Mobile computing paradigm has emerged due to advances in wireless or cellular networking technology. This rapidly expanding technology poses many challenging research problems in the area of mobile database systems. The mobile users can access information independent of their physical location through wireless connections. However, accessing and manipulating information without restricting user...

The mobile computing paradigm has emerged due to advances in wireless or cellular networking technology. This rapidly expanding technology poses many challenging research problems in the area of mobile database systems. Mobile users can access information independent of their physical location through wireless connections. However, accessing and manipulating information without restricting user...

Future generations of cellular communications requires higher data rates and a more reliable transmission link with the growth of multimedia services, while keeping satisfactory quality of service, . MIMO antenna systems have been considered as an efficient approach to address these demands by offering significant multiplexing and diversity gains over single antenna systems without increasing b...

Cellular networks are facing severe traffic overloads due to the proliferation of smart handheld devices and traffic hungry applications. This paper tries to offload the cellular network traffic through Opportunistic Communications and Social Participation formed by the short-range communication technologies in the smart phones (e.g., Wi-Fi, Bluetooth). We design an Enhanced Greedy algorithm fo...

Recently, smartphones are widely used due to the popularity of Internet, and they are equipped with both Wi-Fi and cellular radio interfaces generally. In smartphone, although Wi-Fi interface is generally used for supporting higher rate data session of the smartphone itself, it can be also used to support connectivity to other nearby wireless devices with Wi-Fi interface only, such as laptop. T...

In this paper we describe a model for the performance analysis of mobile packet data services sharing a common GSM/GPRS (Global System for Mobile communications/General Packet Radio Service) cellular infrastructure with mobile telephony services. The performance model is developed using the DSPN (Deterministic and Stochastic Petri Net) paradigm. With limited computational cost, the DSPN solutio...

Mobile users are envisioned to exploit direct communication opportunities between their portable devices, in order to enrich the set of services they can access through cellular or wifi networks. Sharing contents of common interest or providing access to resources or services between peers can enhance a mobile node’s capabilities, offload the cellular network, and disseminate information to nod...

Grid computing is a term referring to the combination of computer resources from multiple administrative domains to reach a common computational platform. Mobile Computing is a Generic word that introduces using of movable, handheld devices with wireless communication, for processing data. Mobile Computing focused on providing access to data, information, services and communications anywhere an...

Grid computing is a term referring to the combination of computer resources from multiple administrative domains to reach a common computational platform. Mobile Computing is a Generic word that introduces using of movable, handheld devices with wireless communication, for processing data. Mobile Computing focused on providing access to data, information, services and communications anywhere an...