In this paper, we analyze and compare the performance of two soft handoff schemes for CDMA-based IMT-2000-like wireless packet voice/data networks. In the first scheme, handoff request of voice or data traffic is equally queued during the soft handoff, and in the second scheme, data traffic is forcibly dropped when the destination cell has no channel to handoff, and only the handoff requests of...

In this paper we introduce a protocol for end-to-end handoff management in heterogeneous wireless IP-based networks. The protocol is based on the stream control transmission protocol (SCTP), and employs a soft-handoff mechanism that uses end-to-end semantics for signaling handoffs and for transmitting control messages. The objective of this protocol is first to reduce the home registration dela...

In multimedia cellular networks, when a Mobile Host requests multimedia services, it may experience handoffs to several cells before the request is completely served. If a target cell cannot provide adequate bandwidth for a service request, instead of directly dropping the request, the MH is put into the handoff queue and hopefully the requested bandwidth can be satisfied by later released band...

Background: During the analyses of adverse events, a commonly described risk factor is the sharing of patient information. Objective: The objective for this project was to better understand and improve the postoperative handoff process for children with heart disease. Methods: The existing handoff process was evaluated and improved using Six Sigma methodology and medical simulation training. Ti...

Advancements in technology have led to the development of various services. This in turn has led to the user being connected anywhere and everywhere. Necessity has come for the services to be integrated and used. When a single service cannot provide the necessary signal strength, probability is provided for the user to switch over to a service that has better signal strength. This process is ca...

Evolved Packet System (EPS) presents the EPS evolution of the 3G/UMTS standard introduced by the 3rd Generation Partnership Project (3GPP) standard committee. Interworking issues between EPS and IEEE 802.11 networks will become a new challenging problem. In this paper, we propose a fast seamless handoff scheme using a optimized PMIPv6 between IEEE 802.11 (WiFi) and EPS networks, without modifyi...

Handoff procedure in IEEE 802.11 wireless networks must be accomplished with as little interruption as possible to maintain the required quality of service (QoS). We have developed a fast handoff scheme, called AuthScan, to reduce the time-consuming channel scanning latency. AuthScan comprises two steps: First, a client caches its handoff history with beacon information. Second, when in need of...

IMPORTANCE Handoff miscommunications are a leading cause of medical errors. Studies comprehensively assessing handoff improvement programs are lacking. OBJECTIVE To determine whether introduction of a multifaceted handoff program was associated with reduced rates of medical errors and preventable adverse events, fewer omissions of key data in written handoffs, improved verbal handoffs, and ch...

It is well known that to provide seamless mobility and transmission in heterogeneous wireless networks, a vertical handoff technique is required to guarantee an Always Best Connected. This paper thus presents a cost-based vertical handoff algorithm with combination prediction of SINR (CPSVH) in heterogeneous wireless networks to make handoff decision. Our approach involves two steps, first SINR...

Optimizations to reduce handoff delays inherent in Mobile IPv6 Route Optimization as well as IPv6 router discovery, address configuration, and movement detection have so far been mostly considered on an individual basis. This document evaluates three integrated solutions for improved handoff experience in surroundings with different preconditions: reactive handoffs with unmodified routers, reac...