Results 1 to 10 of about 4,925 (231)
UPLC-QTOF-MS/MS and Antifungal Activity of a Fraction Enriched in Saponins From Sarcomphalus joazeiro Against Candida spp. [PDF]
Biomed ChromatogrABSTRACT The development of antifungal resistance is a complex process that involves the interaction between hosts, drugs, and microbial factors, all of which contribute to therapeutic ineffectiveness. For this reason, studies on natural products as possible therapeutic alternatives are increasingly necessary in order to gain a better understanding of ...
da Silva ARP +12 more
europepmc +2 more sources
Multiuser Precoding Scheme Based on 3D Codebooks for Large-scale MIMO Systems [PDF]
Jisuanji gongcheng, 2017 For the co-channel interference in large-scale Multiple Input Multiple Output(MIMO) systems,this paper proposes a multiuser precoding scheme based on 3D codebooks.
ZENG Youcai,JING Xiaorong
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INTERFERENCE CANCELLERS FOR SPREAD SPECTRUM MODULATION BASED MULTIPLE ACCESS SYSTEMS
ICTACT Journal on Communication Technology, 2021 Systems based on spread spectrum technique are inherently interference resistant. However, asynchronous transmission and multipath propagation causes manifestation of multiuser interference.
Monica Khanore, Srija Unnikrishnan
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Interference avoidance and multiuser MIMO systems [PDF]
International Journal of Satellite Communications and Networking, 2003 AbstractWe apply interference avoidance methods to multiuser systems with multiple inputs and multiple outputs (MIMO) such as would be used on the uplink (or in overlapping downlink footprints) for satellite systems with multiple antennas. An arbitrary signal space can be used and the method can be applied to any MIMO system model regardless of the ...
Dimitrie C. Popescu, Christopher Rose
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Multiuser Interference-Limited Petahertz Wireless Communications Over Málaga Fading Channels
IEEE Access, 2020 Petahertz frequency bands have a unique characteristic of atmospheric scattering that enables non-line-of-sight (NLOS) communications. In this paper, we analyze the performance of petahertz wireless communications (PWC) with a novel statistical model ...
Sudhanshu Arya, Yeon-Ho Chung
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IEEE Access, 2021 Interference alignment (IA) is one of the most promising techniques to eliminate interference in multiuser multiantenna systems. Simultaneous wireless information and power transfer (SWIPT) technology is applied to harvest energy from radio frequency ...
Xiaorong Xu +3 more
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Multiuser MIMO systems and interference avoidance [PDF]
2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03)., 2004 We present the application of interference avoidance methods to multiuser systems with multiple inputs and multiple outputs. A general signal space formulation is used which makes the approach applicable to any MIMO system model regardless of the choice of basis functions.
Dimitrie C. Popescu, Christopher Rose
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Optimal Spectrum Management in Multiuser Interference Channels [PDF]
IEEE Transactions on Information Theory, 2009 In this paper, we study the non-convex problem of continuous frequency optimal spectrum management in multiuser frequency selective interference channels. Firstly, a simple pairwise channel condition for FDMA schemes to achieve all Pareto optimal points of the rate region is derived.
Zhao, Yue, Pottie, Gregory J
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A multiuser interference cancellation scheme for uplink OFDMA [PDF]
IEEE Wireless Communications and Networking Conference, 2006. WCNC 2006., 2006 In uplink orthogonal frequency division multiple access (OFDMA) systems, multiuser interference (MUI) occurs due to different carrier frequency offsets (CFO) of different users at the receiver. In this paper, we present a multistage linear parallel interference cancellation (LPIC) approach to mitigate the effect of this MUI in uplink OFDMA.
Manohar, S +3 more
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Information, 2015 Multi-user detection is an effective method to reduce multiple access interference in code division multiple access (CDMA) systems. This paper discusses a signal subspace based blind adaptive multiuser detector and a Kalman filtering blind adaptive ...
Liqing Zhou +5 more
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