An Agent-Based Collaborative Framework for Mobile P2P Applications

The telecommunication industry has recently seen two areas with very high growth rates: cellular networks, for example, GSM (Global System for Mobile Communications) or UMTS (Universal Mobile Telecommunications System), and P2P (Peer-to-Peer) file-sharing applications. A combination of both might be highly attractive: a) for attracting new users; and b) for exploiting the potential of cellular broadband technologies. From a system’s perspective, architectures and performance figures of cellular mobile network applications and services that have edge-based intelligence (e.g,. P2P applications) are, to the best of the authors’ knowledge, less researched and many questions remain open. This chapter presents the design of MP2P (Mobile P2P) applications for cellular mobile networks by using the example of a MP2P content-distribution application. First, the incompatibilities between the P2P paradigm and properties of cellular mobile networks are identified. Then, a design methodology for MP2P applications for cellular mobile networks is proposed. The proposed method is based on a functional analysis of the two basic P2P functions, resource mediation and resource access control. The result is a hybrid P2P content-distribution architecture, which is enhanced by different operator-controlled infrastructure elements. The suggested architecture does not only overcome incompatibilities between P2P and cellular mobile communication systems, it also meets the functional needs and performance requirements of future P2P applications in cellular environments, while still largely preserves the user characteristics and efficiency of P2P systems. Finally, the performance enhancements by the architecture for the two basic P2P functions are investigated by comprehensive simulative and analytical performance evaluations.

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Integration and Interworking of Fixed and Mobile P2P Systems

Mobile Peer-to-Peer Computing for Next Generation Distributed Environments ◽

10.4018/978-1-60566-715-7.ch014 ◽

2011 ◽

pp. 302-325

Author(s):

Spyridon L. Tompros

Keyword(s):

High Speed ◽

Internet Access ◽

Next Generation Networks ◽

Communications Networks ◽

Significant Growth ◽

P2p Systems ◽

Mobile P2p ◽

Last Mile ◽

Underlying Network ◽

P2p Applications

Enabled by the emergence of high-speed Internet access in last mile communications, P2P systems have witnessed significant growth in the recent years, mainly due to their intrinsic characteristic of being independent of the underlying network and the different services that operators offer in various subscription models. The advent of the Next Generation Networks (NGN) technology is expected to further strengthen the growth of P2P services as it will allow their deployment in any network and with any terminal type. In this chapter, the author first gives an overview of the NGN technology, and then presents its first real implementation called the IP Multimedia Sub-system (IMS), with a discussion of the issues on integrating and interworking P2P applications in converged communications networks.

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Trustworthy Agent-Based Recommender System in a Mobile P2P Environment

Lecture Notes in Computer Science - Agents and Peer-to-Peer Computing ◽

10.1007/978-3-642-31809-2_6 ◽

2012 ◽

pp. 59-70

Author(s):

Nabil Sahli ◽

Gabriele Lenzini ◽

Henk Eertink

Keyword(s):

Recommender System ◽

Agent Based ◽

Mobile P2p

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Challenges in the Development of Mobile P2P Applications and Services

Research and Development on Information and Communication Technology ◽

10.32913/mic-ict-research.v3.n6.279 ◽

2009 ◽

Author(s):

Nguyen Chan Hung ◽

Tobias Hoßfeld ◽

Giang Ngo Hoang ◽

Vu Thanh Vinh ◽

Nguyen Manh Thang

Keyword(s):

Wireless Communication ◽

Mobile Applications ◽

Peer To Peer ◽

Fast Growth ◽

Mobile P2p ◽

Enterprise Applications ◽

Recent Trends ◽

New Challenges ◽

P2p Applications ◽

Technological Integration

The recent trends of decentralizing enterprise applications toward the new peer-to-peer (P2P) architecture and the fast growth of wireless communication lead to a new tendency of combining these technologies to inherit their great advantages of mobility, reliability, flexibility and scalability. However, this technological integration raises a large number of new challenges and issues to be addressed. This paper focuses on the challenges of the development of enterprise mobile applications and services based on P2P architecture. Using selected results from related projects, we present and analyze these important issues and also propose an exemplary solution to address some of these issues.

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Total etch dentin bonding systems: scanning electron microscopy of the resin-dentin hybrid layer

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100130092 ◽

1992 ◽

Vol 50 (2) ◽

pp. 1092-1093

Author(s):

Jorge Perdigao

Keyword(s):

Composite Resin ◽

Mechanical Interlocking ◽

Hybrid Layer ◽

Agent Based ◽

Dentin Bonding ◽

Acid Agent ◽

Bond Strengths ◽

Main Component ◽

Bonding Systems ◽

New Generation

In 1955, Buonocore introduced the etching of enamel with phosphoric acid. Bonding to enamel was created by mechanical interlocking of resin tags with enamel prisms. Enamel is an inert tissue whose main component is hydroxyapatite (98% by weight). Conversely, dentin is a wet living tissue crossed by tubules containing cellular extensions of the dental pulp. Dentin consists of 18% of organic material, primarily collagen. Several generations of dentin bonding systems (DBS) have been studied in the last 20 years. The dentin bond strengths associated with these DBS have been constantly lower than the enamel bond strengths. Recently, a new generation of DBS has been described. They are applied in three steps: an acid agent on enamel and dentin (total etch technique), two mixed primers and a bonding agent based on a methacrylate resin. They are supposed to bond composite resin to wet dentin through dentin organic component, forming a peculiar blended structure that is part tooth and part resin: the hybrid layer.

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