Издательство InTech, 2011. - 284 p.Recent Developments in Mobile Communications - A Multidisciplinary Approach aims to serve as a multidisciplinary reference for the mobile telecommunications industry. The intention of this book is to offer both comprehensive and up-to-date surveys of recent developments and the state-of-the-art of various economical and technical aspects of mobile telecommunications markets. The book will be useful for scholars, policy makers, engineers and managers within the industry.
The chapters of this book seek to reflect the principal topics in the field that have either received intensive research attention or are in need of an integrative survey. They can be read independently, though many offer a complementary view. Although there is no clear relationship between all the chapters, it seems convenient to structure the material into economic-oriented and technical-oriented.
The economic-oriented part begins with the chapter by Karamti and Kammoun, who study the effect of privatization, competition and regulation on the performance of mobile service providers. Their main findings suggest that competition is associated with increased penetration and lower prices. Privatization in itself may have little effect - it needs to be combined, for instance, with an independent regulator, to have the desired effects.
Castaldi, Addeo, Massaro and Mazzoni (Chapter 2) analyse the impact of servitization on mobile phone demand using a multidimensional segmentation framework (LAM model). Their results show that the LAM model could be fruitfully applied to market segmentation.
In Chapter 3, Zeiss, Davies and Pospischil offer an overview of Wholesale Applications Community (WAC) and compare it to existing mobile app eco-systems and technologies. They investigate the details of WAC with respect to its API definition, runtime implementation, technologies used and SDK-based development. Martín López, Monforte Nicolás and Merino Moreno (Chapter 4) describe the current state of the telecommunications market and its shortages in terms of the generation of a future-proof business model that can give both market and financial sense to the new investments planned for the creation of the Next-Generation Networks (NGN) that will lead to 4G and beyond.
In Chapter 5, Elaluf-Calderwood, Eaton, Herzhoff, and Sorensen present a framework for analysing value networks. They provide a complementary analysis of mobile platforms as convergent systems: the composition of the ecosystem, its interactions and the relationships and conflicts that are generated by those interactions. This chapter presents a potential framework for the analysis of the composition of both ecosystems and value networks using tussles and control points.
In Chapter 6, Vilares and Coelho develop an integrated methodology for estimating the return on quality investments applied to the mobile telecommunications industry. The goal of this work is to propose a methodology that will enable the identification of profitable quality investments. This includes identifying the profitability of different levels of investments and prioritizing alternative investments, taking into account their return or profitability.
Maícas and Sesé, in Chapter 7, provide an overview of the current state of the networks effects literature, highlighting their role in the mobile communications industry in order to gain a better understanding of one of the key forces that underlie the development of these markets. They review the relevant works in the field of network effects and network markets, offer empirical support for the conceptual arguments and identify how network effects operate in mobile communications.
The technical-oriented part of the book begins with Chapter 8, where Professor Secmen describes crucial antenna parameters for mobile communication systems, offering types and examples of multiband antennas used in mobile communication. He also investigates wideband antennas for mobile communication applications.
In Chapter 9, Aquino-Santos, Guerrero-Ibáñez and Edwards-Block analyse two emerging wireless technologies that can be employed in RVC communication, IEEE 802.1p and IEEE 802.16-2004, in an urban scenario. The work compares simulations of these two prominent technologies for roadside communication. Main findings show that IEEE 802.16-2004 technology outperforms IEEE 802.11p technology in terms of throughput, packet loss and end-to-end delay.
Minhas, Mahmood and Malik (Chapter 10) discuss the role of ad hoc networks in mobile telecommunications. Present trends in mobility are presented with respect to technological, application and social aspects, which inherently influence telecommunication network design, and future trends in technology and its usage are addressed.
Gotsis and Sahalos, in Chapter 11, introduce ’DoA-based Switching (DoAS)’ and its incorporation into a 3G mobile communications framework, e.g. the Universal Mobile Telecommunications System (UMTS). They evaluate and compare DoAS to ’Typical Switching (TS)’, which refers to the typical operation of a switched-beam system (SBS), which is determined by the highest uplink Signal to Interference Noise Ratio (SINR) or by the highest mean received power.
Chapter 12 introduces a discussion by Lo and Guan whose objective is to leverage and combine the benefits of Coordinated MultiPoint transmission and reception (CoMP) and relaying in order to improve the performance of cell-edge users, which is severely degraded by inter-cell interference. The authors suggest that the joint relaying and CoMP technique can yield performance gains beyond what can be achieved by using either of the techniques alone.
In Chapter 13, Tostes, Duarte-Figueiredo and Zárate highlight that Call Admission Control (CAC) is one of the most important systems for a cellular network. The authors describe conventional and unconventional CACs. The chapter presents both types and concludes that it is not possible to say which is the best: it depends on the user and operator demands.
He, Du and Hu (Chapter 14) propose water quality monitoring as an essential tool and foundation in water resource management and water pollution supervision and control by government administrations. The chapter focuses on water quality sensors based on ion-specific electrodes, water quality dynamic monitoring systems based on web-server-embedded technology and their application to rivers and freshwater detection, aquaculture production and hydroponic plant production.Economic Oriented.
Privatization, Reforms and Firm’s Performance in Mobile Telecommunication Industry.
A Consumer Perspective on Mobile Market Evolution.
The Role of WAC in the Mobile Apps Ecosystem.
Finding Services and Business Models for the Next-Generation Networks.
Mobile Platforms as Convergent Systems – Analysing Control Points and Tussles with Emergent Socio-Technical Discourses.
Measuring the Return of Quality Investments on Mobile Telecommunications Network.
Network Effects in the Mobile Communications Industry: An Overview.
Technical Oriented.
Multiband and Wideband Antennas for Mobile Communication Systems.
Comparative Analysis of IEEE 802.11p and IEEE 802.16-2004 Technologies in a Vehicular Scenario.
The Role of Ad Hoc Networks in Mobile Telecommunication.
Beamforming in 3G and 4G Mobile Communications: The Switched-Beam Approach.
Joint Cooperative Shared Relaying and Multipoint Coordination for Network MIMO in 3GPP LTE-Advanced Multihop Cellular Networks.
Conventional and Unconventional Cellular Admission Control Mechanisms.
Water Quality Dynamic Monitoring Technology and Application Based on Ion Selective Electrodes.
