'Slotted aloha' presentation slideshows

Chapter 5: The Data Link Layer

Our goals: understand principles behind data link layer services: error detection, correction sharing a broadcast channel: multiple access link layer addressing reliable data transfer, flow control: done! instantiation and implementation of various link layer technologies.

1.2k views • 105 slides

Chapter 5: Link layer

our goals: understand principles behind link layer services: error detection, correction shared channel access link layer addressing local area networks: Ethernet, VLANs instantiation, implementation of various link layer technologies. Chapter 5: Link layer. 5.1 introduction, services

1.06k views • 86 slides

Mobile Networks Module A (Part A2) Introduction Prof. JP Hubaux mobnet.epfl.ch

Mobile Networks Module A (Part A2) Introduction Prof. JP Hubaux http://mobnet.epfl.ch. Modulation and demodulation (reminder). analog baseband signal. digital data. digital modulation. analog modulation. radio transmitter. 101101001. radio carrier. analog baseband signal.

837 views • 71 slides

Decentralized Power Control for Random Access with Multi-User Detection

Decentralized Power Control for Random Access with Multi-User Detection. Chongbin Xu, Peng Wang, Sammy Chan, and Li Ping. Department of Electronic Engineering City University of Hong Kong December 27, 2012. Reference:

644 views • 56 slides

Medium Access Control

Medium Access Control. Zhibin Wu. Lecture Overview. Introduction Random Access Aloha Slotted Aloha CSMA CSMA/CD CSMA/CA Scheduled Access TDMA Dynamic TDMA Spread-Spectrum/CDMA. Medium Access Sublayer. network. Medium access (MAC) sublayer is not relevant on point-to-point links

747 views • 45 slides

Time Synchronized Meshing K. Pister Prof. EECS, UC Berkeley Founder & CTO, Dust Networks

Time Synchronized Meshing K. Pister Prof. EECS, UC Berkeley Founder & CTO, Dust Networks.

516 views • 45 slides

Lecture 3

Lecture 3. Medium Access Control. Introduction. What is medium access? Who gets to transmit? How? When? Multiplexing How many stations can share a single link FDMA, TDMA, CDMA in circuit switched voice networks CSMA/CD in Ethernet (simplicity) Duplexing

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600 views • 35 slides

Chapter 5: The Data Link Layer

Our goals: understand principles behind data link layer services: error detection, correction sharing a broadcast channel: multiple access link layer addressing reliable data transfer, flow control: done! instantiation and implementation of various link layer technologies.

646 views • 32 slides

Chapter 5: The Data Link Layer

Our goals: understand principles behind data link layer services: error detection, correction sharing a broadcast channel: multiple access link layer addressing reliable data transfer, flow control: done! instantiation and implementation of various link layer technologies. Overview:

421 views • 31 slides

A framework for fast RFID tag reading in static and mobile environments ?? RFID ???????????

A framework for fast RFID tag reading in static and mobile environments ?? RFID ???????????. ??

451 views • 29 slides

Mobile Communications Chapter 3 : Media Access

Mobile Communications Chapter 3 : Media Access. Motivation SDMA, FDMA, TDMA Aloha Reservation schemes. Collision avoidance, MACA Polling CDMA SAMA Comparison. Motivation. Can we apply media access methods from fixed networks? Example CSMA/CD

462 views • 29 slides

Mobile Communications Media Access Chapter 3

Mobile Communications Media Access Chapter 3. Motivation SDMA, FDMA, TDMA Aloha Reservation schemes. Collision avoidance, MACA Polling CDMA SAMA Comparison. 3.0.1. Motivation. Can we apply media access methods from fixed networks? Example CSMA/CD

394 views • 26 slides

MAC layer

MAC layer. Taekyoung Kwon. Media access in wireless - start with IEEE 802.11. In wired link, C arrier S ense M ultiple A ccess with C ollision D etection send as soon as the medium is free, listen into the medium if a collision occurs (original method in IEEE 802.3) In wireless

488 views • 23 slides

QoS Guaranteed Provisioning over GPRS Wireless Mobile Links

QoS Guaranteed Provisioning over GPRS Wireless Mobile Links. Benjamin ESHUN MSc CCN INT France. Content. What is GPRS ? What is QoS? Characteristics of proposed protocols . Conclusion . Questions ?. GPRS- General Packet Radio Service.

410 views • 23 slides

PERFORMANCE EVALUATION OF MEDIUM ACCESS CONTROL FOR MULTIPLE-BEAM ANTENNA NODES IN A WIRELESS LAN

PERFORMANCE EVALUATION OF MEDIUM ACCESS CONTROL FOR MULTIPLE-BEAM ANTENNA NODES IN A WIRELESS LAN. Dhananjay Lal Vivek Jain. OUTLINE. Introduction Collision Probability per Beam Analytical Modeling for Basic CSMA and Slotted Aloha Performance Evaluation Expanded Receive Rule (ERR)

345 views • 22 slides

DOA-ALOHA: Slotted ALOHA for Ad Hoc Networking Using Smart Antennas

DOA-ALOHA: Slotted ALOHA for Ad Hoc Networking Using Smart Antennas. Harkirat Singh & Suresh Singh Portland State University, OR, USA. Outline. What is an ad hoc network Smart Antenna Overview Protocol description Implementation of the protocol within OPNET

376 views • 21 slides

Simulation of Multiple Access Protocols

Simulation of Multiple Access Protocols. Presented by: Group 2. Multiple Access Protocols. The following Multiple Access Protocols are considered: Pure ALOHA Slotted ALOHA Nonpersistent Carrier Sense Multiple (CSMA) Slotted nonpersistent Inhibit Sense Multiple ( np -ISMA).

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Random Access protocols

687 views • 15 slides

Slide 1

IEEE 802.15-13-0172-00-0led. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Amendment Issues of IEEE 802.15.7 Specification for LBS-based LED-ID] Date Submitted: [March , 2013 ]

309 views • 11 slides