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Mobile devices like PDAs or mobile phones have become widespread. Similarly network functionality like GSM, Bluetooth or WLAN has become a standard. Nevertheless, not many applications take mobility into account. An application and its communication component are tightly coupled and the applications assume that network behavior does not change. Here in this project we propose and implement a new component...
This paper presents a system based on electronic equipments, standard mobile phones and WLAN networks for managing evacuation routes, or for obtaining information about victims' location and status, whenever a building collapses due to a disaster like earthquakes. The system is based on the standard Blue tooth specification to guarantee their application in indoor areas. The electronic equipments,...
This paper presented a novel reconfigurable UWB chassis-antenna for future mobile terminals. Simulations show that the antenna provides a four overlapping wideband modes which enable it to cover a band from 470 MHz to 2850 MHz. The antenna is thus able to cover multiple wireless wideband standards, such as DVB-H, GSM, GPS, PCS, UMTS and WLAN bands.
The host identity protocol (HIP) has been specified by the IETF as a new solution for secure host mobility and multihoming in the Internet. HIP uses self-certifying public- private key pairs in combination with IPsec to authenticate hosts and protect user data. While there are three open-source HIP implementations, little experience is available with running HIP on lightweight hardware such as a mobile...
The fast mobile acquisition and analysis of medical data offers new ways of an effective monitoring of studies on occupational health. By using modern transmission technologies, the presented proprietary development works completely wireless and thus offers the possibility of monitoring a subject's physiological parameters and its strain sense regardless of location.
One of the multimedia services offered by the campus network of the Polytechnic University of Valencia is TV over IP. This service works well in the devices connected directly to the wired network but we have detected some problems when the receivers access to the campus network through wireless IEEE 802.11, especially when devices roam across the campus. In this paper we propose and evaluate a server-based...
In near future, various wireless access technologies will be used together to provide seamless and cost effective connectivity to mobile users. Multiple wireless access systems with overlapping coverage fields will be accessible to a mobile terminal with multiple interfaces. One problem arising from the availability of alternatives is the unnecessary occurrences of handovers (especially vertical ones)...
The proliferation of mobile broadcast networks and home multimedia networks makes relevant considering a new level of digital convergence. One aspect is the integration of mobile content access to the home network. In this framework, a mobile device serves as a gateway for real time content rebroadcast. This paper investigates the mobile rebroadcasting problem and implementation between the Mobile...
In this paper, a novel internal antenna of the planar inverted-F antenna type for mobile handsets is presented (Manteuffel et al., 2001). The proposed antenna operates at Bluetooth (2400-2483.5 MHz) bands and WLAN (2400-2483.5 MHz, 5150- 5875 MHz) bands. The bandwidth of the proposed antenna (VSWR < 2) shows 170 MHz in lower band and 1650 MHz in upper band. The proposed antenna can be applicable...
Three small multi-band planar inverted-F antennas (PIFAs) are presented. They have been developed to be used in future small multi-standard handsets. Mobile communication (GSM1800, UMTS), wireless local area network (WLAN) (IEEE 802.11b, HiperLAN2) and wireless personal area network (WPAN) (Bluetooth) standards have been envisaged. Prototypes have been designed, fabricated and tested. Good agreement...
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