Wireless Networks.

Slides:

Advertisements

Similar presentations

The Medium Access Control Sublayer

Advertisements

Internetworking Introduction How Networks Differ How Networks Can Be Connected Concatenated Virtual Circuits Connectionless Internetworking Tunneling Fragmentation.

McGraw-Hill©The McGraw-Hill Companies, Inc., 2004 Chapter 15 Wireless LANs.

CMPE 150 – Winter 2009 Lecture 8 January 29, 2009 P.E. Mantey.

The Protocol Stack Part of the protocol stack.

16 February 2003 TU/e Computer Science, System Architecture and Networking 1 Communication media Thanks to A. Tanenbaum.

TCP/IP Protocol Suite 1 Chapter 3 Objectives Upon completion you will be able to: Underlying Technology Understand the different versions of wired Ethernet.

1 Chapter 5 The Medium Access Sublayer. 2 Chapter 5 The Medium Access Layer 5.1 The Channel Allocation problem - Static and dynamic channel allocation.

The Medium Access Control Sublayer Chapter

The Medium Access Control Sublayer Chapter 4. The Channel Allocation Problem Static Channel Allocation in LANs and MANs Dynamic Channel Allocation in.

Network Security Wireless LAN. Network Security About WLAN  IEEE standard  Use wireless transmission medium such as radio, microwave, infrared.

Infrastructure de Communications – CR 4107Chapter 41 The Medium Access Control Sublayer Chapter 4.

Chapter 5 outline 5.1 Introduction and services

Lecture #2 Chapter 14 Wireless LANs.

Overview of Wireless LANs Use wireless transmission medium Issues of high prices, low data rates, occupational safety concerns, & licensing requirements.

1 Kyung Hee University Chapter 15 Wireless LANs. 2 Kyung Hee University IEEE 802 Standards Working Groups WiMAX, an acronym that stands for Worldwide.

Medium Access Control. Channel Allocation Static channel allocation in LANs and MANs FDMA, TDMA, CDMA Dynamic channel allocation in LANs and MANs MAC.

IEEE Project started by IEEE for setting standard for LAN. This project started in (1980, February), Name given to project is year and month.

WIRELESS LANs BLUETOOTH.

Bluetooth Background Ericsson, IBM, Intel, Nokia, and Toshiba

Computer Networks NYUS FCSIT Spring 2008 Igor TRAJKOVSKI, Ph.D. Associate Professor

CSMA with Collision Detection CSMA/CD can be in one of three states: contention, transmission, or idle.

The Medium Access Control Sublayer Chapter 4. The Channel Allocation Problem Static Channel Allocation in LANs and MANs Dynamic Channel Allocation in.

The Medium Access Control Sublayer طبقة ولوج الوسط الجزئية Chapter 4.

The Medium Access Control Sublayer Chapter 4 10/1/2015www.noteshit.com1.

14.1 Chapter 14 Wireless LANs Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

1 CIS 6930: Review on Network Technology Jonathan C.L. Liu, Ph.D. Department of Computer, Information Science and Engineering (CISE), University of Florida.

10/18/2007 EETS Bluetooth Bluetooth Architecture Bluetooth Applications The Bluetooth Protocol Stack The Bluetooth Radio Layer The Bluetooth Baseband.

K. Salah 1 Chapter 15 Wireless LANs. K. Salah 2 Figure 15.1 BSSs IEEE Specification for Wireless LAN: IEEE , which covers the physical and data.

The Medium Access Control Sublayer Chapter 4. The Channel Allocation Problem Static Channel Allocation Dynamic Channel Allocation  Delay for the divided.

McGraw-Hill©The McGraw-Hill Companies, Inc., 2004 Chapter 15 Wireless LANs.

Open Systems Interconnection Model (OSI model). The Open Systems Interconnect Model.

Computer Networks, Fifth Edition by Andrew Tanenbaum and David Wetherall, © Pearson Education-Prentice Hall, 2011 The Medium Access Control Sublayer Chapter.

The Medium Access Control Sublayer Chapter 4. The Channel Allocation Problem Static Channel Allocation in LANs and MANs Dynamic Channel Allocation in.

The Medium Access Control Sublayer Chapter 4. The Channel Allocation Problem Static Channel Allocation in LANs and MANs Dynamic Channel Allocation in.

CEN 4500 Data Communications Instructor: S. Masoud Sadjadi sadjadi At cs Dot fiu Dot edu Chapter 4: The Medium.

10/11/2007 EETS The Medium Access Control Sublayer Chapter 4.

Ch 14. Wireless LANs IEEE Specification for a wireless LAN – Cover physical and data link layers Basic service sets (BSS) and extended service.

The Medium Access Control Sublayer Chapter 4 12/13/2015www.ishuchita.com1.

1 Quick Review on Data Link Layer – Part 2 Jonathan C.L. Liu, Ph.D. Department of Computer, Information Science and Engineering (CISE), University of Florida.

Chapter 13 Wired LANs: Ethernet

1 Quick Review on Data Link Layer – Part 2 Jonathan C.L. Liu, Ph.D. Department of Computer, Information Science and Engineering (CISE), University of Florida.

The Medium Access Control Sublayer Chapter 4. The Channel Allocation Problem Static Channel Allocation in LANs and MANs Dynamic Channel Allocation in.

1 Chapter 4 MAC Layer – Wireless LAN Jonathan C.L. Liu, Ph.D. Department of Computer, Information Science and Engineering (CISE), University of Florida.

.  Hubs send data from one computer to all other computers on the network. They are low-cost and low-function and typically operate at Layer 1 of the.

Price range varies from $17.99 to $34.99 or more. Device 1 Device 2 Network Connection.

Services Distribution Services (for APs) – Association – mobile stations connect themselves to base stations – Reassociation – a station may change.

The Medium Access Control Sublayer

The Medium Access Control (MAC) Sublayer. The Channel Allocation Problem Static Channel Allocation in LANs and MANs Dynamic Channel Allocation in LANs.

Wireless LAN Protocols This talk is based on the course: CPSC Networks and Distributed Processing Spring2006/

Wireless LAN Protocols This talk is based on the course: CPSC Networks and Distributed Processing Spring2006/

SSN College of Engineering

Chapter 15 Wireless LANs.

The Data Link Layer Chapter

The Medium Access Control Sublayer

Underlying Technology

Computer Networks Chapter 3 & 4

Bluetooth, RFID, Data Link Layer Switching

Wireless NETWORKS NET 434 Topic No 7 Bluetooth-IEEE802.15

The Medium Access Control Sublayer

Wireless NETWORKS NET 434 Topic No 7 Bluetooth-IEEE802.15

The Medium Access Control Sublayer

Wireless NETWORKS NET 434 Topic No 7 Bluetooth-IEEE802.15

Chapter 14 Wireless LANs Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

The Medium Access Control (MAC) Sublayer

Chapter 15 Wireless LANs.

Wireless LAN (WLAN) Wireless Ethernet Bluetooth.

Bluetooth- L2CAP & Baseband Layer

Bluetooth Bluetooth is a wireless LAN technology designed to connect devices of different functions when they are at a short distance from each other A.

Presentation transcript:

Wireless Networks

Wireless LANs The 802.11 Protocol Stack The 802.11 Physical Layer The 802.11 MAC Sublayer Protocol The 802.11 Frame Structure Services

Part of the 802.11 protocol stack.

The 802.11 MAC Sublayer Protocol (a) The hidden station problem. (b) The exposed station problem.

The 802.11 MAC Sublayer Protocol (2) The use of virtual channel sensing using CSMA/CA.

The 802.11 MAC Sublayer Protocol (3) A fragment burst.

The 802.11 MAC Sublayer Protocol (4) Interframe spacing in 802.11.

The 802.11 Frame Structure The 802.11 data frame.

802.11 Services Distribution Services Association Disassociation Reassociation Distribution Integration

802.11 Services Intracell Services Authentication Deauthentication Privacy Data Delivery

Broadband Wireless Comparison of 802.11 and 802.16 The 802.16 Protocol Stack The 802.16 Physical Layer The 802.16 MAC Sublayer Protocol The 802.16 Frame Structure

The 802.16 Protocol Stack The 802.16 Protocol Stack.

The 802.16 transmission environment. The 802.16 Physical Layer The 802.16 transmission environment.

Frames and time slots for time division duplexing. The 802.16 Physical Layer (2) Frames and time slots for time division duplexing.

The 802.16 MAC Sublayer Protocol Service Classes Constant bit rate service Real-time variable bit rate service Non-real-time variable bit rate service Best efforts service

(a) A generic frame. (b) A bandwidth request frame. The 802.16 Frame Structure (a) A generic frame. (b) A bandwidth request frame.

Bluetooth Bluetooth Architecture Bluetooth Applications The Bluetooth Protocol Stack The Bluetooth Radio Layer The Bluetooth Baseband Layer The Bluetooth L2CAP Layer The Bluetooth Frame Structure

Bluetooth Architecture Two piconets can be connected to form a scatternet.

Bluetooth Applications The Bluetooth profiles.

The Bluetooth Protocol Stack The 802.15 version of the Bluetooth protocol architecture.

The Bluetooth Frame Structure A typical Bluetooth data frame.

Repeaters, Hubs, Bridges, Switches, Routers and Gateways (a) Which device is in which layer. (b) Frames, packets, and headers.

Repeaters, Hubs, Bridges, Switches, Routers and Gateways (2) (a) A hub. (b) A bridge. (c) a switch.

Channel allocation methods and systems for a common channel. Summary Channel allocation methods and systems for a common channel.