Handover Strategies in GSM System

Table of Contents

Abstract

List of Figures

List of Tables

Abbreviations

Acknowledgment

Chapter 1
1. Introduction
1.1 History of GSM
1.2 Overview of GSM handover
1.2.1 Between calls
1.2.2 During a call
1.3 The connection establishment in WLAN and the scanning concept
1.3.1 Discovery
1.3.2 Authentication
1.3.3 Association, Disassociation and Re-association
1.3.4 Confidentiality
1.3.5 The AP discovery and association
1.3.5.1 Passive scanning
1.3.5.2 Active scanning

Chapter 2
2. Literature review
2.1 Definition of the handover process
2.2 Types of handover technique
2.3 Reasons of handover failure
2.4 The differences between hard, soft and softer handoffs
2.5 SYNC handovers and asynchronous handover
2.6 Emergency handovers
2.7 Vertical and horizontal handover
2.8 “Multilayer Handover” Strategy, “Ping pong effect” and “take-back”
2.9 Handover decisions in GSM
2.10 GSM handover solutions
2.11 Mathematical calculations and modulations

Chapter 3
3. The focus- calculate the optimal timing and distance for GSM vertical handover
3.1 Time Before Vertical Handover (TBVH)
3.1.1 Time Before Vertical Handover (for outdoor environments)
3.1.2 Time Before Vertical Handover (for indoor environments) - Mobile node movement from a normal BS to BBS

Chapter 4
4. The Simulation and Result for the TBVH
4.1 Why Matlab program
4.2 Modulation
4.3 Decision algorithm

Chapter 5
5. Conclusion and Future work

References