'Backoff interval' diaporamas de présentation

Special Topics on Wireless Ad-hoc Networks

Special Topics on Wireless Ad-hoc Networks. Lecture 7: Wireless MAC Protocols. University of Tehran Dept. of EE and Computer Engineering By: Dr. Nasser Yazdani. Covered topic. How to share wireless links? Media access issues References Chapter 3 of the book

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Chapter 3 MAC (Media Address Control) Layer

Chapter 3 MAC (Media Address Control) Layer. Chapter 3 Outline. 3.1. 802.11 ???????? 3.2. 802.11 MAC ?? 3.3. 802.11 ??????????? 3.4. 802.15.4 MAC 3.5. MAC protocols for WSN. Chapter 3 Outline. 3.1. 802.11 ???????? 3.2. 802.11 MAC ?? 3.3. 802.11 ???????????

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Chapter 3 MAC (Media Address Control) Layer

Chapter 3 MAC (Media Address Control) Layer. Chapter 3 Outline. 3.1. 802.11 ???????? 3.2. 802.11 MAC ?? 3.3. 802.11 ??????????? 3.4. 802.15.4 MAC 3.5. MAC protocols for WSN. Chapter 3 Outline. 3.1. 802.11 ???????? 3.2. 802.11 MAC ?? 3.3. 802.11 ???????????

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Medium Access Control Operation

Medium Access Control Operation. Outline. MAC sublayer and OSI MAC address mechanism Hidden node problem MAC Frame exchange protocol DCF (Distributed Coordination Function) PCF (Point Coordination Function) MAC Frame format. Medium Access Control. Medium Access Control.

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Lecture 4 Wireless Medium Access Control

Prof. Shamik Sengupta Office 4210 N ssengupta@jjay.cuny.edu http://jjcweb.jjay.cuny.edu/ssengupta/ Fall 2010. Lecture 4 Wireless Medium Access Control. Medium Access Control (MAC). Base Station. Forward link. Reverse link. Mobile Station. Mobile Station. Mobile Station.

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Medium Access Control in Wireless networks

Medium Access Control in Wireless networks. Wireless MAC classification. Wireless MAC. Centralized. Distributed. Polling. Guaranteed or controlled access. Random access. Aloha MACA(CSMA/CA) MACAW. Aloha. A node transmits a packet whenever a packet arrives.

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Unwanted Link Layer Traffic in Large IEEE 802.11 Wireless Network

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