Chapter 7 James F.Kurose I Keith W.Ross Wireless and Mobile Networks 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. COMPUTER In return for use,we only ask the following: NETWORKING If you use these slides(e.g.,in a class)that you mention their A TOP-DOWN APPROACH source(after all,we'd like people to use our book!) tghthtdtion 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. Computer Networking:A For a revision history,see the slide note for this page. Top-Down Approach Thanks and enjoy!JFK/KWR 8th edition All material copyright 1996-2020 Jim Kurose,Keith Ross J.F Kurose and K.W.Ross,All Rights Reserved Pearson,2020
Computer Networking: A Top-Down Approach 8 th edition Jim Kurose, Keith Ross Pearson, 2020 Chapter 7 Wireless and Mobile Networks 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. For a revision history, see the slide note for this page. Thanks and enjoy! JFK/KWR All material copyright 1996-2020 J.F Kurose and K.W. Ross, All Rights Reserved
Wireless and Mobile Networks:context more wireless(mobile)phone subscribers than fixed (wired)phone subscribers (10-to-1 in 2019)! more mobile-broadband-connected devices than fixed-broadband- connected devices devices(5-1 in 2019)! 4G/5G cellular networks now embracing Internet protocol stack, including SDN 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
Wireless and Mobile Networks: context Wireless and Mobile Networks: 7-2 ▪ more wireless (mobile) phone subscribers than fixed (wired) phone subscribers (10-to-1 in 2019)! ▪ more mobile-broadband-connected devices than fixed-broadbandconnected devices devices (5-1 in 2019)! • 4G/5G cellular networks now embracing Internet protocol stack, including SDN ▪ two important (but different) challenges • wireless: communication over wireless link • mobility: handling the mobile user who changes point of attachment to network
Chapter 7 outline Introduction Wireless Mobility -Wireless Links and network Mobility management:principles characteristics Mobility management:practice WiFi:802.11 wireless LANs ·4G/5 G networks Cellular networks:4G and 5G ·Mobile IP Mobility:impact on higher-layer protocols Wireless and Mobile Networks:7-3
Chapter 7 outline ▪ Introduction Wireless ▪ Wireless Links and network characteristics ▪ WiFi: 802.11 wireless LANs ▪ Cellular networks: 4G and 5G Mobility ▪ Mobility management: principles ▪ Mobility management: practice • 4G/5G networks • Mobile IP ▪ Mobility: impact on higher-layer protocols Wireless and Mobile Networks: 7- 3
Elements of a wireless network wired network infrastructure Wireless and Mobile Networks:7-4
Elements of a wireless network Wireless and Mobile Networks: 7- 4 wired network infrastructure
Elements of a wireless network wireless hosts laptop,smartphone,loT 。run applications may be stationary(non-mobile)or mobile wired network wireless does not always mean mobility! infrastructure Wireless and Mobile Networks:7-5
Elements of a wireless network Wireless and Mobile Networks: 7- 5 wired network infrastructure wireless hosts ▪ laptop, smartphone, IoT ▪ run applications ▪ may be stationary (non-mobile) or mobile • wireless does not always mean mobility!