'Automatic repeat request' presentation slideshows

877 views • 69 slides

Advances in Wireless Networks: IEEE 802.16(WiMAX)

Advances in Wireless Networks: IEEE 802.16(WiMAX). Vinh Do Comp 529 California State University of Northridge. Outline. Background IEEE 802.15: PAN IEEE 802.11: Wireless LANs 802.11 last-mile network Mesh network IEEE 802.16 -Standards -Physical layer -MAC layer

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CS162 Operating Systems and Systems Programming Lecture 22 Networking III

CS162 Operating Systems and Systems Programming Lecture 22 Networking III. April 22, 2010 Ion Stoica http://inst.eecs.berkeley.edu/~cs162. Review. Link (datalink) layer: Broadcast network; frames sent by one host reaches every other host in same network Multi-access protocol

621 views • 45 slides

Chapter 11

Chapter 11. Data Link Control and Protocols. 11.1 Flow and Error Control. Flow Control. Error Control. Note :. Flow control refers to a set of procedures used to restrict the amount of data that the sender can send before waiting for acknowledgment. Note :.

1.01k views • 43 slides

Chapter 11

Chapter 11. Data Link Control and Protocols. 11.1 Flow and Error Control. Flow Control. Error Control. Note :. Flow control refers to a set of procedures used to restrict the amount of data that the sender can send before waiting for acknowledgment. Note :.

588 views • 41 slides

Lect11.ppt - 03/15/05

CDA 6505 Network Architecture and Client/Server Computing. Lecture 11 Link-Level Flow and Error Control by Zornitza Genova Prodanoff. Lect11.ppt - 03/15/05. Introduction. The need for flow and error control Link control mechanisms Performance of ARQ (Automatic Repeat Request). ZGP00 2.

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Wireless Sensor Networks

587 views • 37 slides

The Data Link Layer

The Data Link Layer. Chapter 3. Data Link Layer Design Issues. Services Provided to the Network Layer Framing Error Control Flow Control. Functions of the Data Link Layer. Provide service interface to the network layer Dealing with transmission errors Regulating data flow

617 views • 35 slides

Data Link Layer What does it do?

Data Link Layer What does it do?. What functions it performs? Typically: Handling transmission errors. Error control. Flow control. Framing. Framing. The DDL and PHY. The Physical Layer delivers raw sequence of bits. Unreliable service.

729 views • 35 slides

Multipath TCP under MASSIVE Packet Reordering

DCSwitch. Multipath TCP under MASSIVE Packet Reordering. Nathan Farrington June 8, 2009. Data Center Networks Do Not Scale. ECMP Limited to 8 or 16 Root Switches.

521 views • 34 slides

ECED 4504 Digital Transmission Theory

ECED 4504 Digital Transmission Theory. Course Overview, Basic Characteristics of Block Codes. Topics today. Block codes repetition codes parity codes Hamming codes cyclic codes Forward error correction (FEC) system error rate in AWGN Encoding and decoding Codes characterization

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Network Operations & administration CS 4592 Lecture 15

Network Operations & administration CS 4592 Lecture 15. Instructor: Ibrahim Tariq. Data Link Layer. Protocols (Contd.). Flow diagram for simplest (NOISLESS). Noisy Channels. We discuss three protocols in this section that use error control. Stop & Wait Automatic Repeat Request

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Data and Computer Communications

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cs / ee 143 Communication Networks Chapter 7 Transport

cs / ee 143 Communication Networks Chapter 7 Transport. Text: Walrand & Parakh , 2010 Steven Low CMS, EE, Caltech. Transport services. UDP Datagram service No congestion control No error/loss recovery Lightweight. TCP Connection oriented service Congestion control

377 views • 30 slides

Computer Networks

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William Stallings Data and Computer Communications 7 th Edition

William Stallings Data and Computer Communications 7 th Edition. Chapter 7 Data Link Control Protocols. Flow Control. Ensuring the sending entity does not overwhelm the receiving entity Preventing buffer overflow Transmission time Time taken to emit all bits into medium Propagation time

333 views • 26 slides

Flow and Error Control

Flow and Error Control. Sanchita Mal- Sarkar Ref: Data Communications and Networking by Behrouz A. Forouzan McGraw-Hill. Flow Control. Flow control coordinates the amount of data that can be sent before receiving acknowledgement

920 views • 23 slides

Communication Networks

Communication Networks. Recitation 8 ARQ Protocols & Performance. Error Control. Automatic Repeat Request (ARQ) Error detection Acknowledgement (ACK) Retransmission after timeout Negative acknowledgement (NACK). t tran. DATA. t prop. ACK. DATA. RTT. NACK. Pipelining.

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Improving TCP over Wireless by Selectively Protecting Packet Transmissions

Improving TCP over Wireless by Selectively Protecting Packet Transmissions. Carla F. Chiasserini Michele Garetto Michela Meo Dipartimento di Elettronica Politecnico di Torino, Italy. Presentation outline. Introduction to the problem Solutions proposed in the literature Our approach

252 views • 17 slides

Data transmission

Data transmission. Error correction. Stop and wait error ARQ Continuous ARQ (Automatic Repeat reQuest). Protocols (p. 147). Asynchronous transmission FTPs Xmodem, ymodem, zmodem and kermit Synchronous Protocols SDLC, HDLC, Token ring Ethernet SLIP, PPP. Asynchronous transmission.

162 views • 5 slides