conclusions this study provides initial data on the prevalence and distribution of the flaa, cadf, ciab, cdtb, cgtb, docc and wlan genes in c. jejuni. background campylobacter jejuni (c. jejuni) is a major cause of human diarrheal disease. objectives this study was conducted to determine the prevalence of different pathogenic genes in isolates recovered from human stool samples in rosario, arge...

Precision time protocol (PTP), a state-of-the-art clock synchronization primarily designed for wired networks, has recently gained attention in the wireless community, due to increased use of IEEE 802.11 local area networks (WLAN) real-time distributed systems. However, all existing WLAN-based PTP designs either incorporate software timestamping (TS) delivering poor accuracy, or hardware (HW) T...

Next Generation Networks (NGNs) are primarily propelled by huge potential market for systems of communication and services to suit individuals, which yield ubiquitous and tether-less access to users. Providing seamless handover and ubiquitous services in NGN presents many new research challenges. Priority based call management scheme is necessary to provide low call dropping probability for hig...

Much of interest has been involved in integrating UMTS and WLAN networks in order to take full advantage of the two. In such an integrated network, UMTS subscribers can access to UMTS services through 3G or WLAN access networks. This is highly desirable because network operators will use WLAN hotspots to increase network coverage, while offering subscribers with high-speed connections to 3G net...

The integration of wireless local area networks (WLANs) and the high speed wide area network (WAN) using ‘always on’ broadband access that could provide an efficient and cost effective inter-WLAN mobility management requires the current WLAN internetworking protocol enhanced. The Inter Access Point Protocol (IAPP) defines methods for access point coordination over a distribution system to suppo...

Current trends show that UMTS network and WLAN will co-exist and work together to support more users with higher data rate services over a wider area. However, this integration invokes many challenges such as mobility management and handoff decision making. Vertical handoff is switching process between heterogeneous wireless networks in a 3G/WLAN network. Vertical handoffs often fail due to the...

Much of interest has been involved in integrating UMTS and WLAN networks in order to take full advantage of the two. In such an integrated network, UMTS subscribers can access to UMTS services through 3G or WLAN access networks. This is highly desirable because network operators will use WLAN hotspots to increase network coverage, while offering subscribers with high-speed connections to 3G net...

In the new era of wireless communication, Wireless Local Area Network has emerged as one of the key players in the wireless communication family. It is now a trend to develop the WLAN in various colleges and office campuses for increasing productivity and quality of goods. There are many obstacles when deploying WLAN, which demands seamless indoor handover. The objective of the work reported he...

1. INTRODUCTION With the enormous growth of computer-based terminals, the demands for indoor network which enable us to transmit and share digital information have been rapidly increased. As a method to form indoor office/home network, wireless LAN (WLAN) systems have taking a great attention, as they provides attractive features such as an ease of network constructions, a flexibility of networ...

The integration of WLANs and 3G networks has recently attracted much attention. To support seamless service between 3G and WLAN networks, low latency access control mechanisms of the two networks are highly required. This work presents a novel access control mechanism, which aims to support seamless services for an integrated 3G-WLAN network. The proposed method, based on a loose coupling archi...