Results 251 to 260 of about 895,871 (285)
Some of the next articles are maybe not open access.
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
openaire +1 more source
Patched Distributed Space-Time Block Codes
2010 IEEE International Conference on Communications, 2010In this paper, we propose Patched Distributed Space-Time Block Codes (DSTBC) for the Dynamic Decode and Forward (DDF) Relaying protocol, in which the relay transmits combination of information from the first and second phase of the DDF protocol, and the destination makes a linear combination of symbols received in the two phases.
Mélanie Plainchault +2 more
openaire +1 more source
Multilevel Concatenated Space-Time Block Codes
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2010An alternative design for constructing multilevel space-time codes is proposed. For a given space-time block code, we combine several component codes in conjunction with set partitioning of the expanded signal constellation according to the coding gain distance criterion.
openaire +1 more source
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
openaire +1 more source
On an Orthogonal Space-Time-Polarization Block Code
Journal of Communications, 2009Over the past several years, diversity methods such as space, time, and polarization diversity have been successfully implemented in wireless communications systems. Orthogonal space-time block codes efficiently combine space and time diversity, and they have been studied in detail.
Beata J. Wysocki +2 more
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +2 more sources
Noncoherent space-time block coded modulation
2004 IEEE International Conference on Communications (IEEE Cat. No.04CH37577), 2004Unitary space-time modulation is well tailored for flat fading channels where the noncoherent receiver is used. In this paper, we propose a novel scheme of unitary space-time modulation, called noncoherent space-time block coded modulation, by using the set partitioning of signal sets and multilevel coding.
openaire +1 more source
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
openaire +1 more source