'Carrier sensing' diaporamas de présentation

EE4L Computer & Communication Networks

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Cellular Networks and Mobile Computing COMS 6998-10, Spring 2013

Cellular Networks and Mobile Computing COMS 6998-10, Spring 2013. Instructor: Li Erran Li ( lierranli@cs.columbia.edu ) http://www.cs.columbia.edu/ ~lierranli/coms6998-10Spring2013/ 3 / 5 /2013: Radio Resource U sage P rofiling and Optimization. Announcements. Course evaluation due!

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Wireless Medium Access Control Romit Roy Choudhury Wireless Networking Lectures Duke University

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Wireless Medium Access Control Romit Roy Choudhury Wireless Networking Lectures Duke University

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Poisson Random Process

Poisson Random Process. Mean and Variance Results. Exponential:. You have to memorize these! You should be able to derive any of the above. Poisson:. Geometric:. Binomial:. CMPE 252A: Computer Networks SET 3:. Medium Access Control Protocols. APPLICATION. logical link control.

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Network Support for Multimedia Applications in Mobile Networks

Network Support for Multimedia Applications in Mobile Networks. Major Area Exam Kimaya Sanzgiri MOMENT Lab Computer Science Dept., UCSB. Motivation. Growing popularity of multimedia applications Streaming music/videos Internet telephony Media-rich messaging

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Wireless Technologies

Wireless Technologies. Asim Loan March 28, 2002. Outline. Bluetooth Wireless Personal Area Network (WPAN) IEEE 802.11a/b/g Wireless Local Area Network (WLAN) Frame Format Range versus Throughput Multi-channel Multipoint Distribution System (MMDS)

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Evaluation of Intersection Collision Warning System Using an Inter-vehicle Communication Simulator

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Chapter 6: MAC Protocols for Ad-Hoc Wireless Networks

Introduction Issues Design Goals Classifications Contention-based Protocols. Contention-based Protocols with reservation mechanisms Contention-based Protocols without Scheduling mechanisms MAC Protocols that use directional antennas Other MAC Protocols.

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Bin-MAC: A Hybrid MAC for Ultra-Compact Wireless Sensor Nodes

Bin-MAC: A Hybrid MAC for Ultra-Compact Wireless Sensor Nodes. Vahid Salmani and Pai H. Chou Center for Embedded Computer Systems Department of Electrical Engineering and Computer Science University of California, Irvine May 17, 2012. Outline. Problem Statement Bin-MAC Design

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Differentiated Initial Link Setup

Differentiated Initial Link Setup. Date: 05/02/2012. Authors:.

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MAC Protocols and Security in Ad hoc and Sensor Networks

MAC Protocols and Security in Ad hoc and Sensor Networks. A Power Control MAC (PCM) Protocol for Ad hoc Networks [Jung+ 2002]. A power control MAC protocol allows nodes to vary transmit power level on a per-packet basis

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Robcast: A singlehop reliable broadcast protocol for WSNs

Robcast: A singlehop reliable broadcast protocol for WSNs. Murat Demirbas Srivats Balachandran University at Buffalo, SUNY. Singlehop reliable (?) broadcast. Reliable broadcast is important

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MAC Protocols and Security in Ad hoc and Sensor Networks

MAC Protocols and Security in Ad hoc and Sensor Networks. A Power Control MAC (PCM) Protocol for Ad hoc Networks [Jung+ 2002]. A power control MAC protocol allows nodes to vary transmit power level on a per-packet basis

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Mid Term Review

Mid Term Review. Mid Term. Tue, April 1 Open Book Open papers Open laptop In class exam Duration 1hour 15 minutes Exam level Not too easy, not too hard 20% of total grade. Syllabus. Topic covered till March 27 (inclusive) Basic Networking

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Lecture 4: IEEE 802.11

Lecture 4: IEEE 802.11 . ECE 591. IEEE 802.11 Requirements. Wi-Fi often used by the public as a synonym for IEEE 802.11-wireless LAN (WLAN). Design for small coverage (e.g. office, home) Low/no mobility High data-rate applications

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Ad hoc TCP: achieving fairness with Active Neighbor Estimation

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TCP and MAC interplay in Wireless Ad Hoc Networks

TCP and MAC interplay in Wireless Ad Hoc Networks. K. Tang and M. Gerla, " Fair Sharing of MAC under TCP in Wireless Ad Hoc Networks ," In Proceedings of IEEE MMT'99, Venice, Italy, Oct. 1999. Outline. Overview of CSMA, FAMA and IEEE 802.11. MAC performance with TCP.

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Group Addressed MSDUs in 802.11ac

Group Addressed MSDUs in 802.11ac. Authors:. Date: 2011-07-12. Abstract. The presentation provides means to improve the group addressed MSDUs transmission efficiency, and to reduce power consumption of the STAs.

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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: Comments on IEEE 802.15.8 PAC Technical Guidance Document Date Submitted: 21 January, 2014 Source: Byung -Jae Kwak , Kapseok Chang, Moon- Sik Lee ETRI, Korea

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