Results 21 to 30 of about 18,141,497 (258)
A unified MIMO architecture subsuming space shift keying, OSTBC, BLAST and LDC [PDF]
IEEE Transactions on Wireless Communications, 2010 In this paper, motivated by the recent concept of Spatial, Modulation (SM), we propose a novel Generalized Space-Time Shift Keying (G-STSK) architecture, which acts as a unified Multiple-Input Multiple-Output (MIMO) framework.
Sheng Chen +5 more
core +6 more sources
Spatial modulation and space-time shift keying: optimal performance at a reduced detection complexity [PDF]
IEEE Transactions on Communications, 2013 —In this paper, we propose a comprehensive reduced-complexity detector both for hard-decision-aided as well as for the soft-decision-assisted Spatial Modulation (SM)/Space-Time Shift Keying (STSK).
Sugiura, Shinya +7 more
core +3 more sources
Digital modems of minimum frequency shift keying signals and their characteristics
Физика волновых процессов и радиотехнические системы, 2023 Background. The need to describe the features of the formation of minimum frequency shift keying signals, reveal the advantages of this type of modulation, provide circuits for digital demodulators of minimum frequency shift keying signals that provide ...
Anatoly I. Tyazhev
doaj +1 more source
Constant-Envelope Space-Time Shift Keying [PDF]
IEEE Journal of Selected Topics in Signal Processing, 2019 From the power amplifier's perspective, the peak-to-average power ratio (PAPR) is of essential importance, especially for both single-RF and reduced-RF multiple-input multiple-output (MIMO) single-carrier schemes. In this context, many of the diversity-oriented index modulation schemes—including the full-RF space-time shift keying (STSK) and the single-
Chao Xu 0005 +6 more
openaire +2 more sources
Egyptian Journal of Remote Sensing and Space Sciences, 2023 The article develops a methodology for analyzing the noise immunity of satellite communication systems under small-scale disturbances of the ionosphere, taking into account the possibility of general and time-selective fading of received signals ...
V.P. Pashintsev +4 more
doaj +1 more source
Sparse Space Shift Keying Modulation with Enhanced Constellation Mapping
Sensors, 2022 For reducing the switching frequency between the radio frequency (RF) chain and transmit antennas, a class of new sparse space shift keying modulation (SSSK) schemes are presented.
Tiebin Wang +3 more
doaj +1 more source
A Janus compatible software-defined underwater acoustic multiple-input multiple-output modem
International Journal of Distributed Sensor Networks, 2021 This article describes the implementation of a multiple-input multiple-output acoustic communication link in shallow water conditions to enable a software-defined acoustic modem with a maximum transmission rate of 20 kbps in a 5-kHz bandwidth.
Surinder Singh +3 more
doaj +1 more source
Improved Frequency Sweep Keying CDMA Using Faster R-CNN for Extended Ultrasonic Crosstalk Reduction
Sensors, 2023 Ultrasonic sensors are inexpensive and provide highly accurate measurements, even with simple hardware configurations, facilitating their use in various fields.
Ga-Rin Park +2 more
doaj +1 more source
Frequency Sweep Keying CDMA for Reducing Ultrasonic Crosstalk
Sensors, 2022 Various sensors are embedded in automobiles to implement intelligent safety technologies such as autonomous driving and front–rear collision avoidance technology.
Ga-Rin Park +2 more
doaj +1 more source
Joint-Alphabet Space Time Shift Keying in mm-Wave Non-Orthogonal Multiple Access
IEEE Access, 2018 Flexible modulation schemes and smart multiple-input multiple-output techniques, as well as low-complexity detectors and preprocessors may become essential for efficiently balancing the bit error ratio performance, throughput, and complexity tradeoff for
Panagiotis Botsinis +8 more
doaj +1 more source