Results 241 to 250 of about 18,605,265 (278)
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Block Coded Modulation for Space-Time Signaling
2006 IEEE International Symposium on Information Theory, 2006This paper presents a method for increasing the coding gain of all varieties of space-time block codes (STBC), without using a trellis or introducing dependency between successive transmission blocks, using ideas from Block-Coded Modulation (BCM). For a given STBC, we first increase the constellation size, then prune the codewords of the expanded ...
Mohammad Janani, Aria Nosratinia
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Linear toeplitz space time block codes
Proceedings. International Symposium on Information Theory, 2005. ISIT 2005., 2005In this paper we consider coherent flat fading wireless communication systems with multiple transmitter antennas and single receiver antenna (MISO). We propose a Toeplitz linear space time block code (STBC) that converts an original MISO flat fading channel into a Toeplitz virtual multiple inputs multiple outputs (MIMO) channel.
Jian-Kang Zhang 0002 +2 more
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Space-Time Block Coding for Wireless Communications
2003Space-time coding is a technique that promises greatly improved performance in wireless networks by using multiple antennas at the transmitter and receiver. Space-Time Block Coding for Wireless Communications, first published in 2003, is an introduction to the theory of this technology.
Erik G. Larsson, Petre Stoica
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Power adaptation in space-time block code
GLOBECOM'01. IEEE Global Telecommunications Conference (Cat. No.01CH37270), 2002Transmission power adaptations are considered in a space-time block code (STBC) system utilizing feedback channel gain information. We investigate the optimal power adaptation scheme that minimizes the average BER subject a fixed average transmission power constraint.
Myeongsook Seo, Sang Wu Kim
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Differential space-time block-diagonal codes
Science in China Series F: Information Sciences, 2007zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhendong Luo, Yuanan Liu, Jinchun Gao
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Diagonal algebraic space-time block codes
IEEE Transactions on Information Theory, 2002Summary: We construct a new family of linear space-time (ST) block codes by the combination of rotated constellations and the Hadamard transform, and we prove them to achieve the full transmit diversity over a quasi-static or fast fading channel. The proposed codes transmit at a normalized rate of 1 symbol/\(s\).
Mohamed Oussama Damen +2 more
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On non-linear space-time block codes
IEEE International Conference on Acoustics Speech and Signal Processing, 2002A number of space-time block codes have been proposed for the quasi-static, flat-fading channel with coherent receiver. All of these block codes are linear codes, i.e., the encoded codeword is a linear function of the input scalar symbols. Here we propose new non-linear space-time block codes, i.e., the codewords are non-linear functions of the input ...
Sumeet Sandhu +2 more
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High Rate Space Time Block Codes
IEICE Transactions on Communications, 2006High Rate Space-Time Block Codes (HR-STBCs) with greater than 1 symbol/transmission and simple decoding schemes are proposed. The HR-STBC demonstrates 3 dB E b /N 0 gain at BER = 10 -3 compared with the conventional STBC when three transmit antennas and two receive antennas are utilized.
Jaehak Chung +2 more
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Performance of space-time block coding and space-time trellis coding for impulse radio
IEEE Global Telecommunications Conference, 2004. GLOBECOM '04., 2005Ultra wideband (UWB) systems have attracted a lot of research interest lately, owing to their appealing features in short-range mobile communications. These features include low power peer-to-peer transmissions, multiple access communications, high data rates, and precise positioning capabilities.
Heliot, F +3 more
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Equivalent codes and optimality of orthogonal space-time block codes
2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR), 2011An equivalent model of a multiple-input multiple-output (MIMO) communication system with orthogonal space-time block coding (OSTBC) is proposed based on a newly found connection between OSTBCs and Euclidian codes. A new asymptotic upper bound on the symbol error rate (SER) of OSTBC, which is based on distance spectra of the introduced equivalent ...
Alex E. Geyer +2 more
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