Results 11 to 20 of about 26,068 (175)
OFDMA/SC-FDMA aided space-time shift keying for dispersive multi-user scenarios [PDF]
IEEE Transactions on Vehicular Technology, 2013 Motivated by the recent concept of Space-Time Shift Keying (STSK) developed for achieving a flexible diversity versus multiplexing gain trade-off, we propose a novel Orthogonal Frequency Division Multiple Access (OFDMA)/Single Carrier Frequency Division ...
Chen, Sheng +4 more
core +4 more sources
Reduced-Complexity Noncoherently Detected Differential Space-Time Shift Keying [PDF]
IEEE Signal Processing Letters, 2011 Motivated by the recent development of spatial modulation (SM) and differential space-time shift keying (DSTSK), we propose a reduced-complexity conventional differential detector (CDD) as well as its reduced-complexity multiple-symbol differential sphere detector (MSDSD) counterpart for DSTSK.
Xu, Chao +3 more
exaly +8 more sources
“Near-Perfect” Finite-Cardinality Generalized Space-Time Shift Keying [PDF]
IEEE Journal on Selected Areas in Communications, 2019 Two decades of full-diversity high-rate MIMO research has created perfect Space-Time Block Codes (STBCs), including the Golden code. However, the major stumbling block of their wide-spread employment is their limited energy-efficiency. On one hand, the superposition of their signals results in a high Peak-to-Average Power Ratio (PAPR).
Chao Xu +6 more
openaire +8 more sources
Space-Time Shift Keying Aided OTFS Modulation for Orthogonal Multiple Access
IEEE Transactions on Communications, 2023 Space-time shift keying-aided orthogonal time frequency space modulation-based multiple access (STSK-OTFS-MA) is proposed for reliable uplink transmission in high-Doppler scenarios. As a beneficial feature of our STSK-OTFS-MA system, extra information bits are mapped onto the indices of the active dispersion matrices, which allows the system to enjoy ...
Zeping Sui +4 more
openaire +7 more sources
Reduced-Complexity Soft-Decision Aided Space-Time Shift Keying [PDF]
IEEE Signal Processing Letters, 2011 In this letter, we propose to reduce the detection complexity of soft-decision aided Space-Time Shift Keying (STSK). More explicitly, we propose a vector-by-vector based STSK detector, which exhibits a lower complexity compared to the classic block-by-block based Space-Time Modulation (STM) detector.
Xu, Chao +3 more
openaire +4 more sources
A universal space-time architecture for multiple-antenna aided systems
IEEE Communications Surveys and Tutorials, 2012 In this tutorial, we first review the family of conventional multiple-antenna techniques, and then we provide a general overview of the recent concept of the powerful Multiple-Input Multiple-Output (MIMO) family based on a universal Space-Time Shift ...
Chen, Sheng +2 more
core +2 more sources
IEEE Transactions on Vehicular Technology, 2011 Space Shift Keying (SSK) modulation is a recently proposed MIMO technique, which activates only a single transmit antenna during each time slot and uses the specific index of the activated transmit antenna to implicitly convey information.
Hanzo, Lajos +3 more
core +2 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 +6 more
openaire +3 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