Notwithstanding its infancy, wireless mesh networking (WMN) is a hot and growing field. Wireless mesh NETWORKS began in the military, but have since become of great interest for commercial use in the last decade, both in local area NETWORKS and metropolitan area NETWORKS. The attractiveness of mesh NETWORKS comes from their ability to interconnect either mobile or fixed devices with radio interfaces, to share information dynamically, or simply to extend range through multi-hopping.
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Advances in communication and networking technologies are rapidly making ubiq- uitous network connectivity a reality. Wireless NETWORKS are indispensable for supporting such access anywhere and at any time. Among various types of wire- less NETWORKS, multihop wireless NETWORKS (MWNs) have been attracting increasing attention for decades due to its broad civilian and military applications. Basically, a MWN is a network of nodes connected by wireless communication links. Due to the limited transmission range of the radio, many pairs of nodes in MWNs may not be able to communicate directly, hence they need other intermediate nodes to forward packets for them. Routing in such NETWORKS is an important issue and it poses great challenges.
標簽： Multihop Wireless NETWORKS
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Never have telecommunications operations and network management been so important. Never has it been more important to move away from practices that date back to the very beginning of the telecommunications industry. Building and con- necting systems internally at low cost, on an as - needed basis, and adding software for supporting new NETWORKS and services without an overall architectural design will not be cost effective for the future. Defi ning operations and network manage- ment requirements at the 11th hour for new technologies, NETWORKS, and services deployments must also change.
標簽： Telecommunications Generation NETWORKS Next
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The telecommunications industry has seen a rapid boost within the last decade. New realities and visions of functionalities in various telecommunications NETWORKS have brought forward the concept of next-generation NETWORKS (NGNs). The competitions among operators for support- ing various services, lowering of the cost of having mobile and cellular phones and smartphones, increasing demand for general mobility, explosion of digital traffic, and advent of convergence network technologies added more dynamism in the idea of NGNs. In fact, facilitating con- vergence of NETWORKS and convergence of various types of services is a significant objective of NGNs.
標簽： Next-Generation Converged NETWORKS
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Emerging technologies such as WiFi and WiMAX are profoundly changing the landscape of wireless broadband. As we evolve into future generation wireless NETWORKS, a primary challenge is the support of high data rate, integrated multi- media type traffic over a unified platform. Due to its inherent advantages in high-speed communication, orthogonal frequency division multiplexing (OFDM) has become the modem of choice for a number of high profile wireless systems (e.g., DVB-T, WiFi, WiMAX, Ultra-wideband).
標簽： OFDM-Based Broadband NETWORKS Wireless
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The roots of this book were planted about a decade ago. At that time, I became increasingly convinced that wide-area and metropolitan-area NETWORKS, where much of my group’s research has been centered at that time, were in good shape. Although research in these fields was (and still is) needed, that’s not where the networking bottleneck seemed to be. Rather, the bottleneck was (and still is in many places) in the access NETWORKS, which choked users’ access to information and services. It was clear to me that the long-term solution to that problem has to involve optical fiber access NETWORKS.
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Performance analysis belongs to the domain of applied mathematics. The major domain of application in this book concerns telecommunications sys- tems and NETWORKS. We will mainly use stochastic analysis and probability theory to address problems in the performance evaluation of telecommuni- cations systems and NETWORKS. The first chapter will provide a motivation and a statement of several problems.
標簽： Communications Performance Analysis NETWORKS of
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Transmit power in wireless cellular NETWORKS is a key degree of freedom in the management of interference, energy, and connectivity. Power control in both uplink and downlink of a cellular network has been extensively studied, especially over the last 15 years, and some of the results have enabled the continuous evolution and significant impact of the digital cellular technology.
標簽： Cellular NETWORKS Wireless Control Power in
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The first question most readers of an O’Reilly book might ask is about the choice of the cover animal. In this case, “why a duck?” Well, for the record, our first choice was a unicorn decked out in glitter and a rainbow sash. That response always gets a laugh (we are sure you just giggled a little), but it also brings to the surface a common perception of software-defined NETWORKS among many expe‐ rienced network professionals. Although we think there is some truth to this perception, there is certainly more meat than myth to this unicorn.
標簽： NETWORKS Software Defined SDN
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Part I provides a compact survey on classical stochastic geometry models. The basic models defined in this part will be used and extended throughout the whole monograph, and in particular to SINR based models. Note however that these classical stochastic models can be used in a variety of contexts which go far beyond the modeling of wireless NETWORKS. Chapter 1 reviews the definition and basic properties of Poisson point processes in Euclidean space. We review key operations on Poisson point processes (thinning, superposition, displacement) as well as key formulas like Campbell’s formula. Chapter 2 is focused on properties of the spatial shot-noise process: its continuity properties, its Laplace transform, its moments etc. Both additive and max shot-noise processes are studied. Chapter 3 bears on coverage processes, and in particular on the Boolean model. Its basic coverage characteristics are reviewed. We also give a brief account of its percolation properties. Chapter 4 studies random tessellations; the main focus is on Poisson–Voronoi tessellations and cells. We also discuss various random objects associated with bivariate point processes such as the set of points of the first point process that fall in a Voronoi cell w.r.t. the second point process.
標簽： Stochastic Geometry NETWORKS Wireless Volume and
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