Chapter 7 Computer Networking Wireless and A TOP-DOWN APPROACH SEVENTH EDITION Mobile Networks KUROSE·ROSS A note on the use of these Powerpoint slides: We're making these slides freely available to all (faculty,students,readers). They're in PowerPoint form so you see the animations;and can add,modify. and delete slides (including this one)and slide content to suit your needs. They obviously represent a lot of work on our part.In retumn for use,we only ask the following: Computer If you use these slides (e.g.,in a class)that you mention their source Networking:A Top (after all,we'd like people to use our book!) If you post any slides on a ww site,that you note that they are adapted from(or perhaps identical to)our slides,and note our copyright of this Down Approach material. 7th edition Thanks and enjoy!JFK/KWR Jim Kurose,Keith Ross ©K81862知1Rgs1 Resenved Pearson/Addison Wesley April 2016 Wireless and Mobile Networks 7-1
Computer Networking: A Top Down Approach A note on the use of these Powerpoint slides: We’re making these slides freely available to all (faculty, students, readers). They’re in PowerPoint form so you see the animations; and can add, modify, and delete slides (including this one) and slide content to suit your needs. They obviously represent a lot of work on our part. In return for use, we only ask the following: ▪ If you use these slides (e.g., in a class) that you mention their source (after all, we’d like people to use our book!) ▪ If you post any slides on a www site, that you note that they are adapted from (or perhaps identical to) our slides, and note our copyright of this material. Thanks and enjoy! JFK/KWR All material copyright 1996-2016 J.F Kurose and K.W. Ross, All Rights Reserved 7 th edition Jim Kurose, Keith Ross Pearson/Addison Wesley April 2016 Chapter 7 Wireless and Mobile Networks Wireless and Mobile Networks 7-1
Ch.6:Wireless and Mobile Networks Background: wireless(mobile)phone subscribers now exceeds wired phone subscribers(5-to-1)! wireless Internet-connected devices equals wireline Internet-connected devices laptops,Internet-enabled phones promise anytime untethered Internet access two important(but different)challenges wireless:communication over wireless link mobility:handling the mobile user who changes point of attachment to network Wireless and Mobile Networks 7-2
Ch. 6: Wireless and Mobile Networks Background: ▪ # wireless (mobile) phone subscribers now exceeds # wired phone subscribers (5-to-1)! ▪ # wireless Internet-connected devices equals # wireline Internet-connected devices • laptops, Internet-enabled phones promise anytime untethered Internet access ▪ two important (but different) challenges • wireless: communication over wireless link • mobility: handling the mobile user who changes point of attachment to network Wireless and Mobile Networks 7-2
Chapter 7 outline 7.I Introduction Mobility Wireless 7.5 Principles:addressing and routing to mobile users 7.2 Wireless links, characteristics 7.6 Mobile IP ·CDMA 7.7 Handling mobility in 6.73 IEEE 802.I I wireless cellular networks LANs(“Wi-Fi”) 7.8 Mobility and higher-layer 67.4 Cellular Internet Access protocols ·architecture standards(e.g.,3G,LTE) Wireless and Mobile Networks 7-3
Chapter 7 outline 7.1 Introduction Wireless 7.2 Wireless links, characteristics • CDMA 6.73 IEEE 802.11 wireless LANs (“Wi-Fi”) 67.4 Cellular Internet Access • architecture • standards (e.g., 3G, LTE) Mobility 7.5 Principles: addressing and routing to mobile users 7.6 Mobile IP 7.7 Handling mobility in cellular networks 7.8 Mobility and higher-layer protocols Wireless and Mobile Networks 7-3
Elements of a wireless network network infrastructure Wireless and Mobile Networks 7-4
Elements of a wireless network network infrastructure Wireless and Mobile Networks 7-4
Elements of a wireless network wireless hosts- ■laptop,smartphone ■run applications may be stationary(non- network mobile)or mobile infrastructure wireless does not always mean mobility Wireless and Mobile Networks 7-5
wireless hosts ▪ laptop, smartphone ▪ run applications ▪ may be stationary (nonmobile) or mobile • wireless does not always mean mobility Elements of a wireless network network infrastructure Wireless and Mobile Networks 7-5