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Proposal and Evaluation Or Radio Resource Management Strategies in Order to Guarantte Quality of Service in WCDMA Cellular Systems

2007
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Release : 2007
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Book Synopsis Proposal and Evaluation Or Radio Resource Management Strategies in Order to Guarantte Quality of Service in WCDMA Cellular Systems by : Juan Sánchez González

Download or read book Proposal and Evaluation Or Radio Resource Management Strategies in Order to Guarantte Quality of Service in WCDMA Cellular Systems written by Juan Sánchez González. This book was released on 2007. Available in PDF, EPUB and Kindle. Book excerpt:

Radio Resource Management Strategies in UMTS

2005-10-31 Technology & Engineering
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Release : 2005-10-31
Genre : Technology & Engineering
Kind : eBook
Book Rating : 787/5 ( reviews)

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Book Synopsis Radio Resource Management Strategies in UMTS by : Jordi Perez Romero

Download or read book Radio Resource Management Strategies in UMTS written by Jordi Perez Romero. This book was released on 2005-10-31. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Radio Resource Management in Cellular Systems

2006-04-18 Technology & Engineering
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Release : 2006-04-18
Genre : Technology & Engineering
Kind : eBook
Book Rating : 186/5 ( reviews)

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Book Synopsis Radio Resource Management in Cellular Systems by : Nishith D. Tripathi

Download or read book Radio Resource Management in Cellular Systems written by Nishith D. Tripathi. This book was released on 2006-04-18. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Practical Radio Resource Management in Wireless Systems

2004 Technology & Engineering
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Release : 2004
Genre : Technology & Engineering
Kind : eBook
Book Rating : 332/5 ( reviews)

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Book Synopsis Practical Radio Resource Management in Wireless Systems by : Sofoklis A. Kyriazakos

Download or read book Practical Radio Resource Management in Wireless Systems written by Sofoklis A. Kyriazakos. This book was released on 2004. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Radio Resource Management in UMTS-WCDMA Systems

2004
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Release : 2004
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Book Synopsis Radio Resource Management in UMTS-WCDMA Systems by :

Download or read book Radio Resource Management in UMTS-WCDMA Systems written by . This book was released on 2004. Available in PDF, EPUB and Kindle. Book excerpt: Universal Mobile Telecommunications System (UMTS) is a Third Generation (3G) cellular technology representing an evolution of a heterogenous mix of services and increased data speeds from today's second generation mobile networks. UMTS uses Wideband Code Division Multiple Access (WCDMA) as its radio air interface. The main advantage of this is its flexibility in resource management. The implementation of WCDMA is a technical challenge because of its complexity and versatility. Billions of dollars have been spent procuring these air interfaces. To exploit the flexibility of the air interface, development of 'Radio Resource Management (RRM)' schemes are imperative. RRM is comprised of power control, handover control, load control and resource allocation algorithms. These ensure optimum network coverage, maximize the system throughput and, guarantee Quality of Service (QoS) requirements to users having different requirements. This research investigates mainly the resource allocation and power control algorithms with which the load control and handover control are intertwined. The state of the art is studied and their pros and cons are discussed, which lays the foundation for the need for more efficient RRM schemes that are eventually presented in this research. The two main schemes considered here are:1)Adaptive Call Admission Control (ACAC) scheme for resource allocation where the system is mathematically modeled as a multi-rate system with priority. Further, a tier based analytical model pertaining to the hierarchical hexagonal cell structure is analyzed and mobility is given importance. 2) Adaptive Uplink Power Control (AUPC) scheme for power control is analyzed where Monte Carlo simulations are used to fine-tune WCDMA link budget parameters. Finally, Location Update (LU) procedures in cellular networks using Bloom Filters is studied where bandwidth gain is given importance. Various performance metrics are observed and two key metrics are given the most importance.

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