The standardization of the next generation 5G radio access technology has just started in 3GPP with ambition making it commercially available by 2020. There are a number features that unique for compared to previous generations such as wide range carrier frequencies and deployment options, diverse use cases very different user requirements, small-size base stations, self-backhaul, massive MIMO, large channel bandwidths. In this article, we propose flexible physical layer NR meet...

5G New Radio (NR) access technology is envisioned to operate in sub-1 GHz 100 spectrum and support diverse use cases, including Internet-of-Things (IoT), Enhanced Mobile Broadband (eMBB), Multimedia-Broadcast Single Frequency Network (MBSFN). NR currently being standardized the 3rd Generation Partnership Project (3GPP). In order address scenarios deployments, a scalable CP-OFDM waveform has been approved 3GPP as part of physical layer design for both uplink downlink transmissions. The sense...

City-wide control and coordination of traffic flow can improve efficiency, fuel consumption, safety. We consider the problem controlling lights under fixed adaptive routing vehicles in urban road networks. Multicommodity back-pressure algorithms, originally developed for scheduling communication networks, are applied to networks adaptively reroute vehicles. The performance algorithms is analyzed using a microscopic simulator. results demonstrate that proposed multicommodity provide...

Sub-Saharan Africa bears a disproportionate burden of mortality from trauma. District hospitals, although not trauma centres, play critical role in the care system by serving as frontline hospitals. However, clinical characteristics patients receiving African district hospitals remains under-described and is barrier to development. We aim describe at analysing prototypical hospital emergency centre. An observational study was conducted August, 2014 Wesfleur Hospital, facility Western Cape...

5G radio access technology is envisioned to operate from sub-1 GHz 100 using a wide range of deployment options and support diverse services. This paper proposes OFDM numerology frame structure for access. The proposed keeping in view realistic propagation channel measurements, mobility, effect phase noise, implementation complexity. both FDD TDD. flexible, scalable, fulfills low latency requirements.

<b>Aim:</b> To evaluate the success rate and complications of pneumatic retinopexy performed at a university hospital to identify which patients are best suited for retinopexy. <b>Methods:</b> This was an interventional case series. Retrospective review 61 who had by two retina surgeons University California, San Francisco hospitals between 1998 2004. Patients been treated rhegmatogenous retinal detachment (RRD) with were identified reviewing operative reports billing records. The primary...

Direct numerical simulation is used to study the dynamics of particle settling for Reynolds number from 0.1 50 and solid volume fraction single 0.4. The principle investigations are effects on average velocity, velocity fluctuations particles structuring during settling. It observed that deviates well-known power law dilute suspension moderate range number. Moreover, increase with domain size saturates becomes about constant numbers in contrast low which keep increasing. These behaviors due...

The problem of remotely stabilizing a noisy linear time invariant plant over Gaussian relay network is addressed. comprised sensor node, group nodes and remote controller. the operate subject to an average transmit power constraint they can cooperate communicate observations plant's state communication links between all are modeled as channels. Necessary well sufficient conditions for mean-square stabilization various topologies derived. in general obtained using delay-free policies...

Observed Time Difference of Arrival (OTDOA) is a downlink positioning method in Long Term Evolution (LTE) networks, which User Equipment (UE) measures the time arrival (TOA) reference signals received from multiple base stations. The TOA measurements are reported to network terms signal difference (RSTD) measurements, used determine position UE. accuracy estimated relies on measured and RSTDs (equivalently TOAs). A UE can by measuring delay first channel tap impulse response. This usually...

This paper provides an overview and preliminary comparison of several multi-carrier single-carrier waveforms that are potential candidates for future 5G mobile radio communications above 6 GHz. The assessed primarily based on the established known results as well recent findings keeping in view design requirements relevant to using frequencies GHz, especially millimeter wave frequencies. Key Performance Indicators degrees freedom different their applications mm-wave discussed. Certain...

Frequencies above 6 GHz are being considered by mobile communication industry for the deployment of future 5G networks. However in higher carrier frequencies, especially millimeter-wave frequencies (above 30 GHz), there can be severe degradations transmitted and received signals due to Phase Noise (PN) introduced local oscillators. In this paper, effect PN has been investigated Orthogonal Frequency Division Multiplexing (OFDM), Offset QAM Filter-Bank Multi-Carrier (OQAM-FBMC) (QAM-FBMC). The...

In this paper, we study the joint impact of three major RF impairments, namely, oscillator phase noise, power amplifier nonlinearity and I/Q imbalance on performance a mm-wave communication link based OFDM modulation. General impairment models are first derived for describing effects in each TX, RX as well link. Based obtained signal initial air interface de-sign from mmMAGIC project, numerically evaluate impairments channel estimation terms channel-to-noise ratio (CNR) also fluctuation due...

The problem of closed-loop stabilization two scalar linear time invariant systems over noisy multiple-access and broadcast communication channels with arbitrarily distributed initial states is addressed. We propose to use control schemes based on the coding introduced by Ozarow et al. for noiseless feedback which are extensions Schalkwijk-Kailath scheme. By employing proposed channels, we derive stability regions those sufficient mean square linearly controlled LTI systems.

Settling dynamics of non-Brownian particles is investigated using particle-resolved direct numerical simulations. There are two aims this paper: first to study the variation particle velocity fluctuations with solid volume for a wide range settling Reynolds number; second investigate effects fraction and number on distribution after reaching steady state. Simulations performed in periodic domain varied from 0.5 400 0.01 0.2, respectively. It observed that increase less than 100. Further...

The problem of controlling traffic lights under adaptive routing vehicles in urban road networks is considered. Multi-commodity back-pressure algorithms, originally developed for and scheduling communication networks, are applied to control adaptively reroute vehicles. performance the algorithms analyzed using a microscopic simulator. results demonstrate that proposed signal can provide significant improvement over fixed schedule single-commodity controller, terms various metrics, including...

In a fully periodic domain, monodisperse particles form clusters while settling in stagnant fluids at high Reynolds numbers (Re &amp;gt; 250) and dilute suspensions (solid volume fraction less than 1%). This is due to the entrapment of wakes developed by upstream particles. this paper, phenomenon investigated for containing different sizes that shed vortices during settling. To model particle–fluid particle–particle interactions, immersed boundary method discrete element are used,...

We consider a Gaussian multiple-access relay channel with multiple sources, and destination. assume that the received signals at destination from different nodes are orthogonal. Additionally, we performs an instantaneous mapping to compress all sources into one output symbol. refer this as analog network coding. optimize coding maximize achievable sum rate. additionally introduce algorithm obtain rate region. The optimized mappings in general non-linear provide superior rates compared those...