital television terrestrial broadcasting
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IEEE TRANSACTIONS ON BROADCASTING 2006年 第3期52卷 325-335页
作者: Esli, Celal Delic, Hakan Bogazici Univ Wireless Commun Technol Lab TR-34342 Istanbul Turkey Bogazici Univ Wireless Commun Lab TR-34342 Istanbul Turkey
space-frequency coded (SFC) and channel coded orthogonal frequency-division multiplexing (COFDM) is considered under narrow-band interference (NBI). Analytical expressions for the bit error probability (BEP) are deriv... 详细信息
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