نتایج جستجو برای: overlay analysis

تعداد نتایج: 2831511  

2014
Daniele Rotolo Ismael Rafols Michael Hopkins

How can scientometric mapping function as a tool of ’strategic intelligence’ to aid the governance of emerging technologies? The present paper aims to address this question by focusing on a set of recently developed scientometric techniques, namely overlay mapping. We examine the potential these techniques have to inform, in a timely manner, analysts and decision-makers about relevant dynamics ...

Journal: :IJPEDS 2008
Raluca Marin-Perianu Hans Scholten Paul J. M. Havinga Pieter H. Hartel

We propose an energy-efficient service discovery protocol for heterogeneous wireless sensor networks. Our solution exploits a cluster overlay, where the clusterhead nodes form a distributed service registry. A service lookup results in visiting only the clusterhead nodes. We aim for minimizing the communication costs during discovery of services and maintenance of a functional distributed servi...

Hossein Ghavami, Shahriar Shirvani Moghaddam,

Minimizing the outage probability and maximizing throughput are two important aspects in device to device (D2D) communications, which are greatly related to each other. In this paper, first, the exact formulas of the outage probability for D2D communications underlaying or overlaying cellular network are derived which jointly experience Additive White Gaussian Noise (AWGN) and Rayleigh multipat...

2017
Kunwar Pal Mahesh Chadra Govil Mushtaq Ahmed

With a sudden surge in demand for live video streaming using peer to peer (P2P) network, there has been a rise of traffic in media transmission applications that employ this P2P approach. P2P is a decentralized media communication method which is more cost effective, and scalable. However, the traditional peer to peer network architecture has several limitations, and overlay construction is one...

Journal: :international journal of iron & steel society of iran 2015
k. amini a. bahrami h. sabet

mo40 low-alloy steels are mostly used to produce industrial components such as crane wheels whichare exposed to abrasive wear. however, during working conditions, their wear resistance is reduced aftera while due to its low hardness. with increasing abrasive wear, the dimensions of components decreaseand they need to be repaired for surface modification. in this regard, hard overlay coatings ar...

Journal: :EURASIP Journal on Wireless Communications and Networking 2015

2002
Miguel Castro Peter Druschel Y. Charlie Hu Antony Rowstron

Generic peer-to-peer (p2p) overlay networks like CAN, Chord, Pastry and Tapestry offer a novel platform for a variety of scalable and decentralized distributed applications. These systems provide efficient and fault-tolerant routing, object location and load balancing within a self-organizing overlay network. One important aspect of these systems is how they exploit network proximity in the und...

Journal: :IEEE Trans. Vehicular Technology 2002
Chang Soon Kang Dan Keun Sung

This paper is concerned with the capacities of spectrally overlaid narrow-band and wide-band systems using two code-division multiple-access (CDMA) techniques: a single-code and a multicode. The capacity is defined here as the maximally achievable total throughput in the narrow-band and wide-band subsystems. User signal power in the overlay systems affects the performance of the systems. The si...

2001
Jörg Liebeherr Michael Nahas

Recently, application-layer multicast has emerged as an attempt to support group applications without the need for a network-layer multicast protocol, such as IP multicast. In application-layer multicast, applications arrange themselves as a logical overlay network and transfer data within the overlay network. In this paper, Delaunay triangulations are investigated as an overlay network topolog...

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