'Ofdma' diaporamas de présentation

OFDMA performance in 11ax

OFDMA performance in 11ax. Date: 2015-09-14. Authors:. Introduction. The performance of OFDMA depends on both PHY and MAC, i.e., OFDMA resource unit structure, traffic and scheduling, feedback and link adaptation, and etc.

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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: [ NICT PHY Pre-Proposal to Call for Contributions ] Date Submitted: [ February 27th , 2014] Source: [Marco Hernandez, Huan-Bang Li, Igor Dotli?, Ryu Miura ] Company: [ NICT]

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The Theory and Technology of Error Control Coding

Chapter 6 OVCDM (OVCDMA) Technology with High Coding Gain & Spectral Efficiency. The Theory and Technology of Error Control Coding. Outline. Background OVCDM(OVCDMA) Technology OVCDM design rules with code rate greater 1 Simulation Results Ongoing 4G-related R&D works Conclusions

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Scalable OFDMA Physical Layer in IEEE 802.16 WirelessMAN

Scalable OFDMA Physical Layer in IEEE 802.16 WirelessMAN. Advisor: Dr. Kai-Wei Ke Speaker: Chao-Sung yah Date:12/3/2007. Outline. Introduction Multicarrier design requirement and tradeoffs Basic of OFDMA frame structure Conclusion Reference Q&A. Introduction(1/3).

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Cellular COMMUNICATIONS

Cellular COMMUNICATIONS. LTE. Data Rate. Requirements And Targets to LTE. reduced delays, in terms of both connection establishment and transmission latency; increased user data rates; increased cell-edge bit-rate, for uniformity of service provision;

551 views • 40 slides

Long Term Evolution

Long Term Evolution. Beyond 3G. OVERVIEW. LTE targets Network architecture LTE Physical layer LTE Access tecniques MIMO Channels LTE Advanced. LTE TARGETs. Packet-Domain-Services only (e.g. VoIP) ? upon LTE, TCP/IP- based layers

543 views • 35 slides

Multiple-Input and Multiple-Output , MIMO ( mee-moh or my-moh )

Multiple-Input and Multiple-Output , MIMO ( mee-moh or my-moh ). Understanding of SISO, SIMO, MISO and MIMO. Topics. Introduction What is MIMO? History of MIMO Functions of MIMO Forms of MIMO Applications of MIMO Mathematical Description. Introduction.

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OFDMA SYSTEM Mobile WiMAX 802.16e and Next Generation PHS

OFDMA SYSTEM Mobile WiMAX 802.16e and Next Generation PHS. Fire Tom Wada Professor, Information Engineering, Univ. of the Ryukyus. New Broadband Wireless Access Service in Japan. Japan government assigned 2.5GHz BWA bands to Two Companies on 2007/December. UQ communications (KDDI)

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HSPA High Speed Packet Access

HSPA High Speed Packet Access. Aim.

1.83k views • 24 slides

Lecture 10: Worldwide Interoperability for Microwave Access

Lecture 10: Worldwide Interoperability for Microwave Access. July 27, 2008. 896960 Introduction to Algorithmic Wireless Communications. David Amzallag david.amzallag@bt.com www.cs.technion.ac.il/~amzallag/awc. Worldwide Interoperability for Microwave Access (WiMAX).

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802.16 for WAN (WiMax)

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Summary and Discussions of Proposals on Potential PHY Technologies in HEW

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Comparisons of Simultaneous Downlink Transmissions

Comparisons of Simultaneous Downlink Transmissions. Date: 2014-09-12. Authors:. Abstract. Downlink simultaneous transmissions is an important candidate technology and may be required to achieve improved spectral efficiency in dense network environments.

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Radio-over-fibre transmission of multi-carrier 64-QAM radio signal at 18 GHz

Radio-over-fibre transmission of multi-carrier 64-QAM radio signal at 18 GHz. Hejie Yang , Maria Garcia Larrode, Gert-Jan Rijckenberg, Eduward Tangdiongga and A.M.J. Koonen Electro-optics communication group COBRA Institute Eindhoven University of Technology. Higher radio frequency .

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By Sai Anirudh kantabathina Ravi Pinjala

Evolution of 4G. By Sai Anirudh kantabathina Ravi Pinjala. Introduction. What is this Research project about?. Service Evolution. Wire less Telephone technologies Pre-Cellular Predecessor Services Operators. Contd. Wireless Telephone technologies First Generation

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Dynamic Resource Allocation in OFDMA Systems

13. ComNets-Workshop 2006. Dynamic Resource Allocation in OFDMA Systems. Michael Einhaus Chair of Communication Networks RWTH Aachen University, Germany 13. ComNets-Workshop, Mobil- und Telekommunikation March 31st, 2006, Aachen, Germany. Overview. Introduction OFDMA

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Basic functionality: Antenna Pattern Antenna positioning Reports and debug mode

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OFDMA Performance Analysis

OFDMA Performance Analysis. Authors:. Date: 2014-09-15. Background. OFDMA is a promising technology to increase the area throughput From PHY POV, OFDMA can benefit from diversity gain

236 views • 11 slides

4-G Cellular Systems

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OFDMA Performance Analysis

OFDMA Performance Analysis. Authors:. Date: 2014-09-14. Background. OFDMA is a promising technology to increase the area throughput From PHY POV, OFDMA can benefit from diversity gain

273 views • 9 slides