Common Radio Resource Management for UMTS/GSM/WLAN Systems PDF Download
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Author: Yi Zhang
Publisher:
ISBN:
Category :
Languages : en
Pages : 90
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Book Description
Das Lastausgleichsproblem bei UMTS/GSM/WLAN Systemen wurde mittels Hilfe von 6 Algorithmen untersucht. Es handelt sich hierbei um die neu entwickelten Algorithmen Minimal Load Cell Selection, Bad Random Cell Selection, Good Random Cell Selection, Factor based Cell Selection with Delay, Minimal Relative Distance Cell Selection und Minimal Absolute Distance Cell Selection. Durch dem Vergleich der Algorithmen im Bezug auf die Blockierungs-, Abbruchsrate und Zelllast, Factor based Cell Selection with Delay ist der beste Algorithmus sowohl für GSM als auch für die gemischte GSM und UMTS Systemen. Bad random Cell Selection ist der schlechteste Algorithmus für beide Systemen.
Author: Yi Zhang
Publisher:
ISBN:
Category :
Languages : en
Pages : 90
Get Book Here
Book Description
Das Lastausgleichsproblem bei UMTS/GSM/WLAN Systemen wurde mittels Hilfe von 6 Algorithmen untersucht. Es handelt sich hierbei um die neu entwickelten Algorithmen Minimal Load Cell Selection, Bad Random Cell Selection, Good Random Cell Selection, Factor based Cell Selection with Delay, Minimal Relative Distance Cell Selection und Minimal Absolute Distance Cell Selection. Durch dem Vergleich der Algorithmen im Bezug auf die Blockierungs-, Abbruchsrate und Zelllast, Factor based Cell Selection with Delay ist der beste Algorithmus sowohl für GSM als auch für die gemischte GSM und UMTS Systemen. Bad random Cell Selection ist der schlechteste Algorithmus für beide Systemen.
Author: Sofoklis A. Kyriazakos
Publisher: Artech House Publishers
ISBN: 9781580536325
Category : Technology & Engineering
Languages : en
Pages : 242
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Book Description
Despite frustrating customers and loss of revenue for telecommunications providers, cellular network congestion has remained a problem for which few solutions have been found. Covering GSM, GPRS, UMTS and beyond 3G systems, this practical book breaks new ground by providing you with proven techniques for decreasing blocking and dropped call rate due to network congestion. Using real measurements, this book clearly shows you that the maximum traffic that can be accommodated in a wireless network is not a constant value and varies significantly.
Author: Jordi Perez Romero
Publisher: John Wiley & Sons
ISBN: 0470022787
Category : Technology & Engineering
Languages : en
Pages : 364
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Book Description
The key feature of future mobile communication systems is the ability to deliver wideband and high bit-rate multimedia services alongside the traditional radio services such as voice, messaging and slow rate data. The broad range of services expected to be supported can be divided into different Quality of Service (QoS) classes. However, the provision of such mobile multimedia services under QoS guarantees will not be possible without a utilization of the air interface resources by means of Radio Resource Management (RRM) strategies that ensure the target QoS, the planned coverage area and that offer a high system capacity. Under this framework, the book focuses on the RRM concepts, including the theoretical background that serves as a basis for the description of specific RRM algorithms. The RRM problem for UMTS is presented, and more specifically, for the FDD mode, which is based on a WCDMA scheme. More specifically, the different aspects that are covered include: Introduces the mobile communications sector and UMTS, including the evolution towards 4G systems, with an overview of the QoS concept which is key for the definition of RRM strategies Offers a detailed description of the radio interface in UMTS, as the basis for the implementation of RRM strategies Provides the fundamental concepts related with the development of RRM strategies in WCDMA networks Analyses particular RRM algorithms in a variety of scenarios, trying to identify the key parameters and factors that influence their performance Explores the evolution of UMTS towards Beyond 3G systems and the concept of Common RRM in heterogeneous networks with the aid of some algorithm examples This comprehensive title is essential reading for engineers and managers in radio engineering departments of UMTS network operators and UMTS equipment manufacturers. It will also prove insightful to researchers in the field of 3G and Beyond 3G systems and academics in any of these areas.
Author: Jaana Laiho
Publisher: John Wiley & Sons
ISBN: 0470024828
Category : Technology & Engineering
Languages : en
Pages : 513
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Book Description
Radio Network Planning and Optimisation for UMTS comprehensively explains how to dimension, plan and optimise UMTS (Universal Mobile Telecommunications System) networks. It introduces the properties of the spread spectrum system and provides a general overview of the physical layer of UTRA FDD. The radio network planning process for WCDMA is clearly presented and detailed information on how to dimension, plan and rollout a 3G network, both theoretically and practically is provided. This valuable text examines current and future radio network management issues and their impact on network performance as well as the relevant capacity and coverage enhancement methods. * Includes automation examples of radio resource management * Focuses on UTRA FDD and introduces UTRA TDD, GPRS and EDGE and examines their interaction and synergy * Provides an excellent source of information for those considering future cellular networks where Quality of Service (QoS) is of paramount importance * Analyses the radio network planning challenges and opportunities for both greenfield and existing operators * Includes an accompanying CD-ROM featuring a static radio network simulator implemented in MATLAB(r) Authoritative and instructive, this text will have instant appeal to wireless operators and network and terminal manufacturers. It will also be essential reading for university students, frequency regulation bodies and everyone interested in radio network planning and optimisation, especially RF network systems engineering professionals.
Author: Nishith D. Tripathi
Publisher: Springer Science & Business Media
ISBN: 0306473186
Category : Technology & Engineering
Languages : en
Pages : 244
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Book Description
Radio Resource Management in Cellular Systems is the first book to address the critical issue of radio resource management in emerging (i.e., third generation and beyond) wireless systems. This book presents novel approaches for the design of high performance handoff algorithms that exploit attractive features of several existing algorithms, provide adaptation to dynamic cellular environment, and allow systematic tradeoffs among different system characteristics. Efficient handoff algorithms cost-effectively enhance the capacity and quality of service (QoS) of cellular systems. A comprehensive foundation of handoff and related issues of cellular communications is given. Tutorial-type material on the general features of 3G and 3.5G wireless systems (including CDMA2000, UMTS, and 1xEV-DO) is provided. Key elements for the development of simulators to study handoff and overall RF performance of the integrated voice and data cellular systems (including those based on CDMA) are also described. Finally, the powerful design tools of neural networks and fuzzy logic are applied to wireless communications, so that the generic algorithm approaches proposed in the book can be applied to many other design and development areas. The simulation models described in the book represent a single source that provides information for the performance evaluation of systems from handoff and resource management perspectives. Radio Resource Management in Cellular Systems will prove a valuable resource for system designers and practicing engineers working on design and development of third generation (and beyond) wireless systems. It may also be used as a text for advanced-level courses in wireless communications and neural networks.
Author: Sofoklis A. Kyriazakos
Publisher: Artech House
ISBN: 9781580536332
Category : Technology & Engineering
Languages : en
Pages : 262
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Book Description
Despite frustrating customers and loss of revenue for telecommunications providers, cellular network congestion has remained a problem for which few solutions have been found. Covering GSM, GPRS, UMTS and beyond 3G systems, this practical book breaks new ground by providing you with proven techniques for decreasing blocking and dropped call rate due to network congestion. Using real measurements, this book clearly shows you that the maximum traffic that can be accommodated in a wireless network is not a constant value and varies significantly.
Author: Guihua Piao
Publisher: kassel university press GmbH
ISBN: 3899582691
Category :
Languages : en
Pages : 141
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Book Description
Author: Jukka Lempiäinen
Publisher: Springer Science & Business Media
ISBN: 0306473194
Category : Technology & Engineering
Languages : en
Pages : 287
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Book Description
This broadly applicable book introduces radio system planning, emphasizing theoretical and practical details for the planning of GSM, GPRS and UMTS mobile networks. It explains the key planning parameters for these systems and describes the common tasks in radio system planning.
Author: Morten Tolstrup
Publisher: John Wiley & Sons
ISBN: 0470061480
Category : Technology & Engineering
Languages : en
Pages : 345
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Book Description
Mobile wireless applications are a good way to increase productivity, improve customer service and streamline business processes. 3G mobile applications, however, bring a unique challenge: ensuring adequate in-building coverage. Indoor Radio Planning provides an overview of mobile networks systems and coverage solutions for cellular networks in buildings. The background of GSM, UMTS and HSPA cellular systems technology are presented and form the backdrop of the main discussion as to why indoor coverage is needed and how it is best implemented. Basic passive distributed antenna systems (DAS) through to advanced fiber optic systems are discussed in detail, giving the reader a good understanding of all the available solutions. In addition, there is a section covering multi-operator systems, as this is becoming a more and more utilized approach. Other sections cover aspects such as how to upgrade passive DAS from 2G to 3G, noise analysis, link budgets, traffic calculations and software tools that can be used to provide help with creating in-building designs. These topics are examined at length from the basic considerations to advanced indoor radio planning. One of the first texts dedicated solely to indoor radio planning, it will be of essential reading to engineering and planning personnel working for mobile operators, with the book being written with radio planners in mind throughout. Indoor Radio Planning will also be of interest to companies who service and manufacture equipment for operators such as suppliers of indoor coverage systems and vendors of base stations for mobile coverage. A unique, single-source reference for both the theoretical and practical knowledge behind indoor radio planning Written by a leading practitioner in the field with more than 15 years of experience Based on real life examples and implemented systems and results Analyzes co-existence of mobile services and inter modulation analysis Outlines the key parameters and metrics for designing DAS for GSM, DCS, UMTS and HSPA
Author: Ekram Hossain
Publisher: John Wiley & Sons
ISBN: 1118749774
Category : Technology & Engineering
Languages : en
Pages : 346
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Book Description
Providing an extensive overview of the radio resource management problem in femtocell networks, this invaluable book considers both code division multiple access femtocells and orthogonal frequency-division multiple access femtocells. In addition to incorporating current research on this topic, the book also covers technical challenges in femtocell deployment, provides readers with a variety of approaches to resource allocation and a comparison of their effectiveness, explains how to model various networks using Stochastic geometry and shot noise theory, and much more.
