The commercial proliferation of cellular voice and limited data service has created a great demand for mobile communications and computing. Current voice fax, email and paging services will give way to data transfer, video conferencing image transfer and video delivery. Achieving such an advanced level of tether less mobile multimedia service requires the development of wireless network that ca...

This paper focuses on communication in personal area networks. A personal area networks (PAN) is characterized as an informal collection, or community, of connected small, lightweight, and resource-lean devices, or gadgets. Two basic concepts are visible in the development of PANs, the distributed and the centralized concept. The paper introduces a real-time communication protocol that is suita...

the stability of a communication network composed of processing nodes and communication links is of prime importance to network designers. as the network begins losing links or nodes, eventually there is a loss in its effectiveness. thus, communication networks must be constructed to be as stable as possible, not only with respect to the initial disruption, but also with respect to the possible...

in this paper, we study wsn design, as a multi-objective optimization problem using ga technique. we study the effects of ga parameters including population size, selection and crossover method and mutation probability on the design. choosing suitable parameters is a trade-off between different network criteria and characteristics. type of deployment, effect of network size, radio communication...

Communication technology is currently seeing rapid growth, characterized by new access networks, end-devices and an ever growing user-community. However, there is a lack of integration between the di erent services: a user may have a cell-phone, a pager, a regular phone, a laptop, an e-mail account, and so on. But she has little control over managing communication services in a personalized, un...

Future Personal Communication Networks (PCN), due to the growing user demand in personal communication services in combination with the ongoing development of broadband wireless air interface access technology, are expected to offer broadband multimedia services using the ATM/B-ISDN as the backbone transport network. This paper proposes a new operational concept for such a mobile ATM network, c...

This study assesses the nature of data on personal networks derived both from personal paper phone notebooks as well as from the mobile phone electronic notebook. It is illustrated by data on author’s personal network between 1993 and 2000 and in 2002. The text emphasizes the subjective and biographical aspects of this data and suggests that studies based on mobile phone network data may contri...

In this study, we introduced a communication system where human body was used as medium through which data were transferred. Multiple biosignal sensing units were attached to a subject and wireless personal area network was formed. Data of the sensing units were shared among them. We used wideband pulse communication that was simple, low-power consuming and high data rated. Each unit functioned...

if we think of the graph as modeling a network, the vulnerability measure the resistance of the network to disruption of operation after the failure of certain stations or communication links. many graph theoretical parameters have been used to describe the vulnerability of communication networks, including connectivity, integrity, toughness, binding number and tenacity.in this paper we discuss...

Actor-network theory, which is considered as a development of socio-technical structuralism school, observes reservation and stability of networks containing personal and impersonal components such as individuals, organizations, communication software and hardware, and infrastructural standards by examination of socio-technical dimensions concurrently.The goal of this research is studying the i...