introduction
play

Introduction Paper presentation Ultra-Portable Devices Paper: - PowerPoint PPT Presentation

Mar 22, 2024 •177 likes •232 views

Introduction Paper presentation Ultra-Portable Devices Paper: Viterbi algorithm by analog components (Add-compare- select) C. Winstead, C. Schlegel. Analog Decoding: the State of the Art Fully parallel analog soft iterative

  1. Introduction Paper presentation – Ultra-Portable Devices Paper: • Viterbi algorithm by analog components (Add-compare- select) C. Winstead, C. Schlegel. Analog Decoding: the State of the Art • Fully parallel analog soft iterative decoders (sum-product algorithm) algorithm) ISSSTA 2004, Sydney, Australia, August 2004, pages 503- 511 • A variety of decoders can be implemented in analog: MAP, Turbo, LDPC, Block product Decoders Presented by: Reza Meraji 2009-11-09 Paper Presentation - Ultra Portable Devices 1 2009-11-09 Paper Presentation - Ultra Portable Devices 2 Modern Iterative decoders Translinear circuits • Soft information component decoders (working based on probabilities) • A translinear device: a device in which its current is an exponential function of the voltage between two of its terminals • Each component decoder computes extrinsic information • Decoder exchange this extrinsic information and decode again (information sharing) -Bipolar transistors • Decoder’s calculation tends to improve after each iteration -MOS devices biased in subthreshold region • The simple ”sum” and ”product” operations are all that is needed 2009-11-09 Paper Presentation - Ultra Portable Devices 3 2009-11-09 Paper Presentation - Ultra Portable Devices 4

  2. Translinear circuits Basic Computational Elements • Analog currents proportional to probabilities • Translinear circuits for analog multiplications • Shorting wires for summation Translinear circuits can be used for Sum and product operations are provided by translinear devices multiplication of currents Log-domain processing? => work with voltages 2009-11-09 Paper Presentation - Ultra Portable Devices 5 2009-11-09 Paper Presentation - Ultra Portable Devices 6 CMOS Analog Decoders CMOS Analog decoders • MOS transistors in weak inversion or subthreshold region • Suitable for SOC design: – Rejection of high frequency interferences • Current is typically less than 100 nA – Produces no high-frequency interference • The transistor is never ”turned on” -> leakage in digital design • Performance: • Performance: – Block length up to 256 coded bits • Consumed power in the transistor in the nano Watt range – Throughput up to 500 Mbit/s (1 Mbit/s for low voltage/power) • The transistor is slow => high throughput is obtained through • Extremely low energy operation parallelism 2009-11-09 Paper Presentation - Ultra Portable Devices 7 2009-11-09 Paper Presentation - Ultra Portable Devices 8

  3. Interfacing with a larger system Analog Decoder Interface • Serial to parallel conversion (S/H circuits) • Channel information expressed as a sequence of differential voltages (LLRs) • Parasitic effects – Clock feed-through (or charge injections) – Substrate leakage • Analog-Digital interface 2009-11-09 Paper Presentation - Ultra Portable Devices 9 2009-11-09 Paper Presentation - Ultra Portable Devices 10 Some Challenging Issues Some Challenging Issues Simulations • Mismatch and larger decoders (8,4) Hamming decoder, Importance sampling results for a Performance loss due to mismatch for regular LDPC simulated using importance sampling (16,11)^2 analog product decoder codes, based on Density Evolution 2009-11-09 Paper Presentation - Ultra Portable Devices 11 2009-11-09 Paper Presentation - Ultra Portable Devices 12

  4. Summary • Iterative algorithms for analog decoders • Translinear circuits as decoder building blocks • CMOS analog decoders • Interface architecture • Performance evaluation 2009-11-09 Paper Presentation - Ultra Portable Devices 13

Download Presentation
Download Policy: The content available on the website is offered to you 'AS IS' for your personal information and use only. It cannot be commercialized, licensed, or distributed on other websites without prior consent from the author. To download a presentation, simply click this link. If you encounter any difficulties during the download process, it's possible that the publisher has removed the file from their server.

Recommend

INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION

INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION

TRAINING COURSE ON SOCIAL PROTECTION & FORMALIZATION TRINIDAD AND TOBAGO MARCH 15, 2017 INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION Design of the NIS Assistance from the

547 views • 23 slides
INTRODUCTION Introduction 2/42 INTRODUCTION Alternations I am giving bread to the

INTRODUCTION Introduction 2/42 INTRODUCTION Alternations I am giving bread to the

Patterns of variation in the expression of case and agreement Andrs Brny Leiden University Centre for Linguistics 9 November 2019, BaSIS Workshop a.barany@hum.leidenuniv.nl INTRODUCTION Introduction 2/42 INTRODUCTION

1.37k views • 42 slides
Introduction Introduction Introduction Introduction Outline Motivation Failures

Introduction Introduction Introduction Introduction Outline Motivation Failures

Introduction Introduction Introduction Introduction Outline Motivation Failures Definition and concepts Process and product properties Principles SE Approaches Motivation Software and the economy The economies of

1.03k views • 49 slides
Introduction Introduction Introduction Nationwide Cause for Concern 1

Introduction Introduction Introduction Nationwide Cause for Concern 1

Introduction Introduction Introduction Nationwide Cause for Concern 1 https://www.cdc.gov/std/stats17/infographic.htm Introduction Epidemiology in Western Colorado CPHE Surveillance Data Report, May 2018 Chlamydia Epidemiology in Western

977 views • 39 slides
DAQ introduction Purpose of this talk : (1) Introduction for those who have not been in every

DAQ introduction Purpose of this talk : (1) Introduction for those who have not been in every

DAQ introduction Purpose of this talk : (1) Introduction for those who have not been in every meeting (2) Some ideas of diagrams for section 7.1 (Introduction) of TP. Giles Barr 25 Jan 2018, Pembroke College On DUNE, the reality is there is a

474 views • 10 slides
INTRODUCTION cf. Schneider, Chapter 1 INTRODUCTION THEY ARE OUT TO GET YOU INTRODUCTION WHAT

INTRODUCTION cf. Schneider, Chapter 1 INTRODUCTION THEY ARE OUT TO GET YOU INTRODUCTION WHAT

ADVANCED COMPUTER SECURITY INTRODUCTION cf. Schneider, Chapter 1 INTRODUCTION THEY ARE OUT TO GET YOU INTRODUCTION WHAT IS SECURITY? A systems security policies describe What the system is supposed to do Store and provide access

479 views • 16 slides
Overview Introduction to SMIL Introduction to W3C and XML Introduction to SMIL

Overview Introduction to SMIL Introduction to W3C and XML Introduction to SMIL

Overview Introduction to SMIL Introduction to W3C and XML Introduction to SMIL Writing a SMIL file Adding Media Objects Martin Halvey Clipping media files January 2008 Timing and Synchronising Layout World Wide

387 views • 14 slides
14 Introduction Introduction Bad guys can put malware into Example: hosts

14 Introduction Introduction Bad guys can put malware into Example: hosts

Introduction Introduction source Encapsulation ISO/OSI reference model message M application segment H t H t M transport network datagram H n H n H t M presentation: allow applications to frame link H l H n H t M interpret

583 views • 4 slides
Previous Lecture Introduction to SMIL 2 Introduction to W3C and XML Introduction to SMIL

Previous Lecture Introduction to SMIL 2 Introduction to W3C and XML Introduction to SMIL

Previous Lecture Introduction to SMIL 2 Introduction to W3C and XML Introduction to SMIL Writing a SMIL file Adding Media Objects Martin Halvey Clipping media files January 2008 Timing and Synchronising Layout

322 views • 8 slides
Lecture 1 Andreas Habegger Introduction Zynq Introduction Zynq Introduction Zynq PS vs. PL

Lecture 1 Andreas Habegger Introduction Zynq Introduction Zynq Introduction Zynq PS vs. PL

Introduction Zynq Lecture 1 Andreas Habegger Introduction Zynq Introduction Zynq Introduction Zynq PS vs. PL Processing System Processor Peripherals Data Buses AXI Bus Conclusion BTE5380 - Embedded Systems Octobre 2014 Andreas Habegger

1.81k views • 30 slides
2018.06 01 SMILE5 Introduction S E 5 02 Alpha Cloud M I L 03 Company Introduction 04

2018.06 01 SMILE5 Introduction S E 5 02 Alpha Cloud M I L 03 Company Introduction 04

2018.06 01 SMILE5 Introduction S E 5 02 Alpha Cloud M I L 03 Company Introduction 04 Project References S E 5 PART.1 SMILE5 Introduction M I L Introduction STORION-SMILE5 Residential Energy Storage System Inverter 5kW Output Input

1.06k views • 25 slides
Introduction to CICS Course introduction Course introduction What is CICS? What is an

Introduction to CICS Course introduction Course introduction What is CICS? What is an

Introduction to CICS Course introduction Course introduction What is CICS? What is an application server? Why use an application server? Course introduction Services provided by CICS How CICS applications are defined Scaling CICS to meet

1.84k views • 146 slides
Network Visualization Introduction Presented by Shahed Introduction Introduction Basic

Network Visualization Introduction Presented by Shahed Introduction Introduction Basic

Network Visualization Introduction Presented by Shahed Introduction Introduction Basic building blocks Node Links (relationship between nodes) Spatial information Network data

584 views • 9 slides
Introduction Introduction (1) Main argument of the paper: universities are not only

Introduction Introduction (1) Main argument of the paper: universities are not only

Le jugement des pairs comme outil de management des universits Peer-review as a management tool Christine Musselin (CSO, Sciences Po et CNRS) Avril 2013, Lirrsistible ascension du capitalisme acadmique Introduction Introduction (1)

590 views • 28 slides
Introduction Introduction to storage and to storage and filesystems filesystems Introduction

Introduction Introduction to storage and to storage and filesystems filesystems Introduction

Moreno Baricevic Gilberto Daz Axel Kohlmeyer Stefano Cozzini ULA ICTP CNR-IOM DEMOCRITOS Merida, VENEZUELA Trieste, ITALY Trieste, ITALY Introduction Introduction to storage and to storage and filesystems filesystems Introduction

1.19k views • 51 slides
JABLOTRON JA-100 introduction November 2011 Introduction Todays goals First introduction of

JABLOTRON JA-100 introduction November 2011 Introduction Todays goals First introduction of

JABLOTRON JA-100 introduction November 2011 Introduction Todays goals First introduction of the brand new JA-100 alarm system Visions Basic architecture System components Setting Help us with final validations You are the FIRST ones

1.69k views • 111 slides
Slides Product Selection Guide Slide V Series ES TS 1000 GS L LP S Ultra- Power &

Slides Product Selection Guide Slide V Series ES TS 1000 GS L LP S Ultra- Power &

Slides Product Selection Guide Slide V Series ES TS 1000 GS L LP S Ultra- Power & Line Switch Type Tiny Tiny Miniature Miniature Miniature Power miniature Voltage Poles 1 & 2 1 1 & 2 1 1 & 2 1 & 2 1

1.33k views • 116 slides
MAFS6010U Deep Learning Trading Course Project Instruction About us Professor YAO Yuan

MAFS6010U Deep Learning Trading Course Project Instruction About us Professor YAO Yuan

MAFS6010U Deep Learning Trading Course Project Instruction About us Professor YAO Yuan Teaching Assistants: Yifei Huang De Lavergne Cyril Wechat: cdldl24 About Data You are provided with historical minute-level OHLCV data of 4

268 views • 15 slides
How to Handle Globally Distributed QCOW2 Chains? Eyal Moscovici & Amit Abir Oracle-Ravello

How to Handle Globally Distributed QCOW2 Chains? Eyal Moscovici & Amit Abir Oracle-Ravello

How to Handle Globally Distributed QCOW2 Chains? Eyal Moscovici & Amit Abir Oracle-Ravello About Us Eyal Moscovici Amit Abir With Oracle Ravello With Oracle Ravello since 2015 since 2011 Software Engineer in Virtual

336 views • 32 slides
Compact Microstrip Antennas Prof. Girish Kumar Electrical Engineering Department, IIT Bombay

Compact Microstrip Antennas Prof. Girish Kumar Electrical Engineering Department, IIT Bombay

Compact Microstrip Antennas Prof. Girish Kumar Electrical Engineering Department, IIT Bombay gkumar@ee.iitb.ac.in (022) 2576 7436 Compact MSA Size of the MSA is large at lower frequencies. For RMSA, its effective length = /2. At 900

639 views • 20 slides
Certificate Repository Structure draft-huston-sidr-repos-struct-00.txt Basic Model 'named

Certificate Repository Structure draft-huston-sidr-repos-struct-00.txt Basic Model 'named

Certificate Repository Structure draft-huston-sidr-repos-struct-00.txt Basic Model 'named objects make other named objects' Natural parent-child relationship in process Follow the hierarchy Nodes (ie directories) and Objects

320 views • 16 slides
Toward A Metaphysics of Nilpotent Regions Lu Chen University of Massachusetts, Amherst SMS 2019

Toward A Metaphysics of Nilpotent Regions Lu Chen University of Massachusetts, Amherst SMS 2019

Toward A Metaphysics of Nilpotent Regions Lu Chen University of Massachusetts, Amherst SMS 2019 1 / 27 Highlights Goal : Give a realistic interpretation of Smooth Infinitesimal Analysis (SIA) as a theory of space with infinitesimal features.

297 views • 27 slides
Enterprise Platform for Solar and Storage Deployment ENACT Signed Launch with DEWA The Scope of

Enterprise Platform for Solar and Storage Deployment ENACT Signed Launch with DEWA The Scope of

Enterprise Platform for Solar and Storage Deployment ENACT Signed Launch with DEWA The Scope of the Project is to leverage a complete end-to-end software platform for the design, deployment, execution and asset management of

147 views • 3 slides
If this stuff is so great, then why isnt everybody doing it? Harry Foster Chief Verification

If this stuff is so great, then why isnt everybody doing it? Harry Foster Chief Verification

If this stuff is so great, then why isnt everybody doing it? Harry Foster Chief Verification Scientist Functional Verification Technique Adoption An Optimistic View of the Productivity Gap Lets assume Number of transistor doubles

249 views • 6 slides

More recommend