Ch6_handout

Ch6_handout - EEE459/591 Communication Networks Spring2007...

Info iconThis preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon
6: Wireless and Mobile Networks 6-1 EEE 459/591 Communication Networks Spring 2007 Prof. M. Reisslein Chapter 6 Wireless and Mobile Networks Textbook: Computer Networking: A Top  Down Approach Featuring the  Internet,  3 rd  edition.  Jim Kurose, Keith Ross Addison-Wesley. 
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6: Wireless and Mobile Networks 6-2 Chapter 6: Wireless and Mobile Networks Background:   # wireless (mobile) phone subscribers now exceeds # wired  phone subscribers! computer nets: laptops, palmtops, PDAs, Internet-enabled  phone promise anytime untethered Internet access two important (but different) challenges communication over wireless link handling mobile user who changes point of attachment to network
Background image of page 2
6: Wireless and Mobile Networks 6-3 Chapter 6 outline 6.1 Introduction  Wireless 6.2  Wireless links,  characteristics CDMA 6.3  IEEE 802.11 wireless  LANs (“wi-fi”) 6.4   Cellular Internet Access architecture standards (e.g., GSM) Mobility 6.5  Principles: addressing and  routing to mobile users 6.6  Mobile IP 6.7  Handling mobility in cellular  networks 6.8  Mobility and higher-layer  protocols 6.9   Summary
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6: Wireless and Mobile Networks 6-4 Elements of a wireless network network  infrastructure wireless hosts laptop, PDA, IP phone run applications may be stationary (non-mobile)  or mobile wireless does not always  mean mobility
Background image of page 4
6: Wireless and Mobile Networks 6-5 Elements of a wireless network network  infrastructure  base station typically connected to wired  network relay - responsible for  sending packets between  wired network and wireless  host(s) in its “area” e.g., cell towers  802.11  access points 
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6: Wireless and Mobile Networks 6-6 Elements of a wireless network network  infrastructure  wireless link typically used to connect  mobile(s) to base station also used as backbone link  multiple access protocol  coordinates link access  various data rates,  transmission distance
Background image of page 6
6: Wireless and Mobile Networks 6-7 Characteristics of selected wireless link  standards 384 Kbps 56 Kbps 54 Mbps 5-11 Mbps 1 Mbps 802.15 802.11b 802.11{a,g} IS-95 CDMA, GSM UMTS/WCDMA, CDMA2000 .11 p-to-p link 2G 3G Indoor 10 – 30m Outdoor 50 – 200m Mid range outdoor 200m – 4Km Long range outdoor 5Km – 20Km
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6: Wireless and Mobile Networks 6-8 Elements of a wireless network network  infrastructure  infrastructure mode base station connects mobiles  into wired network handoff: mobile changes base  station providing connection  into wired network
Background image of page 8
6: Wireless and Mobile Networks 6-9 Elements of a wireless network Ad hoc mode no base stations nodes can only transmit to  other nodes within link  coverage nodes organize themselves  into a network: route among  themselves
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 10
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 42

Ch6_handout - EEE459/591 Communication Networks Spring2007...

This preview shows document pages 1 - 10. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online