Small Animal Soft Tissue Surgery

Edisi

-

ISBN/ISSN

978 1 84593 821 5

Deskripsi Fisik

404 hlm

Judul Seri

-

No. Panggil

-

Guide to Computer Network Security ; Computer Communications and Networks

Edisi

Fourth Edition

ISBN/ISSN

9783319556062

Deskripsi Fisik

563 hlm

Judul Seri

Computer Communications and Networks

No. Panggil

-

User Cooperation for 5G Wireless Access Networks

Abstract: Device-to-device (D2D) connectivity is one of the main enablers for future fifth generation (5G) radio access networks. In this paper, we introduce a new model for user cooperation in 5G radio access networks termed frequency-selective soft forwarding (SF). SF is based on soft-processing by a target user equipment (TUE) of selectively forwarded soft information data by a set of coope…

Techno-Economical Comparison of Dynamic DAS and Legacy Macrocellular Densific…

In order to support anywhere and anytime services of Beyond 4G networks, new deployment solutions will be required that can cost-effectively address the capacity demand of the future and also offer consistently high bit rates and decent quality of service throughout the network coverage area. In this article we look into an advanced outdoor distributed antenna system (DAS) concept, dynamic DA…

ROC Performances of Constant False Alarm Coded Anti-collision Radar in Multi-…

Active safety systems such as anticollision radar play a major role in reducing traffic accidents. The principal task of the radar is to detect the presence of targets and estimate their positions. To make this task, the system called coded anticollision radar use a code at transmission and correlation at reception. The actual used codes are the BPRS sequences but they are not sufficient to sha…

Robust RF Beamforming for Millimeter Wave MIMO–OFDM Systems

In conventional multiple-input multiple- systems, each antenna is connected to a radio-frequency (RF) chain. Due to the tiny wavelength of millimeter waves (mmWave), tens of antennas can be packed into a small area in mmWave transceivers. However, implementing an RF chain for each antenna is impractical due to the high cost and power of mixed-signal devices. In order to reduce the cost and ge…

Receiver Initiated Transmission Strategies Applied to Street Lighting Systems…

The draft document of the new IEEE 802.15.4e specification assumes receiver initiated transmission (RIT) to reduce energy consumption of wireless sensors by turning off the radio periodically, even if they operate in mesh topology. The original contribution from this paper is developing and evaluating the RIT strategies intended for street lighting systems using wireless sensor networks to cont…

Predictive Timely Trigger and Performance Optimization for Deterministic Hand…

Pre-registration as an important feature in FIMPv6, ensures providing the continuous mobility services for the end-users roaming across heterogeneous wireless networks, and is achieved by obtaining the timely and precise link layer (L2) trigger in the handover preparation. Firing the L2 trigger in the timely manner for deterministic handovers hence is crucial for guaranteeing the handover perfo…

Performance Analysis of SNR Based Scheduling Scheme for MIMO OSFBC-OFDM Syste…

High performance of MIMO-OFDM wireless systems is very much desirable. In this paper, we study the performance analysis of scheduling schemes for multiuser MIMO-OFDM systems employing Orthogonal Space-Frequency Block Coding in g–l fading scenario over frequency selective fading channels. We analyze the advantages of user scheduling in MIMO-OFDM systems employing OSFBC and adaptive modulation…

On-Line Location Prediction Exploiting Spatial and Velocity Context

We treat the problem of movement prediction as a classification task. We assume the existence of a (gradually populated and/or trained) knowledge base and try to compare the movement pattern of a certain object with stored information in order to predict its future location. We introduce a novel distance metric function based on weighted spatial and velocity context used for location prediction…

On the Impact of LTE-U on Wi-Fi Performance

With the exponential growth in mobile data traffic taking place currently and projected into the future, mobile operators need cost effective ways to manage the load of their networks. Traditionally, this has been achieved by offloading mobile traffic onto Wi-Fi networks due to their low cost and increasingly ubiquitous deployment. Recently, LTE operating in the unlicensed spectrum has drawn s…

On the Energy Utilization of WSN Communications Using Space-Time Block Coding…

Abstract: Energy is a scarce and most vital resource in a wireless sensor network (WSN). Since space-time block coding requires less transmission energy than SISO technique for the same bit error rate (BER), therefore, it is one of the most practical diversity technique for WSN studies. In this work, we have investigated the energy utilization of a simple multiple-input single-output system usi…

Multiple Narrowband Interference Cancellation in High Data Rate UWB Body Area…

Body area networks (BAN) are being developed to serve the mankind, for detection of diseases and tracking of patients. And ultra wideband (UWB) has become the most preferred candidate for the physical layer of BAN. However, UWB BAN will suffer from the interferences from existing wireless networks. Though a number of mitigation techniques have been developed for UWB they will not be feasible f…

Modeling of the Passive UHF RFID Multipath Channel for Tag Read Region Estima…

The estimation of tag read and no-read zones is the most important preliminary planning step in radio-frequency identification (RFID) system installations. Today, in the ultra-high frequency band (UHF: 860–960 MHz), this estimation is based on either a free-space or a simplified multipath channel model for the signal propagation in the wireless link between the interrogator and the tag. Using…

Modeling and Performance Analysis of an Improved Data Channel Assignment (DCA…

In this paper, we present an efficient data channel assignment (DCA) scheme for a mixed cell (i.e., a 3G cell with embedded WLANs). Our effort is essential to increase the data request (i.e., a call) handling capacity in 3G systems, with a ‘low request dropping probability’. In UMTS-first DCA scheme prefers 3G channel in dual coverage and reduces vertical handoffs from 3G to WLAN. But it de…

Modeling and Analysis of Link Duration in Vehicular Ad Hoc Networks Under Dif…

Modeling and analysis of communication link duration in vehicular ad hoc networks (VANETs) is crucial as it directly affects many performance metrics such as packet delivery ratio, throughput and end-to-end delay. In this paper, we investigate the properties of communication link duration in one-dimensional VANETs for different fading channel conditions. We employ a stochastic microscopic mobil…

Mobility Management for 6LoWPAN Wireless Sensor Networks in Critical Environm…

Abstract: This paper proposes a mobility management protocol for 6LoWPAN wireless sensor networks. In this protocol, the 6LoWPAN architecture is proposed, and both the hierarchical IPv6 address structure and the address configuration algorithm for 6LoWPAN WSN are presented. Based on the proposed architecture, the intra-network and inter-network mobility handover algorithms are proposed. In the…

Minimizing Expected Transmissions Multicast in Wireless Multihop Networks

We address the multicast problem in a wireless multihop network in the presence of errors. Finding the multicast schedule that minimizes the expected number of transmissions, while accounting for both the wireless broadcast advantage (WBA) and the wireless unreliable transmission (WUT) characteristics, has not been solved optimally before. We formally define the problem and propose an initial a…

Measuring QoS Metrics in Femto/Macro Cellular Networks with CAC Policy

Due to the growing importance of deploying femtocell technology in the current mobile network operators, data traffic processing and handover (HO) management in such networks are challenging issues. Consequently, due to the mobility of femto users between indoor and outdoor environments, the HO traffic interplay between macrocell and femtocells should be addressed, by determining accurate HO ra…

Low-Load Survivable Routing Protocol for LEO Satellite Networks

Abstract: In this paper, we put forward the methods of footprint shift and separation for the virtual topology model of LEO satellite networks, which can reduce the effects of the Polar Regions and cross-seam inter-satellite-links (ISLs) on the virtual topology and improve the utilization of ISLs. Furthermore, a low-load survivable routing protocol called Virtual Snapshot Routing Protocol is p…

Integrating RFID Transponders as Data Loggers in Wireless Sensor Nodes for Ou…

In this paper the integration of an RFID system into a wireless sensor node based on an Arduino board is discussed. The main purpose of the proposed solution is to use the memory of a passive RFID transponder to store the data retrieved by the sensors composing the node. This solution can be employed for remote monitoring operations, when no connection is available and then no remote data colle…

Game Theory Based Cooperative MIMO Routing Scheme for Lifetime Enhancement of…

The lifetime of wireless sensor network (WSN)is reduced due to the impact caused by channel fading, interference and unbalanced energy consumption. The node’s energy is wasted due to uneven energy consumption for various processes. Communicating the data from source to sink node will consume more power compared to data sensing and processing etc. The channel fading is mitigated through spatia…

Evaluation of Energy Efficiency-Reconstruction Error Trade-Off in the Co-desi…

In the recent years, the technological improvements on wireless sensor computational capability and versatility have caused a massive use of battery-supplied Wireless Sensor Network (WSN) in many different monitoring applications. The most relevant factors of reliability of such systems are related to the energetic autonomy and the accuracy of the sampled data delivered to the Fusion Center. T…

Enhance Internet Access Ability for Ad Hoc Network with On-Demand Gateway Bro…

Gateway discovery is a fundamental process in interconnecting mobile ad hoc network with the Internet. Traditional gateway discovery algorithms adopt the method of periodically broadcast advertisements with a time interval. However, this method does not fulfill the actual requirements from the source nodes and produces some unnecessary overhead. To solve this problem, this paper adopts a novel …

Energy-Efficient Distributed Target Tracking in Wireless Video Sensor Networks

In order to prolong the lifetime of wireless video sensor networks (WVSNs), many methods for visual target tracking are proposed to reduce the energy cost of batterypowered video sensor nodes. Focus on reducing the amounts of image data for computation and communication, this paper presents an energy-efficient method for distributed target tracking inWVSNs. The major Contributions of the propo…

Density Function of the Received Signal in OFDM-based Distributed Detection F…

Probability density function (pdf) of the received signal is necessary for the distributed detection fusion when the unreliable channels between the local sensors and the fusion center are considered. Hitherto study has never been made on the statistical distribution of the demodulated OFDM signal over multipath fading channel. Modeling the OFDM system over the multi-path channel, we derived th…

Coverage Radius Bounds and Impact on SINR in Blindly Placed LTE Femtocells

An important issue affecting cellular networks is to make services available to regions of bad or no reception. Femtocells are considered to be the solution to meet the future needs for better indoor coverage, high data rates and capacity in the cellular networks. Since femtocell access points (FAPs) are usually user deployed, thus blind placement of FAPs is inevitable leading to problems of po…

Cooperative Resource Allocation in Multicast Networks for Outage Probability …

In this paper, we investigate the resource allocation issues in Orthogonal frequency division multiplexing access-based multicast systems that only allows average channel state information of users to be available at the resource manager. In this system, it is impossible to guarantee successful transmission of every data due to instant deep fading. Hence, in order to achieve efficient and reli…

Comparative Analysis of Routing Protocols in Wireless Sensor–Actor Networks…

Wireless sensor–actor networks (WSANs) are applicable in versatile domains ranging from very common to those which demand reliable actions in the event area. The unique characteristics of WSANs and the resourceconstrained nature of the constituent sensor nodes give rise to design energy and delay efficient routing protocols. Many researchers have made considerable efforts to meet these challe…

Channel Selection and Access Density Analysis Based on Random Matrix in WSN

In the paper, a kind of channel noise produced by nodes accessing channel was considered, and this noise was compared with Middleton Class-A noise. It was assumed that the time, space, frequency of channel accessed by nodes were randomized, hence the channel selection can be described as a random matrix. And the random matrix were approximately calculated and analyzed by Krylov subspace method …

An Efficient Multi-carrier Resource Allocation with User Discrimination Frame…

In this paper, we present an efficient resource allocation with user discrimination framework for 5G Wireless Systems to allocate multiple carriers resources among users with elastic and inelastic traffic. Each application running on the user equipment (UE) is assigned an application utility function. In the proposed model, different classes of user groups are considered and users are partition…

Adaptive Transmission in a MIMO-OFDM System in Nakagami-m Fading Channels

The goal of fourth generation (4G) mobile communications system is to seamlessly integrate a wide variety of communication services such as high speed data, video and multimedia traffic as well as voice signals. One of the promising approaches in 4G is the Adaptive Orthogonal Frequency Division Multiplexing (AOFDM) technique. In Multiple Input Multiple Output (MIMO)- OFDM, adaptive transmissio…

Access Disparity Mitigation in Multi-hop Wireless Networks

n Multi-hop Wireless Networks (MWNs), the end-to-end performance degrades exponentially with hop counts and the degree of traffic aggregation at each hop. Fair allocation of bandwidthamong nodes is one of the challenging problems in MWNs. The IEEE 802.11 distributed coordination function standard stipulates long-term equalization of throughput among stations by giving the same number of transm…

A Novel Series Expansion for Symbol Error Rates of Selected Modulation Scheme…

In this paper, a comparative study of the simulated symbol error rate (SER) with the theoretical SER of uncoded communication systems is made for selected modulation schemes with and without fading. Slow fading Weibull and Rayleigh channels are considered in this paper. The modulation schemes considered are (1) Binary Phase Shift Keying, (2) Quadrature Phase Shift Keying, (3) Orthogonal Freque…

A Novel Mobility-Based Routing Protocol for Semi-Predictable Disruption Toler…

This letter considers routing in delay tolerant networks whereby nodes have semi-predictable mobility patterns within a time period. We propose a mobility-based routing protocol (MBRP) where nodes construct a space–time graph dynamically. As the space–time graph may be incomplete, MBRP presents a heuristic that evaluates encountered nodes based on their recorded mobility patterns in order t…

A Design of Modulator and Demodulator for a Passive UHF RFID Tag Using DTMOST…

This paper presents a modulator and low power ASK demodulator that uses a new technique. This technique uses the dynamic threshold MOSFET to reduce the threshold voltage of diodes connected MOS transistors as a barrier in the design of the envelope detector. This circuit has been simulated in a 90 nm CMOS technology to satisfy EPC Class 1 Generation 2 standard protocol. The proposed circuit can…

A Coherent PMI Estimation Scheme for Double Codebook

The double codebook structures are proposed and applied in LTE-advanced, which can track both longterm and short-term channel state information. In traditional incoherent estimation, precoding matrix indicators (PMI) estimation is performed on each individual subcarrier and some form of averaging procedure then follows to combine the results from individual narrow-band processing. As a result, …

Statistical Approximation of Efficient Caching Mechanisms for One-Timers

Abstract With the increasing diversity of network services and applications, caching technologies for content delivery networks (CDNs) and information-centric networking (ICN) have become beneficial to improve the service quality such as communication latency by storing content data on network nodes near to users. Cache performance depends on the memory size at each node as well as the request…

Routing Algorithms for Network Function Virtualization Enabled Multicast Topo…

Abstract Many multicast services such as live multimedia distribution and real-time event monitoring require multicast mechanisms that involve network functions (e.g., firewall and video transcoding). Network function virtualization (NFV) is a concept that proposes using virtualization to implement network functions on infrastructure building block (such as high volume servers and virtual mac…

Design, Modeling, and Simulation of On-Demand Communication Mechanisms for Cy…

Abstract Advanced communication technology is the enabling factor for distributed sensing and control in smart grid. The performance of communication has a significant effect on the performance of the controllers that manage a power system. This effect is more profound when transient level behavior and critical applications are concerned. In these cases, an important issue is to design contro…

Communication Theoretical Understanding of Intra-Body Nervous Nanonetworks

Emerging nanoscale applications, e.g., nanoscale cooperative intelligent drug delivery or multiple intra-body nanosensors for health monitoring, mandate enabling nanomachines to communicate with each other, and hence, form nanonetworks to overcome the limitations of a single nanomachine. Indeed, the human body is a massive nanoscale molecular communications network composed of billions of inter…

A multi-level hierarchical communication network architecture for distributed…

Abstract Power systems have been dramatically changing with cutting-edge information technologies. The new power system infrastructure has evolved and has been studied by many institutes and companies. Future power systems are bound up quietly with customer-side activities such as realtime pricing and distributed generators (DGs). To deploy those services on the power system, independent and …

Recover Fault Services via Complex Service-to-Node Mappings in Wireless Senso…

Abstract With the motivation of seamlessly extending wireless sensor networks to the external environment, service-oriented architecture comes up as a promising solution. However, as sensor nodes are failure prone, this consequently renders the whole wireless sensor network to seriously faulty. When a particular node is faulty, the service on it should be migrated into those substitute sen…

Cooperative Caching in a Content Centric Network for Video Stream Delivery

Abstract Recent work on Information Centric Networking enables the exploitation of the caching resources of the new generation of routers [Content Routers (CR)]. So far, only a basic Least Recently Used strategy implemented on every CR has been proposed. In this paper, we introduce a cooperative caching strategy in the context of a Content-Centric-Network (CCN). This strategy has been designe…

Fast and Efficient Bandwidth Reservation Algorithms for Dynamic Network Provi…

Abstract Large-scale collaborative e-science requires fast and reliable data transfer with guaranteed performance, which is made possible by reserving bandwidth as needed in advance in high-performance networks. In scientific applications, users typically know the data size, the data available time, and the deadline to finish the data transfer, and they always wish to achieve the earliest pos…

An Autonomic Traffic Classification System for Network Operation and Management

Abstract Traffic classification is an important aspect in network operation and management, but challenging from a research perspective. During the last decade, several works have proposed different methods for traffic classification. Although most proposed methods achieve high accuracy, they present several practical limitations that hinder their actual deployment in production networks. …

CAR: Coding-Aware Opportunistic Routing for Unicast Traffic in Wireless Mesh …

Abstract An intermediate node in an inter-flow network coding scheme needs to know exactly which are the previous hop and next hop of a packet before coding. It is difficult to incorporate inter-flow network coding into opportunistic routing (OR) because the next hop of a packet in OR can’t be determined in advance. Coding-aware opportunistic routing (CAR) is proposed in this paper to ad…

Two Heuristics for Calculating a Shared Risk Link Group Disjoint Set of Paths…

Abstract A shared risk link group (SRLG) is a set of links which share a common risk of failure. Routing protocols in Generalized MultiProtocol Label Switching, using distributed SRLG information, can calculate paths avoiding certain SRLGs. For single SRLG failure an end-to-end SRLG-disjoint path pair can be calculated, but to ensure connection in the event of multiple SRLG failures a set …

Online Incremental Clock Synchronization

Abstract Time synchronization is a fundamental requirement for many services provided by distributed systems. For this purpose, several time synchronization protocols have been proposed. However, they either achieve high accuracy by adding further network traffic, even more than common protocols such as network time protocol and precision time protocol, or consume a lot of time in addition…

Designing an Internet Traffic Predictive Model by Applying a Signal Processin…

Abstract Detection of abnormal internet traffic has become a significant area of research in network security. Due to its importance, many predictive models are designed by utilizing machine learning algorithms. The models are well designed to show high performances in detecting abnormal internet traffic behaviors. However, they may not guarantee reliable detection performances for new inc…