نتایج جستجو برای: handover

تعداد نتایج: 3753  

2011

We propose and estimate a novel transport layer mobility management scheme: Seamless IP diversity based Generalized Mobility Architecture (SIGMA). SIGMA provides seamless handover for mobile hosts and is based on Stream Control Transmission Protocol (SCTP), which is a new dependable transport protocol to transport SS7 signaling messages over IP network. We also show that our handover scheme can...

2003
Hu Wang Anand R. Prasad

This paper presents solutions for security context transfer for vertical handover between heterogeneous networks. Seamless vertical handover is an important function of Beyond 3G systems. Context transfer can help support seamless vertical handover while maintaining required security level. So as to come to solutions for security context transfer, this paper first analyses trust relationship be...

2014
Dominik Choromanski Joel Frederick George Michael McKelvey Hong Wang

Currently, no reported studies have evaluated intraoperative handover among anesthesia providers. Studies on anesthetic handover in the US recovery room setting observed that handover processes are insufficient and, in many instances, significant intraoperative events are disregarded. An online survey tool was sent to anesthesia providers at US anesthesia residency programs nationwide (120 out ...

2012
Seyyed Masoud Seyyedoshohadaei Borhanuddin Mohd Ali Sabira Khatun

The most attractive feature of WiMAX is arguable the mobility capability that IEEE 802.16e (IEEE, 2004) standard adds to the previous standard. With mobility support, handover has become one of the most important factors that impact the performance of IEEE 802.16e system. Handover is the process of maintaining active sessions of a mobile station when it migrates from current base station to tar...

Journal: :Wireless Personal Communications 2013
Mohammed Awadh Ben-Mubarak Borhanuddin Mohd Ali Nor Kamariah Noordin Alyani Ismail Ng Chee Kyun

Mobile WiMAX is a broadband technology that is capable of delivering triple play services (voice, data, and video). However, mobility in mobile WiMAX system is still an issue when the mobile station (MS) moves and its connection is handed over between base stations (BSs). In the handover process, scanning is one of the required phases to find the target BS. During the handover scanning process,...

Journal: :BMJ quality & safety 2014
Eleanor R Robertson Lauren Morgan Sarah Bird Ken Catchpole Peter McCulloch

BACKGROUND Modern medical care requires numerous patient handovers/handoffs. Handover error is recognised as a potential hazard in patient care, and the information error rate has been estimated at 13%. While accurate, reliable handover is essential to high quality care, uncertainty exists as to how intrahospital handover can be improved. This systematic review aims to evaluate the effectivenes...

2012
Kire Jakimoski Toni Janevski

The vertical handover decision strategy in the heterogeneous wireless networks is very challenging issue because it needs to deal with many different radio access networks and make decisions for vertical handover calls between them. Due to traffic offloading the decisions for vertical handovers to WLAN hotspots in heterogeneous wireless networks are very important because they impact the QoS of...

2007
Liping WANG Fuqiang LIU

Broadband Wireless Networks based on IEEE 802.16 standard are developed to extend the wired networks with more efficient deployment and lower maintenance cost. IEEE 802.16e standard is proposed to support the mobility up to 60km/h with the data transmission rate up to 2Mbps, so handover has become one of the most important factors that impact the performance of IEEE 802.16e system. In order to ...

2011
Magdy M. Ibrahim

Abstract—One of the most important requirements of the next generation mobile networks is to guarantee convergence among all of the current wireless networks. So we propose an open layer that supports the handover functionalities across different wireless access networks. In this paper we focus on how to exchange the handover information among any wireless network. Handover depends not only on ...

2013
JIANBO YANG XINSHENG JI

Cross layer handover schemes are expected to provide seamless services for mobile terminal in the heterogeneous wireless networks. To reduce the handover delay time, link layer must timely trigger handover protocols of layer 3 so that they can finish handover procedures before current wireless link terminates. Because of limited computing power with the mobile terminal and larger packet loss ra...

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