Results 151 to 160 of about 26,068 (175)

Space–Time Frequency-Shift Keying

IEEE Transactions on Communications, 2004
Frequency-shift keying (FSK) is a popular modulation scheme in power-limited communication links. This paper introduces space-time FSK (ST-FSK), which does not require any channel state information at the transmitter and the receiver, as in conventional noncoherent FSK. ST-FSK can be viewed as a special unitary ST modulation design. However, ST-FSK has
G. Leus, W. Zhao, G.B. Giannakis, H. Delic   +3 more
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Space-time coded ternary phase shift keying

Fourth International Conference on Information, Communications and Signal Processing, 2003 and the Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint, 2004
This paper addresses the space-time coding (STC) in ternary phase shift keying (TPSK) for highly reliable wireless communications. TPSK has not been focused upon until now, although it has theoretically excellent features for mobile communication systems, that is, splendid error rate characteristics and minimum amplitude fluctuation among all of the ...
T. Koike, S. Yoshida
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Sphere decoding for generalized space-time shift keying

2014 4th IEEE International Conference on Information Science and Technology, 2014
In this paper, the sphere decoding (SD) detector for the generalized space-time shift keying (G-STSK) scheme is developed to reduce the computational complexity of the optimal detector. The proposed SD detector consists of a series of SD algorithms with each one associated with an activated dispersion matrix pattern.
Jianping Zheng, Juan Tao, Jinfang Dou, Baoming Bai   +3 more
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Blind channel estimation of space-time Frequency-Shift Keying

Journal of Electronics (China), 2006
The decoupled coherent Maximum Likelihood (ML) detection algorithm presented in this letter can sharply reduce the complexity of the receiver as well as provide better error performance under the precondition that channel should be estimated first. Considering the bandwidth inefficiency of Frequency Shift Keying (FSK), the acquisition of channel state ...
Yuanyuan Gao, Xiaoxin Yi, Zuping Qian, Xianbing Hu   +3 more
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A space-time block code using orthogonal frequency-shift-keying

IEEE International Conference on Communications, 2005. ICC 2005. 2005, 2005
We investigate in this paper an Alamouti-type space-time block code (STBC) using orthogonal M-ary frequency-shift-keying (MFSK). The signal is coherently detected using the channel estimates derived from the unmodulated (or implicit pilot) component of the orthogonal signal.
P. Ho, null Songhua Zhang, null Pooi Yuen Kam   +2 more
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Reduced-Complexity Iterative-Detection-Aided Generalized Space-Time Shift Keying

IEEE Transactions on Vehicular Technology, 2012
A novel reduced-complexity soft decision (SoD)-aided detector is proposed for the recent concept of space-time shift keying (STSK), where the detector's achievable performance is capable of closely approaching that of the optimal maximum a posteriori (MAP) detector.
Sugiura, Shinya, Xu, Chao, Ng, Soon, Hanzo, Lajos   +3 more
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Differential space-time coding with offset quadrature phase-shift keying

IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, 2005., 2005
Differential space-time coding (DSTC) has been well established as a precoding technique that allows maximum likelihood detection of the received symbols without requiring knowledge of channel state information. This type of detection is useful for highly time-varying channels where the resulting cost of channel estimation is high.
A.L. Anderson, J.R. Zeidler, M.A. Jensen
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A Low Complexity Dispersion Matrix Optimization Scheme for Space-Time Shift Keying

2020 IEEE/CIC International Conference on Communications in China (ICCC), 2020
Space- Time Shift Keying (STSK) is a multi-antenna technique, which transmits additional data bits by selecting indices of a pre-designed dispersion matrix set. However, conventional STSK scheme employs a random search scheme to optimize the dispersion matrix set, which requires high computational complexity.
Yun Wu, Wenming Han, Xueqin Jiang, Enjian Bai, Miaowen Wen, Jian Wang   +5 more
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Deep Learning Based Antenna Selection Aided Space-Time Shift Keying Systems

Proceedings of the 2019 International Conference on Artificial Intelligence and Computer Science, 2019
In this paper, we propose an antenna selection aided space-time shift keying(STSK) multiple-input multiple-output(MIMO) system based on deep learning method. More specifically, we first extract the channel characteristics from the channel state information, then labeling every sample by maximizing the key performance indicator.
Huancong Luo, Jiajun Xu, Jihong Zhang, Peichang Zhang, Lei Huang   +4 more
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Permutation-Aided Space-Time Shift Keying for Indoor Visible Light Communication

2019 IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids (SmartGridComm), 2019
An iterative, low-complexity soft-detection (SD) receiver is designed for detecting permutation-aided space-time shift keying (STSK) modulation in an indoor visible light communication (VLC) channel. The indices of the transmitters, which are light emitting diodes (LEDs) are coordinated by antenna matrices using permutations.
Oluwafemi Kolade, Ling Cheng
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