Results 31 to 40 of about 958,666 (175)
Frontiers in Neuroscience, 2022 Low back pain (LBP) is known to pose a serious threat to helicopter pilots. This study aimed to explore the potential of electrical bio-impedance (EBI) technique with the advantages of no radiation, non-invasiveness and low cost, which is intended to be ...
Hang Wang +9 more
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A Pilot Study In The Development of Basic Health Services In Nepal
Journal of Nepal Medical Association, 2003 NA
Gautam Man Shakya +2 more
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The X-Files : aux frontières du fantastique
TV Series, 2022 This article proposes an analysis of a major science-fiction series of the 1990s, The X-Files (Fox, 1993-2002 / 2016-2018), and of the way it incorporates the notion of the fantastic.
Julien Achemchame
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Adaptive Pilot Clustering in Heterogeneous Massive MIMO Networks [PDF]
, 2015 We consider the uplink of a cellular massive MIMO network. Acquiring channel state information at the base stations (BSs) requires uplink pilot signaling. Since the number of orthogonal pilot sequences is limited by the channel coherence, pilot reuse across cells is necessary to achieve high spectral efficiency.
arxiv +1 more source
Journal of Pain Research, 2018 Ryckie G Wade,1,2 Claire B Paxman,3 Naomi C Tucker,3 Stephen Southern4 1Department of Plastic and Reconstructive Surgery, Leeds Teaching Hospitals Trust, Leeds, UK; 2Faculty of Medicine and Health Sciences, University of Leeds, Leeds, UK; 3Department of ...
Wade RG +3 more
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Frontiers in Nutrition, 2023 This qualitative study is nested within a 12-week pilot randomized-controlled, two-arm trial involving high-intensity progressive resistance training (PRT) or PRT with a multi-nutrient, whey-protein supplementation (PRT+WP) in sarcopenic older adults ...
Reena K. Vijayakumaran +2 more
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Exploiting Spatial Correlation for Pilot Reuse in Single-Cell mMTC [PDF]
arXiv, 2021 As a key enabler for massive machine-type communications (mMTC), spatial multiplexing relies on massive multiple-input multiple-output (mMIMO) technology to serve the massive number of user equipments (UEs). To exploit spatial multiplexing, accurate channel estimation through pilot signals is needed.
arxiv
On Hybrid Pilot for Channel Estimation in Massive MIMO Uplink [PDF]
arXiv, 2016 This paper introduces a hybrid pilot-aided channel estimation technique for mitigating the effect of pilot contamination for the uplink of multi-cell multiuser massive MIMO systems. The proposed hybrid pilot is designed such that it enjoys the complementary advantages between time-multiplexed (TM) pilot and time-superimposed (TS) pilot, and thereby ...
arxiv
On Reusing Pilots Among Interfering Cells in Massive MIMO [PDF]
arXiv, 2017 Pilot contamination, caused by the reuse of pilots among interfering cells, remains as a significant obstacle that limits the performance of massive multi-input multi-output antenna systems. To handle this problem, less aggressive reuse of pilots involving allocation of additional pilots for interfering users is closely examined in this paper ...
arxiv
Pilot Study in Qualitative Research: The Roles and Values
حیات, 2014 A pilot or preliminary study is referred to a small-scale of a complete survey or a pretest for a particular research instrument such as a questionnaire or interview guide (1). Pilot studies could be conducted in qualitative, quantitative, and even mixed
Roksana Janghorban +2 more
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