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Mobile telephony

About: Mobile telephony is a research topic. Over the lifetime, 38008 publications have been published within this topic receiving 553646 citations.


Papers
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Proceedings ArticleDOI
18 Apr 2010
TL;DR: In addition to clustering concept description, this work provides new means to analyse achievable system performance when clustering communication is integrated into a cellular network and especially into an interference limited system.
Abstract: We study how direct communication within a group of devices, cluster, can improve the performance of a conventional cellular system. The clusters are formed from devices that are close and communicating with each other, for example, sharing data. The clusters share the radio resources among other devices in the system thus creating a mixed network system comprising directly communicating devices and devices having radio links to and from the base stations. In this kind of a system the additional challenge is to decide when clusters shall use direct communication and when conventional cellular radio links to communicate with each other. Here, in addition to clustering concept description we provide new means to analyse achievable system performance when clustering communication is integrated into a cellular network and especially into an interference limited system.

115 citations

Journal ArticleDOI
TL;DR: Lower prices, improved security, improved devices and effective customer support, proved to be the critical success factors towards accelerating m-commerce consumer adoption and it was concluded that the customisation of the marketing mix to the specific characteristics of each target market is a key success factor for mobile operators in Europe.
Abstract: The changing role of mobile communications is reflected in the increasing use of mobile devices for e-commerce purposes. Supported by the penetration of mobile devices and the evolution of mobile technologies, mobile commerce promises to change the way certain business-to-consumer (B2C) activities are conducted. Focusing on B2C markets, this paper underlines the critical role of consumer behaviour research in mobile commerce and investigates, through an exploratory research approach, the critical success factors towards mobile commerce diffusion. To that end, an online consumer survey ran in three European countries (Finland, Germany and Greece). The results showed that mobile commerce (m-commerce) penetration in Europe is in its infancy. In addition, significant differences regarding consumer attitudes towards mobile commerce were observed among the countries investigated. Lower prices, improved security, improved devices and effective customer support, proved to be the critical success factors towards accelerating m-commerce consumer adoption. It is concluded that the customisation of the marketing mix to the specific characteristics of each target market is a key success factor for mobile operators in Europe.

115 citations

Journal ArticleDOI
08 Jan 2000
TL;DR: An analysis of how people start a conversation in situations where they meet physically, especially looking at the influence of the situation is provided and the solution is to exchange context information before initiating the call.
Abstract: In this paper we introduce a novel approach to sharing context in order to enhance the social quality of remote mobile communication. We provide an analysis of how people start a conversation in situations where they meet physically, especially looking at the influence of the situation. This is then compared to the way remote communication is initiated using mobile phones. The lack of knowledge about the situation at the other end leads to the initiation of calls which are not appropriate to that situation. The solution we propose is to exchange context information before initiating the call. We implemented this concept using the Wireless Application Protocol (WAP). The application Context-Call offers a phone interface that provides information about the receiver when setting up a call. Based on that information, the caller can then decide to place the call, to leave a message or to cancel the call. Privacy issues that arise from this technology are discussed also.

115 citations

Journal ArticleDOI
TL;DR: This paper proposes a fully distributed computation offloading (FDCO) algorithm based on machine learning technology and theoretically analyzes the performance of the proposed FDCO algorithm in terms of the number of beneficial cloudlet computing mobile devices and the system-wide execution cost.
Abstract: In this paper, we investigate the problem of multiuser computation offloading for cloudlet-based mobile cloud computing in a multichannel wireless contention environment. The studied system is fully distributed so that each mobile device user can make the offloading decisions based only on its individual information, and without information exchange. We first formulate this multiuser computation offloading decision making problem as a noncooperative game. After analyzing the structural property of the formulated game, we show that it is an exact potential game, and has at least one pure-strategy Nash equilibrium point (NEP). To achieve the NEPs in a fully distributed environment, we propose a fully distributed computation offloading (FDCO) algorithm based on machine learning technology. We then theoretically analyze the performance of the proposed FDCO algorithm in terms of the number of beneficial cloudlet computing mobile devices and the system-wide execution cost. Finally, simulation results validate the effectiveness of our proposed algorithm compared with counterparts.

115 citations

Journal ArticleDOI
TL;DR: This work employs a semi-Markov process to model user mobility based on the geocommunity structure of the network, and develops different route algorithms to cater to the superuser that wants to either minimize total duration or maximize dissemination ratio.
Abstract: In this paper, we consider the issue of data broadcasting in mobile social networks (MSNets). The objective is to broadcast data from a superuser to other users in the network. There are two main challenges under this paradigm, namely 1) how to represent and characterize user mobility in realistic MSNets; 2) given the knowledge of regular users' movements, how to design an efficient superuser route to broadcast data actively. We first explore several realistic data sets to reveal both geographic and social regularities of human mobility, and further propose the concepts of geocommunity and geocentrality into MSNet analysis. Then, we employ a semi-Markov process to model user mobility based on the geocommunity structure of the network. Correspondingly, the geocentrality indicating the “dynamic user density” of each geocommunity can be derived from the semi-Markov model. Finally, considering the geocentrality information, we provide different route algorithms to cater to the superuser that wants to either minimize total duration or maximize dissemination ratio. To the best of our knowledge, this work is the first to study data broadcasting in a realistic MSNet setting. Extensive trace-driven simulations show that our approach consistently outperforms other existing superuser route design algorithms in terms of dissemination ratio and energy efficiency.

115 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20242
202351
2022149
2021339
2020558
2019707