Handover mechanisms in next generation heterogeneous wireless ...

More documents

Recommendations

Info

SECURITY FOR HANDOVER ACROSS HETEROGENEOUS WIRELESS NETWORKS table is consulted by Diameter agents to find the message destination or the next AAA hop that may reside in other realms. A Diameter node can process a request message locally, or forward the message according to the final destination of that message. The Local Action value of the realm routing entry in a Diameter node determines how a message with a specific Destination- Realm AVP is processed. The Diameter base protocol [62] defines four types of actions that can be imposed on a message: Local, Relay, Proxy and Redirect. It is noted in [62] that Diameter agents must support at least one of the Local, Relay, Proxy and Redirect modes of operation, but do not support all modes of operation. Diameter defines relay, proxy, and redirect agents, and requires that agents maintain transaction state, which is used for failover purposes. � Relay Agents: accept requests and route messages to other Diameter nodes based on the Destination-Realm of messages. Relay agents can manipulate Diameter messages through inserting and removing routing information without modifying any non-routing AVPs; � Proxy Agents: route messages using the realm routing table as relay agents do. However, they can modify messages to apply local policies, and add new AVPs to Diameter messages prior to routing; � Redirect Agents: do not route messages, but simply return an answer with the information necessary for Diameter agents to communicate directly, without modifying messages. As discussed in Sec. 3.2, the EAP three-party authentication model is considered as a standard method to accomplish access control through an AAA protocol in modern wireless networks. The Diameter NAS application specification (NASREQ), describing the interaction between NAS and Diameter server is standardised in IETF RFC 4005 [63]. Along with the Diameter EAP application (RFC 4072) [65], it supports the EAP authentication through a NAS with a Diameter server. The Diameter NAS application defines a number of commands and AVPs for authentication and authorisation. The NAS and Diameter server utilises these commands to conduct operations such as re- - 54 -
SECURITY FOR HANDOVER ACROSS HETEROGENEOUS WIRELESS NETWORKS authentication and RADIUS/Diameter protocol interactions. The mechanism of Diameter support for EAP is similar to what RADIUS does for EAP, by encapsulation of EAP messages. - 55 -
Page 1 and 2:
Handover Mechanisms in Next Generat
Page 3 and 4:
ACKNOWLEDGMENT First of all, I woul
Page 5 and 6:
TABLE OF CONTENTS 4.4.2 Power Save
Page 7 and 8:
LIST OF FIGURES LIST OF FIGURES Fig
Page 9 and 10:
LIST OF FIGURES Figure 7.2 A generi
Page 11 and 12:
ABSTRACT New access technologies su
Page 13 and 14:
Chapter 1 INTRODUCTION New access t
Page 15 and 16: INTRODUCTION becomes available. Han
Page 17 and 18: INTRODUCTION The above multipliciti
Page 19 and 20: INTRODUCTION network trust pattern
Page 21 and 22: INTRODUCTION 1.3 Related Publicatio
Page 23 and 24: INTRODUCTION TECHNICAL REPORTS XIII
Page 25 and 26: HANDOVER MANAGEMENT horizontally. H
Page 27 and 28: HANDOVER MANAGEMENT The objective o
Page 29 and 30: HANDOVER MANAGEMENT air interface,
Page 31 and 32: HANDOVER MANAGEMENT proposed archit
Page 33 and 34: HANDOVER MANAGEMENT Access point (A
Page 35 and 36: HANDOVER MANAGEMENT users. Moreover
Page 37 and 38: HANDOVER MANAGEMENT For IEEE 802.11
Page 39 and 40: HANDOVER MANAGEMENT The two schemes
Page 41 and 42: HANDOVER MANAGEMENT When a MH is mo
Page 43 and 44: 3.1 Introduction Chapter 3 HANDOVER
Page 45 and 46: SECURITY FOR HANDOVER ACROSS HETERO
Page 65: SECURITY FOR HANDOVER ACROSS HETERO
Page 69 and 70: DYNAMIC NEIGHBOUR TRUST INFORMATION
Page 93 and 94: Chapter 5 TRUST ASSISTED HANDOVER A
Page 95 and 96: TRUST ASSISTED HANDOVER ALGORITHM F
Page 117 and 118:
TRUST ASSISTED HANDOVER ALGORITHM F
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Chapter 6 PROXY BASED AUTHENTICATIO
Page 125 and 126:
PROXY BASED AUTHENTICATION LOCALISA
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
MULTI-INTERFACE MOBILE MODEL FOR ME
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
CONCLUSIONS AND FUTURE RESEARCH WOR
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
ABBREVIATIONS 3G 3rd Generation Wir
Page 177 and 178:
ABBREVIATIONS LS Location Server MH
Page 179 and 180:
ABBREVIATIONS THOA Trust Assisted H
Page 181 and 182:
REFERENCES [12] C. Politis, T. Oda,
Page 183 and 184:
REFERENCES [37] Wi-Fi Alliance, "Wi
Page 185 and 186:
REFERENCES presented at IEEE Intern
Page 187 and 188:
REFERENCES [90] R. Verdone and A. Z
Page 189:
REFERENCES [116] K. E. Malki and H.
show all

Handover mechanisms in next generation heterogeneous wireless ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?