'Mac frames' presentation slideshows

Guide to Network Defense and Countermeasures Third Edition

Guide to Network Defense and Countermeasures Third Edition. Chapter 7 Understanding Wireless Security. Security Concerns of Wireless Networking. In this section you will learn: How the Media Access Control (MAC) sublayer of the Data Link layer can create vulnerabilities

730 views • 56 slides

802.15.4

802.15.4. Samer Shammaa Telecommunications Eng. Dept. Dr. Pramode Verma. Outline. Introduction WSN Applications Topologies Architecture Physical Layer MAC Layer Superframe structure. Introduction. Until recently, the main concern in wireless communication was on high throughput

855 views • 53 slides

Wild Card : Metropolitan Area Networks

626 views • 49 slides

QoS in IEEE 802.11 Networks

QoS in IEEE 802.11 Networks. Resources. Introduction. IEEE 802.11. Simple, Effective Designed for Best Effort Service Real Time Services: Throughput and Delay Sensitive End-to-End QoS Guarantees, IEEE 802.11e. IEEE 802.11 Architecture. ESS. Existing Wired LAN. AP. AP. STA. STA. STA.

592 views • 33 slides

Existing MACs for Wireless nets

Note: in last class I said that the noise floor in 802.11b was -110 dBm) That was wrong, it was 100 dBm. Thermal = 173 dBm/Hz Bandwidth = 10log10(20e6) = 10log10(2) + 10log10(1e7) = 73 dB Giving 100 dBm. Existing MACs for Wireless nets. Basic 802.11 media access control - 802.11 DCF.

374 views • 30 slides

Cog-Fi: A Cognitive Wi-Fi Channel Hopping Architecture for Urban MANETs

Cog-Fi: A Cognitive Wi-Fi Channel Hopping Architecture for Urban MANETs. Sung Chul Choi and Mario Gerla WONS 2012 Presentation. Motivation. Motivation. Network Model. Mobile node. Fixed Interfering source. Network Model. Network node. 8. ch. Interfering source. 3. 5. 1. 4.

407 views • 30 slides

Performance Evaluation Study for HiperLan WLAN Protocol

Performance Evaluation Study for HiperLan WLAN Protocol. Omar A. Elprince Student#220510. Agenda. What is HIPERLAN? Origin of HIPERLAN HIPERLAN MAC Mechanism HIPERLAN Family Features of HiperLAN/2 MAC Frame Structure Transport Channels The Channel Access Mechanism

369 views • 24 slides

Chapter 11: Wireless LANs

Chapter 11: Wireless LANs. Business Data Communications, 6e. Wireless LAN Applications. LAN extension Cross-building interconnect Nomadic access Ad hoc networks. LAN extension. Originally targeted to reduce cost of wiring, but new buildings now have sufficient wiring in place

415 views • 21 slides

MAC Address Hijacking Problem

184 views • 8 slides