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MIMO time reversal communications
Proceedings of the second workshop on Underwater networks - WuWNet '07, 2007A time reversal mirror (TRM) exploits spatial diversity to achieve spatial and temporal focusing, a useful property for communications in an environment with significant multipath. Temporal focusing (pulse compression) mitigates intersymbol interference (ISI) while spatial focusing enables a straightforward extension to multiple-input/multiple-output ...
Hee-Chun Song +2 more
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Asynchronous Cooperative MIMO Communication
2007 5th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks and Workshops, 2007We consider a cluster-based cooperative transmission scheme where the source node and destination node form clusters for transmission. Instead of using perfect synchronization technique, we assume the cooperative transmission is asynchronous. Each member in transmitting cluster relays signal to the receiving cluster after obtaining information from ...
Hsin-Yi Shen, Shivkumar Kalyanaraman
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Asynchronous Polarized Cooperative MIMO Communication
VTC Spring 2009 - IEEE 69th Vehicular Technology Conference, 2009In cooperative wireless network, the users exploit spatial diversity by cooperating with each other. This alleviates the detrimental effects of fading and offers reliable data transfer. In this paper, we present a novel asynchronous cooperative multi-input multi-output (MIMO) communication scheme in the presence of polarization diversity which does not
Sarmad Sohaib, Daniel K. C. So
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The MIMO antenna as a communication channel
2007 IEEE Antennas and Propagation Society International Symposium, 2007The understanding of the connections between information theory and electromagnetic theory is a new topic which is attracting a fast growing number of researchers. This work represents a further contribution toward the understanding of the connections between these two theories. In particular, in this contribution the antenna is discussed from an usual
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Chaotic Communications in MIMO Systems
2007In wireless communications, chaotic communications have been a field of interest due to its low complexity in hardware implementation and low power consumption in chaotic signal generation. Among the modulation schemes using the chaotic signal, Differential Chaos Shift Keying (DCSK) is a robust noncoherent technique.
Karuna Thapaliya +2 more
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Beampattern Shaping for Coexistence of Cognitive MIMO Radar and MIMO Communications
2020 IEEE 11th Sensor Array and Multichannel Signal Processing Workshop (SAM), 2020This paper focuses on designing a set of transmit sequences for coexisting cognitive Multiple-Input Multiple-Output (MIMO) radar and MIMO communications (MRMC) systems. The aim is to shape the transmit beampattern to minimize the spatial Integrated Side-lobe Level (ISL) while having a good response on a desired direction in cognitive paradigm.
Ehsan Raei +2 more
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Is MIMO the future of wireless communications?
Computer, 2004Wireless-system designers are faced with numerous challenges, including limited availability of radio-frequency spectrum and transmission problems caused by such factors as fading and multipath distortion. Meanwhile, there is increasing demand for higher data rates, better-quality service, fewer dropped calls, and higher network capacity. Meeting these
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Networked Optical Massive MIMO Communications
IEEE Transactions on Wireless Communications, 2020The low cost and versatility of optical devices make it possible to pack a large number of optical transceivers into arrays and exploit massive multiple-input multiple-output (MIMO) transmission in optical wireless communications. Nevertheless, optical massive MIMO presents several distinct challenges such as, the line-of-sight propagation and ...
Chen Sun 0004 +3 more
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Joint System Design for Coexistence of MIMO Radar and MIMO Communication
IEEE Transactions on Signal Processing, 2018This paper considers the joint design of a multiple-input multiple-output (MIMO) radar with co-located antennas and a MIMO communication system. The degrees of freedom under the designer's control are the waveforms transmitted by the radar transmit array, the filter at the radar array and the code-book employed by the communication system to form its ...
Junhui Qian +4 more
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2012
The multiple input multiple output (MIMO) technique provides the higher bit rate and the better reliability in wireless systems. These advantages are achieved by designing appropriate apace-time codes that provide diversity improvement, spatial multiplexing gain, or a trade-off between diversity order and spatial multiplexing.
Abbas Mohammadi, Fadhel M. Ghannouchi
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The multiple input multiple output (MIMO) technique provides the higher bit rate and the better reliability in wireless systems. These advantages are achieved by designing appropriate apace-time codes that provide diversity improvement, spatial multiplexing gain, or a trade-off between diversity order and spatial multiplexing.
Abbas Mohammadi, Fadhel M. Ghannouchi
openaire +1 more source