Tcp Performance Over Umts Hsdpa Systems
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| Author | : Mohamad Assaad |
| Publisher | : Auerbach Publications |
| Total Pages | : 211 |
| Release | : 2006-07-20 |
| Genre | : Technology & Engineering |
| ISBN | : 9780849368387 |
The evolution of the mobile communication market is causing a major increase in data traffic demands. This could lead to disrupted mobility and intermittent degraded channel conditions that contribute to poor transmission control protocol (TCP) performance. TCP Performance over UMTS-HSDPA Systems presents a comprehensive study of the effect of TCP on achieved application bit rate performance and system capacity, and shows how to reduce the interaction of wireless networks on TCP with minimal cost. With self-contained chapters, the book consists of two main sections. The first several chapters provide background and describe the state of the art for wireless networks, emphasizing one of the third-generation (3G) wireless technologies: the universal mobile telecommunications system (UMTS). These chapters also include an analysis of the overall cell capacity for UMTS Release 99 and high-speed downlink packet access (HSDPA) systems. The second section focuses on the interaction of TCP with wireless systems, presenting an exhaustive list of TCP versions and link layer solutions that adapt TCP (often modifying the original TCP) to a wireless network. This section also displays mathematical modeling of the interaction of hybrid automatic repeat request (HARQ) and TCP in UMTS networks. While offering information for advanced undergraduate students who are unfamiliar with code division multiple access (CDMA) wireless systems as well as UMTS and HSDPA cellular systems, the book also provides extensive coverage of "TCP over wireless systems" problems and solutions for researchers, developers, and graduate students.
| Author | : Mohamad Assaad |
| Publisher | : CRC Press |
| Total Pages | : 232 |
| Release | : 2006-07-20 |
| Genre | : Computers |
| ISBN | : 1420013327 |
The evolution of the mobile communication market is causing a major increase in data traffic demands. This could lead to disrupted mobility and intermittent degraded channel conditions that contribute to poor transmission control protocol (TCP) performance. TCP Performance over UMTS-HSDPA Systems presents a comprehensive study of the effect of TCP
| Author | : Francisco Rodrigo Porto Cavalcanti |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 542 |
| Release | : 2009-07-31 |
| Genre | : Technology & Engineering |
| ISBN | : 1441901558 |
In June 2000, GTEL (Wireless Telecommunications Research Group) at the F- eral University of Ceara ́ was founded by Professor Rodrigo Cavalcanti and his c- leagues with the mission of developing wireless communications technology and impact the development of the Brazilian telecommunications sector. From the start, this research effort has been supported by Ericsson Research providing a dynamic environment where academia and industry together can address timely and relevant research challenges. This book summarized much of the research output that has resulted from GTEL’s efforts. It provides a comprehensive treatment of the physical and multiple access layers in mobile communication systems describing different generations of systems but with a focus on 3G systems. The team of Professor C- alcanti has contributed scienti cally to the development of this eld and built up an impressive expertise. In the chapters that follow, they share their views and kno- edge on the underlying principles and technical trade-offs when designing the air interface of 3G systems. The complexity of 3G systems and the interaction between the physical and m- tiple access layers present a tremendous challenge when modeling, designing, and analyzing the mobile communication system. Herein, the authors tackle this pr- lem in an impressive manner. Their work is very much in line with the developments in 3GPP providing a deeper understanding of the evolution of 3G and also future enhancements.
| Author | : Zoubir Mammeri |
| Publisher | : Springer |
| Total Pages | : 490 |
| Release | : 2010-08-24 |
| Genre | : Computers |
| ISBN | : 0387848398 |
Research and development in wireless and mobile networks and services areas have been going on for some time, reaching the stage of products. Graceful evo- tion of networks, new access schemes, flexible protocols, increased variety of services and applications, networks reliability and availability, security, are some of the present and future challenges that have to be met. MWCN (Mobile and Wireless Communications Networks) and PWC (Personal Wireless Communications) are two conferences sponsored by IFIP WG 6.8 that provide forum for discussion between researchers, practitioners and students interested in new developments in mobile and wireless networks, services, applications and computing. In 2008, MWCN and PWC were held in Toulouse, France, from September 30 to October 2, 2008. MWNC’2008 and PWC’2008 were coupled to form the first edition of IFIP Wireless and Mobile Networking Conference (WMNC’2008). MWCN and PWC topics were revisited in order to make them complementary and covering together the main hot issues in wireless and mobile networks, services, applications, computing, and technologies.
| Author | : Seng Loke |
| Publisher | : CRC Press |
| Total Pages | : 248 |
| Release | : 2006-12-07 |
| Genre | : Technology & Engineering |
| ISBN | : 9781420013498 |
The concept of aware systems is among the most exciting trends in computing today, fueled by recent developments in pervasive computing, including new computers worn by users, embedded devices, smart appliances, sensors, and varieties of wireless networking technology. Context-Aware Pervasive Systems: The Architecture of a New Breed of Applications introduces a diverse set of application areas and provides blueprints for building context-aware behavior into applications. Reviewing the anatomy of context-aware pervasive applications, this resource covers abstract architecture. It examines mobile services, appliances, smart devices, software agents, electronic communication, sensor networks, security frameworks, and intelligent software agents. The book also discusses the use of context awareness for communication among people, devices, and software agents and how sensors can be aware of their own situations. Exploring the use of physical context for controlling and enhancing security in pervasive computing environments, this guide addresses mirror worlds and elucidates design perspectives based on a declarative programming language paradigm. This carefully paced volume presents a timely and relevant introduction to the emergence of context-aware systems and brings together architectures and principles of context-aware computing in one source.
| Author | : Nikolai Moldovyan |
| Publisher | : CRC Press |
| Total Pages | : 210 |
| Release | : 2007-12-14 |
| Genre | : Computers |
| ISBN | : 1420054120 |
The Most Progressive and Complete Guide to DDO-Based Ciphers Developers have long recognized that ciphers based on Permutation Networks (PNs) and Controlled Substitution-Permutation Networks (CSPNs) allow for the implementation of a variety of Data Driven Operations (DDOs). These DDOs can provide fast encryption without incurring excessive
| Author | : Evgeny Osipov |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 413 |
| Release | : 2010-05-21 |
| Genre | : Computers |
| ISBN | : 3642133142 |
This book constitutes the refereed proceedings of the 8th International Conference on Wired/Wireless Internet Communications, WWIC 2010, held in Luleå, Sweden, in June 2010. The 17 revised full papers were carefully reviewed and selected from 45 submissions. The papers are thematically grouped into 5 technical sessions such as cooperation and multimedia traffic management in WN, advances to IEEE 802.11, routing and performance optimization, security, control and signalling, as well as wireless sensor networks.
| Author | : Yang Xiao |
| Publisher | : CRC Press |
| Total Pages | : 360 |
| Release | : 2016-04-19 |
| Genre | : Computers |
| ISBN | : 1420013394 |
Sensor networks differ from traditional networks in many aspects including their limited energy, memory space, and computational capability. These differentiators create unique security vulnerabilities. Security in Sensor Networks covers all aspects of the subject, serving as an invaluable reference for researchers, educators, and practition
| Author | : Aquino-Santos, Raul |
| Publisher | : IGI Global |
| Total Pages | : 419 |
| Release | : 2010-11-30 |
| Genre | : Computers |
| ISBN | : 1609600290 |
Mobile ad-hoc networks have attracted considerable attention and interest from the commercial sector as well as the standards community. Many new ad-hoc networking applications have been conceived to help enable new commercial and personal communication beyond the domain of tactical networks, including personal area networking, home networking, law enforcement operations, search and rescue operations, commercial and educational applications, and sensor networks. Emerging Technologies in Wireless Ad-hoc Networks: Applications and Future Development provides the rationale, state-of-the-art studies and practical applications, proof-of-concepts, experimental studies, and future development on the use of emerging technologies in wireless ad-hoc networks. In addition, this work explores emerging wireless ad hoc technologies based on communication coverage areas: body sensor networks, personal area networks, local area networks, and metropolitan area networks and their applications in critical sectors, for example, agriculture, environment, public health and public transportation.
| Author | : Syed Asad Hussain |
| Publisher | : CRC Press |
| Total Pages | : 350 |
| Release | : 2006-12-15 |
| Genre | : Computers |
| ISBN | : 1420013653 |
Most conventional networks are passive, with only basic traffic monitoring, management, routing, and congestion control. At best, they can be called reactive. Deploying new functions and integrating new standards into these architectures is difficult due to the rigid embedding of software and hardware into the network components. Active and Program
