Survey on Handoff Techniques
نویسندگان
چکیده
: Today, the world is moving very fast because of latest technologies and its innovations. Out of these technologies mobile communication plays an important role in our daily life, since it offers flexibility and mobility. Mobility is the most important feature of a mobile communication system. Success of mobile communication relies on its continuous service provided to the user. Usually, continuous service is achieved by the success of handoff (or handover) from one cell to another. This paper gives an overview of need for handoff, types of handoff, performance metrics, and handoff process, factors that affect handoff process, handoff schemes and algorithms. KeywordsHandoff, Forced Termination Probability, Handoff Performance Metrics, Resource Management, Handoff Prioritization Scheme.
منابع مشابه
Seamless handoff in Next Generation Wireless System
-Next Generation Wireless system (NGWS) consists of heterogeneous wireless networks. The heterogeneous wireless network should be always best connected in order to satisfy the seamless characteristics in mobile communication. NGWS call for the integration and interoperation of mobility management techniques in heterogeneous networks. One of the research challenges for NGWS is the design of inte...
متن کاملAdaptive call admission control and resource allocation in multi server wireless/cellular network
The ever increasing demand of the subscribers has put pressure on the capacity of wireless networks around the world. To utilize the scare resources, in the present paper we propose an optimal allocation scheme for an integrated wireless/cellular model with handoff priority and handoff guarantee services. The suggested algorithm optimally allocates the resources in each cell and dynamically adj...
متن کاملTransition of Care Practices from Emergency Department to Inpatient: Survey Data and Development of Algorithm
INTRODUCTION We aimed to assess the current scope of handoff education and practice among resident physicians in academic centers and to propose a standardized handoff algorithm for the transition of care from the emergency department (ED) to an inpatient setting. METHODS This was a cross-sectional survey targeted at the program directors, associate or assistant program directors, and faculty...
متن کاملInitial assessment of patient handoff in accredited general surgery residency programs in the United States and Canada: a cross-sectional survey.
BACKGROUND Communication errors are considered one of the major causes of sentinel events. Our aim was to assess the process of patient handoff among junior surgical residents and to determine ways in which to improve the handoff process. METHODS We conducted nationwide surveys that included all accredited general surgery residency programs in the United States and Canada. RESULTS Of the 24...
متن کاملA Virtual Access Point Based Fast Handoff Scheme of IEEE 802.11
–In the fast growing wireless technologies, IEEE 802.11 handoff is a big issue in communication. The seamless handoff problem in WLANs is a very important design issue to support the new astounding and amazing applications in WLANs, particularly for a user in a mobile vehicle. The entire delay time of a handoff is divided into probe, authentication, and reassociation delay times. Because the pr...
متن کامل