Results 201 to 210 of about 34,907 (243)
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A differential space-time coded RFID system
2014 6th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), 2014We propose a differential space-time coded (STC) radio-frequency-identification (RFID) system where the tag has two antennas and the reader has a single or multiple antennas. In this system, the M-ary phase-shift keying constellation is used, and encoding at the tag and decoding at the reader are simple.
Maichalernnukul, Kiattisak +2 more
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Design of Differential Space-Time Trellis Codes
IEEE Transactions on Wireless Communications, 2007This paper presents the performance analysis and code design for differential space-time trellis code (DSTTC) when no channel state information (CSI) is available at neither the transmitter nor receiver. Upper bounds on the pairwise error probability of DSTTC over fast fading and quasi-static fading channels are derived and new design criteria are ...
Yonghui Li 0001, Branka Vucetic
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A new differential monomial space-time code
IEEE Wireless Communications and Networking Conference, 2005, 2005A new class of differential unitary space-time codes, namely, differential monomial space-time codes, is proposed. In contrast to many other differential unitary space-time codes, this new class of differential monomial space-time codes does not require the transmitted matrices to form a group.
Zheng Du, Norman C. Beaulieu
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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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Distributed Convolutional-Coded Differential Space-Time Block Coding
2010 IEEE 71st Vehicular Technology Conference, 2010A low complexity distributed coding scheme is proposed for communications over Rayleigh fading channels. Convolutional Coding (CC) assisted Differential Phase-Shift Keying (DPSK) modulation is employed at the source node for conveying the source signals to two relay nodes as well as to the destination node during the first transmission period ...
Soon Xin Ng, Yang Wang, Lajos Hanzo
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Differential distributed space-time coding based on Cayley codes
2008 IEEE International Symposium on Information Theory, 2008We propose a coding strategy for wireless relay networks with no channel information based on Cayley differential unitary codes. While satisfying the requirements for differential distributed space-time coding, our scheme furthermore inherits of the advantages of Cayley codes, namely high rate, efficient encoding, and a linearized sphere decoder.
Frédérique E. Oggier, Emmanuel Lequeu
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Differential Detection Based on Space-Time Block Codes
Wireless Personal Communications, 2002In this paper we consider the use of differential detection when there are multiple transmitter and receiver antennas. Our differential scheme is based on the theory of Space-Time Block Codes that are used to achieve space-time diversity. Compared to the existing differential schemes for multiple antennas our scheme has a much smaller computational ...
Girish Ganesan, Petre Stoica
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Differential space-time coding for frequency-selective channels
IEEE Communications Letters, 2002We introduce two space-time transmission schemes which allow full-rate and full-diversity noncoherent communications using two transmit antennas over fading frequency-selective channels. The first scheme operates in the frequency domain where it combines differential Alamouti (seeIEEE J. Select. Areas Commun., vol.16, p.1451-58, Nov.
Suhas N. Diggavi +3 more
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A new differential space-time block coding scheme
The 8th International Conference on Communication Systems, 2002. ICCS 2002., 2003Most existing space-time coding schemes rely heavily on accurate channel estimation at the receiver., which is a difficult task in rapidly fading environment. The previous Tarokh and Jafarkhani (see IEEE Journal on Selected Areas in Comm., vol.18, no.7, p.1169-1174, 2000) differential space-time block code (DSTBC) suffers from the signal constellation ...
Xun Shao, Jinhong Yuan
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Differential Space–Time Coded Switch and Stay Combining
IEEE Transactions on Vehicular Technology, 2010The design and analysis of differential space-time coding is considered where the receiver, with a single radio frequency (RF) chain, uses switch and stay combining (SSC). Without channel knowledge at the receiver, a receive-power-based switching algorithm is proposed.
Adarsh B. Narasimhamurthy +1 more
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