Results 11 to 20 of about 76,323 (239)
Differential Spatial Modulation With Gray Coded Antenna Activation Order
IEEE Communications Letters, 2016 In this letter, we propose a gray code order of antenna index permutations for differential spatial modulation (DSM). To facilitate the implementation, the well-known Trotter–Johnson ranking and unranking algorithms are adopted, which result in similar computational complexity to the existing DSM that uses the lexicographic order.
Xiang Cheng, Moon Ho Lee, Miaowen Wen
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Ultrafast dynamic stark shift of an exciton-polariton condensate [PDF]
Nature CommunicationsTime-dependent spatial modulation of a quantum condensate plays a key role in the investigation of the dynamics of collective coherent systems. Cold-atom condensates were already manipulated into forming solitons, vortices and optical lattices via the ...
Sarit Feldman +7 more
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Secure Cognitive MIMO Wiretap Networks With Different Antenna Transmission Schemes
IEEE Access, 2021 This paper investigates a secure transmission in the multiple-input multiple-output (MIMO) cognitive wiretap networks, where a secondary transmitter (Alice) sends data to a secondary receiver (Bob) in the presence of an eavesdropper (Eve).
Yong Chen +4 more
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A Differential Modulation Scheme for Metasurface-Based Terahertz Communications
Frontiers in Communications and Networks, 2021 Metasurface-based terahertz (THz) modulators, which carry information by changing the spatial pattern of the metasurface at every symbol time, are an important component to establish low-cost low-energy–consuming THz communication systems.
Shuaishuai Guo, Jia Ye, Peng Zhang
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Minocycline differentially modulates human spatial memory systems [PDF]
Neuropsychopharmacology, 2020 AbstractMicroglia play a critical role in many processes fundamental to learning and memory in health and are implicated in Alzheimer’s pathogenesis. Minocycline, a centrally-penetrant tetracycline antibiotic, inhibits microglial activation and enhances long-term potentiation, synaptic plasticity, neurogenesis and hippocampal-dependent spatial memory ...
Sam C. Berens +2 more
openaire +4 more sources
Differential space time media‐based modulation system
IET Communications, 2022 Differential spatial modulation (DSM) is a multi‐antenna differential technology with low power consumption and no demand of channel estimation. It is suitable for communication systems that have fast migration velocity and high requirements for both ...
Hongliang Zou +3 more
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Unified Differential Spatial Modulation
IEEE Wireless Communications Letters, 2014 This letter proposes a unified differential spatial modulation (DSM) architecture, where a flexible rate-diversity tradeoff is achieved, while enabling a simple single-RF transmitter structure along with non-coherent detection that dispenses with channel estimation at the receiver.
Naoki Ishikawa, Shinya Sugiura
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ETRI Journal, 2021 In this paper, the performance of precoding-aided differential spatial modulation (PDSM) systems with optimal transmit antenna subset (TAS) selection is examined analytically.
Sangchoon Kim
doaj +1 more source
IEEE Access, 2017 In this paper, we provide a comprehensive review of diverse index modulation (IM) architectures that operate in the space, time, and frequency domains, as well as their related technologies.
Shinya Sugiura +2 more
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A genetic algorithm based method of optimizing dispersion matrix for RDSM system
Dianxin kexue, 2022 Rectangular differential spatial modulation (RDSM) is a multi-antenna incoherent modulation technology with high spectral efficiency, low power consumption, and zero-overhead for channel estimation.RDSM is especially suitable for 6G communication systems,
Peng ZHANG, Xiaoping JIN, Dongxiao CHEN
doaj +2 more sources