Results 181 to 190 of about 892,691 (234)

Opportunistic space-time block codes

VTC-2005-Fall. 2005 IEEE 62nd Vehicular Technology Conference, 2005., 2006
Keywords: NCCR-MICS ; NCCR-MICS/CL1 Note: inproceedings Reference LICOS-CONF-2005-005doi:10.1109/VETECF.2005.1558464 Record created on 2006-12-11, modified on 2017-08 ...
S. Das, N. Al-Dhahir, S. Diggavi, R. Calderbank   +3 more
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Semiorthogonal Space–Time Block Codes

IEEE Transactions on Information Theory, 2010
In this paper, a new class of full-diversity, rate-one space-time block codes (STBCs) called semiorthogonal algebraic space-time block codes (SAST codes) is proposed. SAST codes are delay optimal when the number of transmit antennas is even. The SAST codeword matrix has a generalized Alamouti structure where the transmitted symbols are replaced by ...
null Ngoc-Dung Dao, C. Tellambura
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Distributed space-time block coding

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005., 2005
In this paper, a new class of distributed space-time block codes (DSTBCs) is introduced. These DSTBCs are designed for wireless networks which have a large set of single-antenna relay nodes Nscr, but at any given time only a small, a priori unknown subset of nodes SsubeNscr can be active.
S. Yiu, R. Schober, L. Lampe
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Differential space-time block codes

GLOBECOM'01. IEEE Global Telecommunications Conference (Cat. No.01CH37270), 2002
We propose a new differential modulation scheme for multiple-antenna systems based on square space-time block codes (STBC) when neither the transmitter nor the receiver knows channel state information. Compared with the known differential unitary space-time modulation (DUSTM), the proposed constellations generally have multiple amplitudes and do not ...
null Meixia Tao, R.S. Cheng
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Space-time block codes for noncoherent CPFSK

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005., 2005
In this paper the problem of unitary rate space-time block coding for multiple-input multiple-output communication systems employing continuous phase frequency shift keying is investigated. First, one-shot noncoherent detection is analysed in a maximum likelihood perspective; then, design criteria for optimal space-time codes are proposed and some ...
PANCALDI, Fabrizio, VITETTA, Giorgio Matteo   +1 more
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High-Rate Space-Time Block Coding Schemes

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2008
A rate-6/4 full-diversity orthogonal space-time block code (STBC) is constructed for QPSK and 2 transmit antennas by applying constellation scaling and rotation to the set of quaternions used in Alamouti code. Also given is a rate-9/8 full-diversity quasi-orthogonal space-time block code (QOSTBC) for 4 transmit antennas.
Duy H. N. Nguyen, Ha H. Nguyen, Hoang D. Tuan   +2 more
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Full Diversity Blind Space-Time Block Codes

IEEE Transactions on Information Theory, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhang, Jian-Kang, Huang, Fei, Ma, Shuang
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Space-time block coding for spatial modulation

21st Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2010
Space-time block coded spatial modulation (STBC-SM), which employs space-time block coding (STBC) for spatial modulation (SM), is proposed as a new multiple-input multiple-output (MIMO) transmission scheme. In the STBC-SM scheme, the transmitted information symbols are expanded not only to the space and time domains but also to the spatial (antenna ...
Başar, Ertuğrul, Aygölü, Ümit, Panayırcı, Erdal, Poor, H. Vincent   +3 more
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Closed loop space-time block code

IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211), 2002
In 3GPP FDD specifications, space time transmit diversity (STTD) employs space-time block code (STBC) to maintain orthogonality between the two antennas in order to avoid self-interference in fading channels. However, the STTD technique is just open loop transmit diversity, and we investigate whether we can obtain further gain if closed loop STBC is ...
null Tao Xiaofeng, H. Harald, null Yu Zhuizhuan, null Qin Haiyan, null Zhang Ping   +4 more
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Space time block code for EDGE

IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211), 2002
Transmit diversity techniques have emerged as a very powerful tool to mitigate the adverse effect of fading in mobile radio communications. In transmission systems with weak channel coding or slow moving mobiles transmit diversity techniques that can improve uncoded transmission are of particular interest. In this paper we apply a space-time block code
G.P. Mattellini, K. Kuchi, P.A. Ranta
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