Keep your network safe from security disasters with a dependable recovery strategy Companies are finally learning that a network disaster recovery plan is mandatory in these times, and they must be prepared to make difficult choices about network security. In the information-packed pages of this book, Annlee Hines shares her unique and diverse work experience. She explains that the first thing you need, whatever your business may be, is reliable information and an idea of what you need to protect, as well as what you are protecting it from. She then dives into a discussion of how much you can expect to spend depending on what kind of security your network requires. She also delves into addressing the variables that determine why your needs will not necessarily be the needs of your closest competitor. Most importantly, Hines writes this valuable material realizing that you already know how to do your job –it's just that you now have to reconsider just how vulnerable the information nervous system of your company really is. From major terrorist attacks to natural disasters to hackers, Annlee Hines explores how to defend your network and reviews such topics as: * Probes, viruses, worms, and Trojan horses * The most common vulnerabilities networks face * Understanding and justifying costs * Lessons to be learned from successful defense strategies * Preparing for the worst and the requirements of network survival * Remedies, cyber recovery, and restoration
The explosive growth of mobile internet and bandwidth-intensive applications is creating a huge demand for bandwidth. The backbone networks spanning large areas are subject to various failures, such as natural disasters, operation errors, and malicious attacks. A robust network provisioning scheme that can survive failures is desirable to avoid data and revenue loss. Multipath provisioning can significantly outperform conventional single-path provisioning in resource efficiency, service resilience, and flexibility. This book investigates the algorithm design for multipath provisioning considering the differential-delay constraints. This book has proposed novel adaptive methods for disaster failure protection and recovery. The algorithm presented in this book has practical usage significances for modern data center service provisioning. It also provides a good guidance for multipath provisioning research.
Network survivability is one of the key issue when designing a network. It has a crucial importance, especially for telecommunication networks, since a very large part of the economical activities uses telecommunication infrastructures. The aim of network engineers is hence to ensure both survivability, by satisfying some connectivity requirements, and quality of service (QoS). In this book, we propose a mathematical analysis of the problem of designing a minimum cost survivable and QoS-constrained network, where a high level of connectivity is required and QoS is guarantied by limiting the number of hop in each traffic path. We present Linear Programming models for the problem in different cases and investigate their polyhedral structure. All along this book, we address both theoretical and algorithmic aspects of the different cases we study, and develop efficient and exact algorithms to solve this network design problem. This book should be useful to practioners in telecommunications and network engineering, and to researchers and students who are interested in studying network design problems.
3G NETWORK INITIAL PILOT COVERAGE DESIGN AND OPTIMIZATION Rapid growth of mobile Internet and other mobile services has resulted in increasing demand for higher data transmission capacity. 3G mobile communications systems is designed to meet this demand. Coverage planning is performed with ASSET3G network planning tool including a digital map with topography and population distribution information of the area. The task of planning a network can be very challenging as it involves many careful studies with a lot of considerations. This book provides A methodology of developing initial pilot coverage for a 3G network. The target for coverage planning is to find an optimal location for NodeB's (3G base stations) to build continuous coverage according to the planning requirements. In addition, various optimization techniques such as the antenna height and tilts were also studied to optimize the performance of the network parameters to achieve good coverage. After deployments the total displayed area was 57.446km2 and the total covered area was 57.428km2 with coverage percentage of 99.96%. This book is a perfect guide for students in telecommunication and network coverage planners.
Optical networks present a promising candidate for the next generation ultra-high-speed networks due to its potential ability to offer huge bandwidth at low costs. These networks should have the ability to maintain service continuity to end-users in presence of network failures. Therefore, survivability has become a critical issue for the next generation optical networks. In this book, we demonstrate the stat of the art survivability techniques used in highly-survivable optical networks with focus on restoration techniques as promising techniques in terms of capacity utilization and blocking probability. Mohamed A. Azim distinctive approach, explores a new survivability scheme employed in optical networks namely, Active Restoration (AR). The AR scheme combines the advantages of the proactive protection and reactive restoration techniques while trying to avoid their shortcomings as verified by extensive simulations and analytical models. The book presents a step-by-step guide to survivability techniques and analytical modeling that can help researchers to find relevant ideas and open research problems on network survivability as well as developing their analytical models.
Carmichael: ?construction? Engineering Networks: Techniques Planning & Management
Base station cooperation (BSC), also known as Cooperative Multi-Point (CoMP), has been identified as a key radio access technology for next-generation cellular networks. This work creates a foundational framework that extends BSC transmission to provide spatial spectrum sharing (SSS) through MIMO null beamforming while enjoying cooperative stream transmission. SSS is investigated by introducing the protected Gaussian MIMO broadcast channel (PGMBC), a GMBC with receive power constraints. Applications of the PGMBC are identified and its capacity region is derived. In addition, precoding schemes are developed to mitigate intercell interference and intersystem interference. The simulations show that through BSC, significant throughput gains over non-cooperative null-beamforming schemes can be achieved. However, to maximize the benefits of BSC in practical networks, the location and configuration of BS sites must be planned accordingly. This work introduces a fundamental framework for planning BSC networks. The impacts of BSC on coverage, capacity, complexity are investigated. In addition, a cell planning procedure for distributed, dynamic fractional BSC networks is described.
Heldman: Telecommunications ?management? Planning – Isdn Networks Products & Services
To investigate a new ant-based agent algorithm for providing survivable routing in WDM network. The major problem in survivable routing WDM network is routing wavelength and assignment (RWA) problem, It sets up light path by routing and assigning a wavelength to each connection such that no light path use the same wavelength on same link Initially, in the path, a major part of the bandwidth is allocated for primary path and this part can not be shared by other paths. Fraction of the bandwidth is allocated for backup path and this can be shared by other disjoint paths. The disjoint path can be primary or backup path. The residual bandwidth is used for future primary and backup paths computations. When the connection request arrives to the source, it looks in its pheromone and load table and send connection request (CNREQ) message to the destination along with feasibility and load values of paths. Upon receiving the CNREQ, the path that has higher feasibility value and the load value lesser than ThLOAD can be selected by the destination for further processing. Using NS-2 simualtion we show that the proposed ant based routing achives better channel utilization and throughput
High-performance transport networks are expected to support applications with various types of traffic flows (permanent, scheduled, bursty, and noisy). Since high-performance networks usually employ optical network infrastructures and since most applications require sub-wavelength bandwidth, several streams are groomed on the same wavelength. It is therefore important that such networks are designed in an optimal way in terms of cost while efficiently supporting these types of traffic. This book deals with the design and analysis of optical networks allowing for traffic engineering including grooming and rerouting functionalities. Both deterministic and random traffic scenarios are considered. Under deterministic traffic conditions, optimal as well as accurate heuristic approaches are developed for network design and operation. Under random traffic conditions, the dynamic routing and grooming problem is considered subject to the availability of free network resources. Several algorithms are developed to facilitate this provisioning problem. At last, rerouting techniques and their implementation are addressed in order to enhance network efficiency under specific traffic scenarios.
Radio Network Planning is the process of assigning frequencies, transmitter locations and parameters of a wireless communications system to provide sufficient coverage and capacity.It remains an essential process for network operators. 4G also known as "Beyond 3G"- refers to the fourth generation of wireless communications. Network operators are deploying 4G wireless networks to effectively deliver next-generation broadband services to an expanding base of consumers eager to experience media-rich applications. Still operators are quite aware of the fact that effective 4G radio planning indeed is a challenging issue. Again, from academic perspective, the detail of this radio planning process isn’t easily available for a thorough understanding. As a result, it almost has become a common view to leave this domain to industry alone. While 4G LTE promises to increase network capacity, improve QoS and significantly enhance data rates; brings new design challenges. This book aims to cover the 4G radio network planning process through LTE. A blended approach- combining background theory and practical through Dhaka city LTE radio planning using necessary simulators has been followed here.
Wide-area camera networks are becoming more and more common. They have wide-range of commercial and military applications from video surveillance to smart home and from traffic monitoring to anti-terrorism. The design of such a camera network is a challenging problem due to the complexity of the environment, self and mutual occlusion of moving objects, diverse sensor properties and a myriad of performance metrics for different applications. In this boook, we consider two such challenges: camera planning and camera fusion. Camera planning is to determine the optimal number and placement of cameras for a target cost function. Camera fusion describes the task of combining images collected by heterogenous cameras in the network to extract information pertinent to a target application. The original research presented in this book is valuable for researchers in sensor network, video surveillance, computer vision and augmented reality. The introduction and tutorial part of this book are also beneficial for general audience interested in sensor network and imaging technology.
In competitive telecom industry customer satisfaction is the single most considerable matter and that depends only on quality of service (QoS) of wireless networks. The major part of the GSM cellular mobile telecommunication system structure is radio frequency related. So that, the quality of the network is relate mostly depend on radio functions. The major expectation is the network should cover whole area as planned the network is free from interference and reliable wireless communication.RF Network planning for GSM is a systematic project covering the whole process of network building comparison to radio transmission theory, from antenna feeder index analysis to network capability forecast, and to test of network performance and system parameter for optimization purpose. In this paper firstly a clear form of GSM cellular system has discussed. After that a complete planning of RF network for GSM has discussed. After successful planning, RF survey, system designing and installation and debugging are performed. Then a BTS is connected with live wireless network to be given opportunity to customers for mobile communication.