Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Long, Ruizhe"'
A novel multicast communication system with movable antennas (MAs) is proposed, where the antenna position optimization is exploited to enhance the transmission rate. Specifically, an MA-assisted two-user multicast multiple-input single-input system
Externí odkaz:
http://arxiv.org/abs/2405.07281
Active reconfigurable intelligent surface (RIS) has attracted significant attention in wireless communications, due to its reflecting elements (REs) capable of reflecting incident signals with not only phase shifts but also amplitude amplifications.
Externí odkaz:
http://arxiv.org/abs/2403.16472
Publikováno v:
IEEE Wireless Communications Letters, early access, 2023
Active reconfigurable intelligent surface (ARIS) is a newly emerging RIS technique that leverages radio frequency (RF) reflection amplifiers to empower phase-configurable reflection elements (REs) in amplifying the incident signal. Thereby, ARIS can
Externí odkaz:
http://arxiv.org/abs/2311.02935
Publikováno v:
IEEE Transactions on Wireless Communications, early access, 2023
Symbiotic radio (SR) is a promising solution to achieve high spectrum- and energy-efficiency due to its spectrum sharing and low-power consumption properties, in which the secondary system achieves data transmissions by backscattering the signal orig
Externí odkaz:
http://arxiv.org/abs/2311.02928
In reconfigurable intelligent surface (RIS)-assisted symbiotic radio (SR), the RIS acts as a secondary transmitter by modulating its information bits over the incident primary signal and simultaneously assists the primary transmission, then a coopera
Externí odkaz:
http://arxiv.org/abs/2311.01167
To accommodate the explosive wireless traffics, massive multiple-input multiple-output (MIMO) is regarded as one of the key enabling technologies for next-generation communication systems. In massive MIMO cellular networks, coordinated beamforming (C
Externí odkaz:
http://arxiv.org/abs/2303.14082
With the proliferation of wireless applications, the electromagnetic (EM) space is becoming more and more crowded and complex. This makes it a challenging task to accommodate the growing number of radio systems with limited radio resources. In this p
Externí odkaz:
http://arxiv.org/abs/2103.16142
Reconfigurable Intelligent Surface (RIS) is a promising solution to reconfigure the wireless environment in a controllable way. To compensate for the double-fading attenuation in the RIS-aided link, a large number of passive reflecting elements (REs)
Externí odkaz:
http://arxiv.org/abs/2103.00709
Large intelligent surface/antennas (LISA), a two-dimensional artificial structure with a large number of reflective-surface/antenna elements, is a promising reflective radio technology to construct programmable wireless environments in a smart way. S
Externí odkaz:
http://arxiv.org/abs/1906.06578
In this paper, a novel technique, called symbiotic radio (SR), is proposed for passive Internet-of-Things (IoT), in which a backscatter device (BD) is integrated with a primary transmission. The primary transmitter is designed to assist the primary a
Externí odkaz:
http://arxiv.org/abs/1810.13068