محاسبات موبایل: نظریه و عمل

An undergraduate text on mobile computing, covering all the basic concepts of mobile computing as well as mobile communication. The book also deals with the new concepts that have emerged in recent years like Bluetooth Security and topics on Nokia Handhelds (a topic exclusive to this book). Cover......Page 1 Mobile Computing......Page 4 Copyright......Page 5 Contents......Page 6 Preface......Page 14 Process migration......Page 16 Mobile computing......Page 17 Mobile agents......Page 18 Personal communication systems......Page 19 Context-aware computing......Page 20 Outline of the book......Page 21 Problems......Page 22 Multiple-choice questions......Page 23 Further reading......Page 24 The electromagnetic spectrum......Page 26 Infrared waves......Page 27 Communication satellites......Page 28 Low earth orbit satellites......Page 29 Multiple-access schemes......Page 30 TDMA—Time division multiple access......Page 31 CDMA—Code division multiple access......Page 32 The first generation (1G): 1980......Page 33 The second generation (2G): 1992......Page 34 The third generation (3G): 2000+......Page 35 The fourth generation (4G): 2002+......Page 36 Problems......Page 37 Multiple-choice questions......Page 38 Further reading......Page 39 Wireless Networks......Page 40 The need for new wireless standards......Page 41 Physical layer......Page 42 MAC layer......Page 44 Services......Page 47 Bluetooth......Page 48 Bluetooth protocol stack......Page 50 Bluetooth tracking services......Page 52 Bluetooth frame structure......Page 53 Infrared systems......Page 54 HiperLAN......Page 55 The IEEE 802.16 WiMAX standard......Page 56 Comparison of wireless technologies......Page 57 Summary......Page 58 Multiple-choice questions......Page 59 Further reading......Page 61 What is a process?......Page 62 The steps in process migration......Page 63 The advantages of process migration......Page 67 Alternatives to process migration......Page 68 Problems......Page 69 Multiple-choice questions......Page 70 Further reading......Page 71 Wireless communication......Page 72 Mobility......Page 73 Portability......Page 74 IPv4......Page 76 Goals of mobile IP......Page 77 Mobility support in IPv4......Page 78 Mobility support in IPv6......Page 81 Cellular IP......Page 82 The cellular IP access network......Page 83 TCP for mobility......Page 84 Indirect TCP......Page 85 Snooping TCP......Page 86 Mobile TCP......Page 87 Design issues......Page 88 The CODA file system—A case study......Page 89 Venus states......Page 90 Design criteria......Page 92 Problems......Page 93 Multiple-choice questions......Page 94 Further reading......Page 95 MANET characteristics......Page 96 Classification of MANETs......Page 97 Traditional routing protocols......Page 98 Classification of routing protocols......Page 99 Proactive routing protocols—The DSDV protocol......Page 100 Example of DSDV operation......Page 101 Reactive routing protocols......Page 103 Route discovery in DSR......Page 104 Route cache in DSR......Page 106 Route discovery in AODV......Page 107 Route maintenance in AODV......Page 108 Comparison between DSR and AODV......Page 111 Summary......Page 112 Multiple-choice questions......Page 113 Further reading......Page 115 Applications of wireless sensor networks......Page 116 Differences from mobile ad hoc networks......Page 118 WSN architecture......Page 119 WSN communications architecture......Page 120 Data-centric protocols......Page 121 Sensor protocols for information via negotiation......Page 122 Low-energy adaptive clustering hierarchy......Page 123 TEEN and APTEEN......Page 124 The MICA mote......Page 125 TinyOS......Page 126 Summary......Page 127 Multiple-choice questions......Page 128 Further reading......Page 130 Characteristics of PDAs......Page 132 Network connectivity......Page 134 Palm handhelds......Page 135 Memory management......Page 136 HP handhelds......Page 137 Windows CE......Page 138 Processes and threads......Page 139 The Windows Mobile operating system......Page 140 Specifications of Nokia 9210......Page 142 Features......Page 143 Design......Page 144 Summary......Page 145 Multiple-choice questions......Page 146 Further reading......Page 147 The Web programming model......Page 148 The WAP programming model......Page 149 WAP protocol stack......Page 150 WAP 2.0......Page 151 WAP gateway......Page 152 Push operation......Page 153 Push message format......Page 155 Summary......Page 156 Multiple-choice questions......Page 157 Further reading......Page 159 Logical Mobility II—Mobile Agents......Page 160 Characteristics of mobile agents......Page 161 Client/server and mobile agent architectures......Page 162 Server security......Page 163 Mobile agent platforms......Page 164 Aglets......Page 165 Agent Tcl......Page 167 PMADE......Page 170 Agent submitter......Page 171 Communication managers......Page 173 State managers......Page 174 Security manager......Page 175 Shortcomings of Java......Page 176 Problems......Page 177 Multiple-choice questions......Page 178 Further reading......Page 179 Security Issuesin Mobile Computing......Page 182 Security threats to wireless networks......Page 183 Authentication......Page 184 Confidentiality......Page 185 Integrity......Page 186 Bluetooth security......Page 187 Summary......Page 189 Multiple-choice questions......Page 190 Further reading......Page 192 Implementation of mobile IP......Page 194 Comparison between AODV and DSR protocols......Page 197 Bluetooth application......Page 199 Design of a WAP gateway......Page 204 Mobile agents for network monitoring......Page 205 An IEEE 802.11 LAN for a typical student hostel......Page 209 An application using wireless sensor networks......Page 211 Multiple-choice questions......Page 213 Further reading......Page 215 Java programming language......Page 216 Socket programming......Page 218 Remote procedure call......Page 220 Remote method invocation......Page 222 Appendix B......Page 226 Index......Page 228 "The book covers all basic concepts of mobile computing and communication and also deals with latest concepts like Bluetooth Security and Nokia Handhelds"--Resource description page.