17 Resources for

handoff

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Mobile Handoff effect on battery consumption: Do frequent handoff consume more battery power in a mobile station in case of a cellular network; Tags: satish.rpr@..., networking, mobile, battery, handoff, mobile marketing; Discussion threads 2007-02-20
Proactive Scan: Fast Handoff With Smart Triggers for 802.11 Wireless LAN: It has been a challenging problem to support VoIP-type delay sensitive applications in an 802.11 wireless LAN because the standard handoff procedure implemented in many current 802.11 products occurs a delay deem unacceptable to VoIP users. To reduce this delay, the authors have developed a fast handoff scheme called Proactive...; Tags: Technique, 802.11 Wireless LAN, IEEE 802.11, Handoff, Wireless LANs, Wi-Fi, Wireless, Productivity; White papers 2007-01-29
TCP HandOff: A Practical TCP Enhancement for Heterogeneous Mobile Environments: Many different kinds of wireless access networks have been deployed for the Internet and have become inseparable parts of the Internet. But TCP, the most widely used transport protocol of the Internet, was designed for stationery hosts. In particular, TCP faces severe challenges when user moves around in these networks...; Tags: Mobile, Handoff, TCP, TCP-HO, Tcp/Ip, Networking; White papers 2006-11-20
Adding Network-Layer Intelligence to Mobile Receivers for Solving Spurious TCP Timeout During Vertical Handoff: With the help of Mobile IP/IPv6 and soft handoff, on-going TCP sessions can remain active and handoff packet loss can be avoided. However, TCP still faces several performance degradation issues due to the disparities in bandwidth and propagation delay between different access networks. Particularly, during vertical handoffs, some undesirable phenomenon...; Tags: Mobile, Handoff, TCP, Tcp/Ip, Networking; White papers 2006-09-18
Fast Handoff for Seamless Wireless Mesh Networks: This paper presents the architecture and protocols of SMesh, a completely transparent wireless mesh system that offers seamless, fast handoff, supporting VoIP and other real time application traffic for any unmodified 802.11 device. In SMesh, the entire mesh network is seen by the mobile clients as a single, omnipresent access...; Tags: Mobile, Network, Handoff, Access Point, Mesh Networking, Wireless, Networking; White papers 2006-06-22

An Adaptive Multipath Protocol for Efficient IP Handoff in Mobile Wireless Networks: Achieving IP handoff with a short latency and minimal packet loss is essential for mobile devices that roam across IP subnets. Many existing solutions require changes to be made to the network or transport layer, and they tend to suffer from long handoff latency in either soft or hard handoff...; Tags: Mobile, Network, Handoff, IP, Wireless Network, Network Technology, Networking; White papers 2006-05-12
TCP Offload Through Connection Handoff: This paper presents a connection handoff interface between the operating system and the network interface. Using this interface, the operating system can offload a subset of TCP connections in the system to the network interface, while the remaining connections are processed on the host CPU. Offloading can reduce computation and...; Tags: Network, Handoff, Operating System, Memory Bandwidth, Association For Computing Machinery, TCP, Tcp/Ip, Networking; White papers 2006-04-21
Handover (Handoff) Failure: would you poease tell me the possible all causes of HandoverHandoff failures in GSM neworkLet see, there is the followingSystem FailureProtocol ErrorData Missing in positionTarget unreachableLocation request abortfacility not supportedInter-BSC handover ongoingIntra-BSC completeCongestionand unspecifiedthank u Mr Jim for providing me with this preciousknowledge.--Shekhar; Tags: Handover; Q&A 2006-04-17
DiffServ QoS Provisioning for Real Time Traffic in Frequent Handoff MobileIPv6 Networks: The next-generation mobile networks are evolving towards a versatile IP-based network that can provide various real-time multimedia services to mobile users. Two major challenges in establishing such a wireless mobile Internet are support of fast handoff and provision of Quality of Service QoS over IP-based wireless access networks. In this...; Tags: IPv6, Mobile, Network, Handoff, IPv6 Network, Testbed, Advertising & Promotion, Networking, Marketing; White papers 2006-04-01
Use our rules of engagement policy to set guidelines for internal consulting: Not what I was looking forI was hoping to find a policy document that would address the "handoff" between Sales Engineering and Implementation (Consulting, Post Sales Services, etc.). This handoff is tricky, and keeping expectations properly set can be difficult. I'm trying to craft a policy document for both the...; Tags: handoff, sales engineer, chrispressley2000@..., it management, consulting, sales; Discussion threads 2006-03-09
Make-Before-Break MAC Layer Handoff in 802.11 Wireless Networks: To support real-time applications such as Voice-over-IP within an 802.11Wireless LAN, efficient handoff mechanisms are required when a mobile client moves from one Access Point to another. This paper presents the design, implementation and performance results of MAC layer (layer-2) handoff algorithms which implement make-before-break mechanisms at the MAC layer...; Tags: Algorithm, IEEE 802.11, MAC, Network, Handoff, Wireless Network, Access Point, Engineering, Wireless; White papers 2006-02-28
Multi Layer Rules Based Framework for Vertical Handoff: Seamless interoperability between two dissimilar networks require handoff from one network to the other. Such handoffs are known as vertical handoffs. Vertical handoff introduces a shift in the approach to handoffs. It deals with handoffs between dissimilar networks, such as from an access point to a base station or vice...; Tags: Handoff, Networking; White papers 2005-08-02
Soft Handoff and Uplink Capacity in a Two-Tier CDMA System: In systems using Code-Division Multiple Access CDMA, user capacity is enhanced by using soft handoff. Soft handoff means that a given user communicates simultaneously with two or more base stations until its path gain to just one of them is several dB stronger than its path gain to any other....; Tags: CDMA, Handoff, Cellular Phones, Consumer Electronics, Personal Technology; White papers 2005-03-18
Design and Evaluation of iMesh: An Infrastructure-Mode Wireless Mesh Network: In this paper, iMesh, an infrastructure-mode 802.11-based mesh network, is designed and evaluated. In the paper, 802.11 access points double as routers making the network architecture completely transparent to mobile clients, who view the network as a conventional wireless LAN. Layer-2 handoffs between access points trigger routing activities inside the...; Tags: Network, Handoff, iMesh, Wireless LANs, Mesh Networking, Wireless, Networking, Wi-Fi; White papers 2005-03-17
HAMS: Layer 2 Handoff Accurate Measurement Strategy in WLANs 802.11: The layer 2 handoff latency in WLANs 802.11 has traditionally been measured as the time between the first probe request message sent by the mobile station and the arrival of a reassociation response message from an access point. However, that measure does not represent the time the station remains disconnected...; Tags: Strategy, IEEE 802.11, Layer 2, Handoff, WLAN, Handoff Latency, Wireless LANs, Wi-Fi, Wireless; White papers 2005-02-18
An Inter-Domain Routing Protocol for Multi-Homed Wireless Mesh Networks: This paper presents a routing protocol for multi-homed wireless mesh networks that provide uninterrupted connectivity and fast handoff. The authors approach integrates wireless and wired connectivity, using multicast groups to coordinate decisions and seamlessly transfer connections between several Internet gateways as mobile clients move between access points. The protocol optimizes...; Tags: Handoff, Protocol, Johns Hopkins University, Wi-Fi, Mesh Networking, Wireless, Networking; White papers
SyncScan: Practical Fast Handoff for 802.11 Infrastructure Networks: This paper describes SyncScan, a low-cost technique for continuously tracking nearby base stations by synchronizing short listening periods at the client with periodic transmissions from each base station. The paper implements this SyncScan algorithm using commodity 802.11 hardware and demonstrates that it allows better handoff decisions and over an order...; Tags: Base Station, IEEE 802.11, Network, Handoff, San Diego, University Of California, Wireless LANs, Wi-Fi, Wireless; White papers

Additional Resources

A New Prioritized Fast Handoff Protocol for Mobile IP: Mobile IP protocol has been designed to handle global and seamless user's mobility on the Internet. However, Mobile IP suffers from handoff latency due to slow handoff discovery and binding association notification. To reduce this latency, the paper proposes a new handoff protocol where it attributes a high priority to...; Tags: Mobile, IP, Mobile IP, Handoff Protocol, Mobile IP Protocol; White papers 2006-11-19
Performance of Neural Network Handoff Algorithm Under Varying Mobile Velocities: This paper analyses the effects of training on the performance of neural network handoff algorithm in a micro-cellular environment. The paper first describes the neural network handoff decision algorithm as it is applied to the handoff scenario and then introduces the effects and performance of the number of training points...; Tags: Algorithm, Performance, Mobile, Network, Velocity, Neural Network, Training, Performance Criterion, Performance Management, Human Resources, Workforce Management; White papers 2005-08-25
Using Fuzzy Logic to Mitigate IEEE 802.11 Handoff Latency: Multimedia transmissions are delay sensitive Internet applications. Because mobile stations move all of the time, handoff processes are necessary and unavoidable in wireless network environments. Since handoff processes tend to break the communication link, some researches have been done to reduce the break time and arrival delay during Internet multimedia...; Tags: Multimedia, IEEE 802.11, Latency, Mobile, Handoff Latency, Wireless LANs, Internet, Wi-Fi, Wireless, Advertising & Promotion, Marketing; White papers 2005-02-28

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