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GSM System - Handover
White Papers As an example of a mobile network, the PLMN - Public Land Mobile Network is considered and the case-study concentrates on the handover procedure which controls the dynamic topology of the network. In a mobile communication network some nodes change...
[January 1, 1970, 0:59]
An Inter-Band Handover Technique For Testing Tri-Band GSM Mobiles Efficiently
White Papers This paper proposes a new, fast inter-band handover mechanism that can significantly reduce the switching time between the bands during testing. Because inter-band switching between the 900 MHz GSM/1800 MHz DCS bands and the 1900 MHz PCS band is...
[January 1, 1970, 0:59]
An Architectural Approach To Mobility - The Handover Case Study
White Papers This paper discusses the applicability of this approach to location-aware systems through the modelling of the GSM handover protocol, namely the way communication with a moving cellular phone passes from one station to another.
[January 1, 1970, 0:59]
Performance Of An Overlay Bluetooth-WiFi Network With Vertical Handover
White Papers The performance of an overlay Bluetooth and IEEE 802.11b (WiFi) network is considered in terms of QoS parameters, that is packet latency and throughput, in the presence of a vertical handover procedure.
[January 1, 1970, 0:59]
Providing Seamless Mobility With Competition Based Soft Handover Management
White Papers This paper describes a new handover strategy for end-to-end mobility called Competition based Soft Handover Management (CSHM). During a handover, redundant packet streams are sent through multiple connections which are later merged into one stream...
[January 1, 1970, 0:59]
Performance Impact Of Interaction Of ARQ Error Control In Layer 2 And Handover Control In Layer 3 On Wireless TCP
White Papers In wireless environment, TCP suffers from significant performance degradation due to bit errors on wireless link and handover because it responds to all packet losses by invoking congestion control even though packet losses are not related to...
[January 1, 1970, 0:59]
Fast Handover Using Explicit Multicast For IPv6-Based Wireless LAN Networks
White Papers This paper evaluates the improvement of its handover performance and conduct the simulation to compare the different handover performance of X&M scheme and other existing schemes. This thesis is devoted to improve the service performance for the...
[January 1, 1970, 0:59]
Performance Models Of Handover Protocols And Buffering Policies In Mobile Wireless ATM Networks
White Papers This paper presents the first attempt to develop an analytical modeling approach to estimate the performance of handover protocols making use of handover buffers at the base station. By incorporating several approximations, the proposed models...
[January 1, 1970, 0:59]
IP-Based Handover Management Over Heterogeneous Wireless Networks
White Papers The design of an All-IP wireless network requires an efficient and flexible handover management. This paper proposes mechanisms to handle soft-handover management in the IP layer, which can coexist with Mobile IPv6 and allow efficient micro...
[January 1, 1970, 0:59]
Intersystem Handover Simulation
White Papers The action of switching a call in progress from one radio channel to another to secure the continuity of an established call is named handover. As GPRS is based on the 2G GSM network, handover is working with packet switched data connections as well.
[January 1, 1970, 0:59]
Fast Handover Based On Mobile IPv6 For Wireless LAN
White Papers Since Mobile IP induces the handover latency due to mobility management operations, fast handover algorithms have been studied to reduce the latency. Mobile networking technology is progressing to support the requirements of new class of Internet...
[January 1, 1970, 0:59]
Techniques To Reduce IEEE 802.11b MAC Layer Handover Time
White Papers This paper analyzes link-layer handover times in wireless local area networks based on the IEEE 802.11b MAC protocol. The measurements indicate that detection and search phases are the main contributors to the handover time.
[January 1, 1970, 0:59]
Implementation And Evaluation Of An IEEE 802.11 Assisted Mobile IP Handover Scheme
White Papers In order to avoid packet loss during Layer 2 handover (i.e.while the mobile node is searching for a new access point) and during the Mobile IP registration process, packets are buffered at the old Foreign Agent.
[January 1, 1970, 0:59]
Vertical Handover Supporting Pervasive Computing In Future Wireless Networks
White Papers Vertical handover is one of many possible adaptation methods. This paper proposes a vertical handover mechanism suitable for multimedia applications in pervasive systems. The paper focuses on the handover decision making process which uses context...
[January 1, 1970, 0:59]
Development And Implementation Of A Handover Algorithm In Heterogeneous Mobile Environments
White Papers In support of mobility in heterogeneous environments, these systems will require redefined protocols for handover of active connections. With this in mind, this paper presents a handover algorithm and associated signalling protocols for...
[January 1, 1970, 0:59]
A Cross-Layer Based Handover For TCP Applications
White Papers In a mobile communication scenario handover functions must be supported in order to keep connection alive switching between different points of access. Moreover, if the infrastructure is composed of different networks or technologies, intersegment...
[January 1, 1970, 0:59]
A Seamless Handover Mechanism For IEEE 802.16e Broadband Wireless Access
White Papers Handover is one of the most important factors that may degrade the performance of TCP connections and real-time applications in wireless data networks. This paper developed a loss-free handover scheme called LPM (Last Packet Marking) for IEEE...
[January 1, 1970, 0:59]
Modelling The GSM Handover Protocol In CommUnity
White Papers This paper describes the approach and available tool support by modelling essential aspects of the GSM handover protocol. CommUnity is a formal approach to software architecture. It has a precise, yet intuitive mathematical semantics based on...
[January 1, 1970, 0:59]
A New Method To Support UMTS/WLAN Vertical Handover Using SCTP
White Papers This paper proposes a new method to facilitate seamless Vertical HandOver (VHO) between UMTS and WLAN networks using the Stream Control Transmission Protocol (SCTP). The multi-homing capability and Dynamic Address Reconfiguration (DAR) extension of...
[January 1, 1970, 0:59]
Load Balancing Effect Of Inter-Frequency Handover With Pilot Power Tuning In UTRAN
White Papers In future, when several frequencies are required to cover increasing number of users and increasing amount of traffic, Inter-Frequency HandOver (IFHO) will perform an important role in load balancing between frequencies.
[January 1, 1970, 0:59]
