Wireless Internet telecommunications

269 Pages·2005·6.309 MB·English

by  K. Daniel Wong

Wireless Internet
Telecommunications
ForalistingofrecenttitlesintheArtechHouseMobile
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Wireless Internet
Telecommunications
K. Daniel Wong
www.artechhouse.com
LibraryofCongressCataloging-in-PublicationData
Wong,K.Daniel.
WirelessInternettelecommunications/K.DanielWong.
p.cm.—(ArtechHousemobilecommunicationsseries)
Includesbibliographicalreferencesandindex.
ISBN1-58053-711-1(alk.paper)
1.WirelessInternet. 2.Wirelesscommunicationsystems. I.Title. II.Series
TK5103.4885.W57182005
004.67’8—dc22
2004058540
BritishLibraryCataloguinginPublicationData
Wong,K.Daniel
WirelessInternettelecommunications.
—(ArtechHousemobilecommunicationsseries)
1.WirelessInternet 2.Computernetworkprotocols 3.Wirelesscommunication
systems
I.Title
621.3’8212
ISBN1-58053-711-1
CoverdesignbyYekaterinaRatner
©2005ARTECHHOUSE,INC.
685CantonStreet
Norwood,MA02062
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markorservicemark.
InternationalStandardBookNumber:1-58053-711-1
10987654321
Contents
Preface xi
Acknowledgments xiii
CHAPTER 1
Introduction 1
1.1 AnExcitingFuture 1
1.2 Requirements 3
1.2.1 TechnologicalRequirements 4
1.3 Preview 6
1.4 ThemesandPrinciples 8
1.5 Scope 11
1.6 Summary 12
References 13
CHAPTER 2
The Internet 15
2.1 ShortHistory 17
2.2 Routing 18
2.2.1 Addressing 19
2.2.2 HierarchicalRouting 23
2.3 Protocols 23
2.3.1 IP 24
2.3.2 TCP 24
2.4 BuildingtheInternet 26
2.4.1 TheInternetinPractice 26
2.4.2 DesignPhilosophy 28
2.4.3 Applications 28
2.4.4 NewRequirementsandRecentHistory 29
2.5 FurtherReadingandSummary 30
References 30
2.5 Appendix2A TheIPHeader 30
2A.1 IETFWorkingGroups 32
v
vi Contents
CHAPTER 3
Wireless Networks 35
3.1 ShortHistory 36
3.2 TypesofWirelessNetworks 39
3.2.1 WirelessWideAreaNetwork(WWAN):GSM 40
3.2.2 WirelessLocalAreaNetwork(WLAN):802.11 46
3.2.3 WirelessPersonalAreaNetwork(WPAN):Bluetooth 49
3.3 Summary 52
References 52
3.3 Appendix3A BriefIntroductiontoAspectsoftheWireless
PhysicalLayer 53
CHAPTER 4
Multimedia over IP 55
4.1 Motivation 56
4.1.1 EfficientDigitalVoiceCoding 56
4.1.2 SupportforDifferentLevelsofQualityandDifferentMedia 57
4.1.3 NetworkandServiceIntegration 57
4.1.4 StatisticalMultiplexing 57
4.1.5 Assessment 58
4.2 Requirements 59
4.2.1 QoSandTransportRequirements 59
4.2.2 CodingRequirements 59
4.2.3 OtherNetworkElements 60
4.2.4 SignalingRequirements 63
4.3 IssuesandChallenges 63
4.4 TransportProtocols 64
4.4.1 TCP 64
4.4.2 UDP 65
4.4.3 RTP 65
4.5 WirelessMultimediaoverIP 68
4.6 Summary 69
References 69
CHAPTER 5
Session Initiation Protocol (SIP) 71
5.1 RequirementsforSessionInitiation 73
5.1.1 BasicRequirementsandCharacteristics 73
5.1.2 AdditionalRequirements 74
5.2 FundamentalsofSIP 74
5.2.1 LocatingOtherSIPUsers 76
5.2.2 SIPRegistration 80
5.2.3 SessionParameterNegotiation 81
Contents vii
5.2.4 SIPforTelephonyandPSTNInterworking 81
5.3 DiggingDeeper 82
5.3.1 Requests 83
5.3.2 Responses 83
5.3.3 MoreonSIPProxies 85
5.4 SDP,Parameter,andQoSNegotiations 86
5.4.1 SDPDesignPhilosophy 86
5.4.2 UsingSDPwithSIP 86
5.5 SIPinWirelessNetworks 87
5.6 Summary 87
References 88
5.6 Appendix5A Notation 88
5A.1 ISUPSignaling 88
CHAPTER 6
Mobility Management 91
6.1 ANetwork-LevelSolution:MobileIP 92
6.1.1 TheProblemAddressed 92
6.1.2 MobileIP 92
6.2 MobilityConcepts 100
6.2.1 LocationManagementandHandoffs 100
6.2.2 TypesofMobility 101
6.2.3 Layer2VersusLayer3Mobility 104
6.3 AlternativeIPMobilitySchemes 105
6.3.1 SIP-BasedMobility 106
6.3.2 Transport-LayerApproaches 107
6.3.3 DynamicDNS 108
6.4 MicromobilityandFastHandoff 109
6.4.1 HierarchicalMobileIP 110
6.4.2 Host-BasedRoutingSchemes 111
6.4.3 802.11WLAN 113
6.4.4 GPRS 115
6.4.5 OtherFastHandoffApproaches 115
6.4.6 ReducingtheImpactofHandoffLatency 116
6.5 Summary 116
References 117
CHAPTER 7
QoS 119
7.1 Introduction 119
7.2 IPQoS:Mechanisms 120
7.2.1 IntroductiontoIPQoS 120
7.2.2 ScopeandOutline 121
viii Contents
7.2.3 Requirements 121
7.2.4 ResourceReservation 122
7.2.5 AdmissionControl 123
7.2.6 PacketClassificationandMarking 125
7.2.7 QueuingDisciplines 125
7.2.8 TrafficShaping 127
7.2.9 Policing 129
7.2.10 RoutingControlandTrafficEngineering 130
7.3 IPQoSFrameworks 131
7.3.1 IntServ 132
7.3.2 DiffServ 133
7.4 QoSinWirelessNetworks 135
7.4.1 WLANQoSSupport 135
7.4.2 QoSandMobility 139
7.5 Summary 140
References 141
CHAPTER 8
Network Security 143
8.1 Introduction 143
8.1.1 Requirements 144
8.1.2 Solutions 146
8.2 IPSecurity 148
8.2.1 TheNeedforSecurity 148
8.2.2 IPsec 151
8.3 SecurityinWirelessNetworks 152
8.3.1 WLANSecurity 153
8.3.2 GSMSecurity 154
8.3.3 SecurityandMobileIP 157
8.4 Summary 161
References 161
CHAPTER 9
IPv6 163
9.1 IPv6DesignConsiderations 163
9.1.1 ShortcomingsofIPv4 164
9.1.2 OtherDesirableFeatures 165
9.2 IPv6FeatureOverview 165
9.2.1 ImplicationsofLargerAddressSpace 166
9.2.2 Addressing 168
9.2.3 CoexistenceofIPv4andIPv6 170
9.3 IPv6SelectedProcedures 170
9.3.1 HeaderProcessing 170
Contents ix
9.3.2 AddressAutoconfiguration 171
9.3.3 NeighborDiscovery 173
9.4 IPv6andWireless 175
9.4.1 MobileIPv6 175
9.4.2 SecurityIssuesinMIPv6 178
9.5 Summary 179
References 179
CHAPTER 10
Services and Applications 181
10.1 IPConnectivityorMore? 181
10.2 Middleware—OpenServiceAccess 183
10.2.1 HowOSAWorks 184
10.3 WirelessDeviceService–EnablingTechnologies 185
10.4 ApplicationsoftheFuture 187
10.4.1 Location-BasedServices 188
10.4.2 Presence 188
10.5 Summary 188
10.5 References 189
CHAPTER 11
Evolution from GSM to UMTS 191
11.1 FromGSMtoGPRS 192
11.1.1 Overview 192
11.1.2 MoreDetails 193
11.1.3 GPRSandMobility 196
11.1.4 GPRSandQoS 198
11.1.5 GPRSandSecurity 199
11.1.6 GPRSandWirelessIP 200
11.2 MovingTowards3G 200
11.3 UMTS 203
11.3.1 QoS 203
11.3.2 Security 207
11.3.3 DifferentReleases 208
11.3.4 Comparisonwithcdma2000Development 210
11.4 Summary 212
11.4 References 212
CHAPTER 12
The IP Multimedia Subsystem (IMS) 213
12.1 MotivationsandRequirements 213
12.1.1 UsingSIP 215
12.1.2 OtherRequirements 217