'Subcarrier' diaporamas de présentation

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: Spectra and bandwidth overhead with and without filtering for TG4m OFDM Date Submitted: July 15, 2012 Source: Soo -Young Chang (CSUS) and Cristina Seibert (Silver Spring Networks)

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Contents

Contents. Physical layer for IEEE 802.11b Channel allocation Modulation and coding PHY layer frame structure Physical layer for IEEE 802.11a/g Channel allocation Modulation and coding OFDM basics PHY layer frame structure . Physical layer (PHY).

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PHY/MAC cross-layer Issues in mobile WiMAX

PHY/MAC cross-layer Issues in mobile WiMAX. Advisor: Dr. Kai-Wei Ke Speaker: Chao-Sung yah Date:04/16/2007. Outline. Introduction PHY layer in OFDMA/TDD mobile WIMAX MAC layer in OFDMA/TDD mobile WIMAX PHY/ MAC cross-layer issues in mobile WiMAX Conclusions Reference. Introduction(1/4).

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Virtually Imaged Phased Array (VIPA): Operation and Applications

Virtually Imaged Phased Array (VIPA): Operation and Applications. Christopher Lin Avanex Corporation. Outline. Background Brief history Virtually imaged phased array (VIPA) Paraxial wave model Applications DWDM multiplexer/demultiplexer Hyper-fine WDM Chromatic dispersion compensator

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Introduction to OFDM and the IEEE 802.11a Standard

Introduction to OFDM and the IEEE 802.11a Standard. Motivation. High bit-rate wireless applications in a multipath radio environment. OFDM can enable such applications without a high complexity receiver. OFDM is part of WLAN, DVB, and BWA standards

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Synchronization for OFDMA System

Synchronization for OFDMA System. Student: ??? Advisor: Prof. D. W. Lin Time: 2006/3/16. Outline. Reference Introduction to IEEE 802.16-2004 WirelessMan_OFDMA PHY Synchronization Downlink synchronization Uplink synchronization . Reference.

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Introduction to OFDM and the IEEE 802.11a Standard

Introduction to OFDM and the IEEE 802.11a Standard. Motivation. High bit-rate wireless applications in a multipath radio environment. OFDM can enable such applications without a high complexity receiver. OFDM is part of WLAN, DVB, and BWA standards

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IEEE 802.11 Wireless LAN Standard

IEEE 802.11 Wireless LAN Standard. Chapter 14. IEEE 802 Protocol Layers. Protocol Architecture. Functions of physical layer: Encoding/decoding of signals Preamble generation/removal (for synchronization) Bit transmission/reception Includes specification of the transmission medium.

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Report to 40 Meter TAC

Report to 40 Meter TAC. Alan Weinstein, Caltech. Caltech 40 Meter Prototype Objectives and scope Trade-offs and compromises Recent progress in infrastructure, procurement, modeling plans and milestones Conceptual design review: October 18, 2001, 8:30 AM PDT. People.

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Signal Processing for OFDM Communication Systems

Signal Processing for OFDM Communication Systems. Eric Jacobsen Minister of Algorithms, Intel Labs Communication Technology Laboratory/ Radio Communications Laboratory July 29, 2004. With a lot of material from Rich Nicholls, CTL/RCL and Kurt Sundstrom, of unknown whereabouts. Outline.

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IE 419/519 Wireless Networks

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The Basic Principles of OFDM

The Basic Principles of OFDM . Gwo-Ruey Lee. Outlines. The Basic Principles of OFDM [1-7] FFT-based OFDM System Serial and Parallel Concepts [1,7] Modulation/Mapping [10,11] M -ary Phase Shift Keying M -ary Quadrature Amplitude Modulation IFFT and FFT [8,9]

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The Basic Principles of OFDM

The Basic Principles of OFDM. Gwo-Ruey Lee. Outlines. The Basic Principles of OFDM [1-7] FFT-based OFDM System Serial and Parallel Concepts [1,7] Modulation/Mapping [10,11] M -ary Phase Shift Keying M -ary Quadrature Amplitude Modulation IFFT and FFT [8,9]

1.43k views • 30 slides

QoS Aware Adaptive Subcarrier Allocation in OFDMA Systems

QoS Aware Adaptive Subcarrier Allocation in OFDMA Systems. Mustafa Ergen & Sinem Coleri {ergen,csinem}@eecs.berkeley.edu University of California Berkeley. Introduction. Motivation Orthogonal Frequency Division Multiple Access(OFDMA) OFDMA System Resource Allocation Problem Algorithms

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QoS Aware Adaptive Subcarrier Allocation in OFDMA Systems

QoS Aware Adaptive Subcarrier Allocation in OFDMA Systems. Mustafa Ergen & Sinem Coleri {ergen,csinem}@eecs.berkeley.edu University of California Berkeley. Introduction. Motivation Orthogonal Frequency Division Multiple Access(OFDMA) OFDMA System Resource Allocation Problem Algorithms

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Radio Communications

Radio Communications. J. C. Sprott Department of Physics University of Wisconsin - Madison Presented to Physics 208 on April 6, 2006. http://sprott.physics.wisc.edu/lectures.htm. Outline. Properties of EM Waves Choice of Frequencies Radio Wave Production Radio Wave Propagation

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Transmit Power Adaptation for Multiuser OFDM Systems

Transmit Power Adaptation for Multiuser OFDM Systems. Jiho Jang, Student Member, IEEE, and Kwang Bok Lee, Member, IEEE IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 21, NO. 2, FEBRUARY 2003 ?????? ??? 96325510. Outline. Introduction System Model Transmit Power Adaptation

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Data Communications and Networking

Data Communications and Networking. Chapter 6 Multiplexing References: Book Chapter 6 Data and Computer Communications, 6th edition, by William Stallings. Schedule. Signal encoding: 5 hours Multiplexing: 1 hour Error detection & correction: 2 hours Flow control & error control: 3 hours

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802.11a/g Kernel Identification

802.11a/g Kernel Identification. Saba Zia Bilal Saqib. Physical Layer Architecture and Kernel Identification (802.11a). Ref: IEEE Std 802.11a-1999(R2003). Physical Layer Architecture and Kernel Identification. Data Scrambler/ Descrambler. Convolutional Encoder / Viterbi decoder.

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DFT spreading OFDM options for 11ah PHY enhancement

DFT spreading OFDM options for 11ah PHY enhancement. Date: 2012-3-15. Authors:. Abstract. This presentation proposes DFT spreading OFDM options for 11ah PHY enhancement. Overview.

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