'Interframe space' diaporamas de présentation

Chapter 13 Controller Area Network

Chapter 13 Controller Area Network. History of CAN (Controller Area Network). It was created in mid-1980s for automotive applications by Robert Bosch. Design goal was to make automobiles more reliable, safer, and more fuel efficient.

2.46k views • 116 slides

Chapter 13 Controller Area Network

Chapter 13 Controller Area Network. History of CAN (Controller Area Network). It was created in mid-1980s for automotive applications by Robert Bosch. Design goal was to make automobiles more reliable, safer, and more fuel efficient.

1.19k views • 116 slides

918 views • 77 slides

QoS Improvements of VoIP in WiFi Networks

QoS Improvements of VoIP in WiFi Networks. Undergraduate Students: Chris Higgins, Linda Tran Ph.D. Student Advisor: Ala Khalifeh Faculty Advisors: Prof. Kevin Tsai, Prof. Henry Lee. Summary. Introduction: VoIP/VoWLAN, 802.11, 802.11e

804 views • 64 slides

Adaptive Packet Reservation Protocols

Adaptive Packet Reservation Protocols. ??? ?? ???????? ???. O UTLINE. An Overview of IEEE 802.11 Legacy 802.11 ? DCF ( Distributed coordination function ) PCF ( Point coordination function ) QoS S upport M echanisms of 802.11e ? EDCF ( Enhanced DCF ) HCF controlled channel access.

707 views • 61 slides

Wireless Communication and Networks

Wireless Communication and Networks. Applications of Wireless Communication. Wireless Communication Technologies. Wireless Networking and Mobile IP. Wireless Local Area Networks. Student Presentations and Research Papers. Wireless Medium Access.

425 views • 42 slides

802.11: Performance

480 views • 33 slides

Chapter 8- 802.11 Medium Access

Chapter 8- 802.11 Medium Access. CSMA/CA vs CSMA/CD DCF PCF HCF BA WMM. Exam Essentials. Understand the similarities and differences between CSMA/CA and CSMA/CD. Understand both access methods and know what makes them similar and what makes them different.

737 views • 33 slides

Chapter 8- 802.11 Medium Access

Chapter 8- 802.11 Medium Access. CSMA/CA vs CSMA/CD DCF PCF HCF BA WMM. Exam Essentials. Understand the similarities and differences between CSMA/CA and CSMA/CD. Understand both access methods and know what makes them similar and what makes them different.

535 views • 33 slides

Chapter 8- 802.11 Medium Access

Chapter 8- 802.11 Medium Access. CSMA/CA vs CSMA/CD DCF PCF HCF BA WMM. Exam Essentials. Understand the similarities and differences between CSMA/CA and CSMA/CD. Understand both access methods and know what makes them similar and what makes them different.

375 views • 33 slides

MAC Layer

MAC Layer. Coordinate access to a shared medium Requirements Efficiency Reliability Fairness Support priority Support group communication. MAC Layer (Cont.). Base technologies Frequency division multiple access (FDMA) Time division multiple access (TDMA)

435 views • 30 slides

Faculty of Computer Science & Engineering

Faculty of Computer Science & Engineering. Chapter 05. MAC and Physical Layers. Question 1. 1. Which of the following service sets can use distributed coordination function (DCF) mode? Choose all that apply. A. BSS B. IBSS C. ESS D. IESS. Question 2.

323 views • 21 slides

Chapter 18

High Throughput (HT) and 802.11n. Chapter 18. Outline. 802.11n History MIMO HT Channels HT PHY HT MAC. 802.11n History. The main objective of the 802.11n draft amendment is to increase the data rates and the throughput in both the 2.4GHz and 5GHz frequency bands

321 views • 16 slides

EEE521

EEE521. Computer and Data Communications Semester 2 2011-2012 Mohd Nazri Mahmud Session 4a-12 March 2012. Lesson plan. Reflection on Lab session 1: Local Area Networks Discussion on CSMA/CA and Wireless LAN Preparatory readings:

257 views • 14 slides

Prioritized PS-Polls

Prioritized PS-Polls. Authors:. Date: 2012-5-16. Abstract. This contribution suggests allowing STAs to transmit PS-Polls at different priority levels. This is achieved by having a TIM encoding that conveys different STA groups and assigning channel-access priority to each group

299 views • 12 slides

Slide 1

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Resolution to comment #] Date Submitted: [May-10-2009] Source: [Vered Bar] Company: [Qualcomm] Address: [ QUALCOMM, Incorporated, 5775 Morehouse Drive, San Diego, CA 92121]

148 views • 6 slides