Exploration of Spatial Diversity in Multi-Antenna Wireless Communication Systems
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Systems and Techniques for Multicell-MIMO and Cooperative Relaying in Wireless Networks Agisilaos Papadogiannis
Systems and Techniques for Multicell-MIMO and Cooperative Relaying in Wireless Networks Agisilaos Papadogiannis To cite this version: Agisilaos Papadogiannis. Systems and Techniques for Multicell-MIMO and Cooperative Relaying in Wireless Networks. Electronics. Télécom ParisTech, 2009. English. pastel-00598244 HAL Id: pastel-00598244 https://pastel.archives-ouvertes.fr/pastel-00598244 Submitted on 5 Jun 2011 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. THESIS In Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy from TELECOM ParisTech Specialization: Electronics and Communications Agisilaos Papadogiannis Systems and Techniques for Multicell-MIMO and Cooperative Relaying in Wireless Networks Thesis defended on the 11th of December 2009 before a committee composed of: President Prof. Jean-Claude Belfiore, TELECOM ParisTech, France Reviewers Prof. M´erouaneDebbah, SUPELEC, France Prof. Gema Pi~nero,Universidad Politechnica de Valencia, Spain Examiners Dr. Rodrigo de Lamare, University of York, UK Dr. Eric Hardouin, Orange Labs, France Thesis supervisor Prof. David Gesbert, EURECOM, France THESE pr´esent´eepour obtenir le grade de Docteur de TELECOM ParisTech Sp´ecialit´e:Electronique et Communications Agisilaos Papadogiannis Syst`emeset Techniques MIMO Coop´eratifdans les R´eseauxMulti-cellulaires Sans Fil Th`esesoutenue le 11 d´ecembre 2009 devant le jury compos´ede: Pr´esident Prof. -
5G Waveform & Multiple Access Techniques
November 4, 2015 5G Waveform & Multiple Access Techniques 1 © 2015 Qualcomm Technologies, Inc. All rights reserved. Outline Executive summary Waveform & multi-access techniques evaluations and recommendations • Key waveform and multiple-access design targets • Physical layer waveforms comparison • Multiple access techniques comparison • Recommendations Additional information on physical layer waveforms • Single carrier waveform • Multi-carrier OFDM-based waveform Additional information on multiple access techniques • Orthogonal and non-orthogonal multiple access Appendix • References • List of abbreviations 2 © 2015 Qualcomm Technologies, Inc. All rights reserved. Executive summary 3 © 2015 Qualcomm Technologies, Inc. All rights reserved. Executive Summary • 5G will support diverse use cases - Enhanced mobile broadband, wide area IoT, and high-reliability services • OFDM family is well suited for mobile broadband and beyond - Efficient MIMO spatial multiplexing for higher spectral efficiency - Scalable to wide bandwidth with lower complexity receivers • CP-OFDM/OFDMA for 5G downlink - CP-OFDM with windowing/filtering delivers higher spectral efficiency with comparable out-of-band emission performance and lower complexity than alternative multi-carrier waveforms under realistic implementations - Co-exist with other waveform & multiple access options for additional use cases and deployment scenarios • SC-FDM/SC-FDMA for scenarios requiring high energy efficiency (e.g. macro uplink) • Resource Spread Multiple Access (RSMA) for use cases -
Adaptive Switching Between Spatial Diversity and Multiplexing: a Cross-Layer Approach
Adaptive Switching between Spatial Diversity and Multiplexing: a Cross-layer Approach JoseL´ opez´ Vicario and Carles Anton-Haro´ Centre Tecnologic` de Telecomunicacions de Catalunya (CTTC) c/ Gran Capita` 2-4, 08034 Barcelona (SPAIN) Email: {jose.vicario, carles.anton}@cttc.es Abstract— In this paper, we propose a cross-layer approach to [5], those transmission modes that maximize the spectral effi- solve the problem of switching between multiplexing and diversity ciency for a pre-determined target SER are selected according modes in an HSDPA context. In particular, three transmission to channel conditions. That is, the selection algorithm chooses modes are considered: diversity, spatial multiplexing and a hybrid diversity/multiplexing mode. The main purpose of this work is the transmission mode with the highest data rate for which the to achieve the maximum possible data rate according to scenario resulting SER is below a specific threshold. conditions rather than minimize the symbol error rate. To do However, in practical communications systems, link quality that, both the transmission mode and the modulation scheme is determined not only by the performance of the physical are jointly selected aimed at maximizing link layer throughput. layer procedures but, also, by the specific protocols used in Hence, a cross-layer methodology is addressed in the sense that physical layer parameters are adjusted with the aim of upper layers (such as Automatic Repeat Request (ARQ)). improving link layer performance. Computer simulation results Some optimization criteria aimed at maximizing link layer show the considerable performance gains of the proposed cross- throughput, are presented in [6] [7], showing considerable layer approach for which computational complexity still remains improvement with respect to conventional physical layer- affordable. -
Introduction for Cooperative Diversity and Virtual MIMO
IntroductionIntroduction forfor CooperativeCooperative DiversityDiversity andand VirtualVirtual MIMOMIMO Hsin-Yi Shen Apr 27, 2007 4/27/2007 Rensselaer Polytechnic Institute 1 OutlineOutline Introduction Cooperative Diversity and Virtual MIMO Cooperative MIMO Cooperative FEC Conclusions 4/27/2007 Rensselaer Polytechnic Institute 2 Introduction MIMO: degree-of-freedom gain & diversity gains However, MIMO requires multiple antennas at sources and receivers Cooperative diversity => achieve spatial diversity with even one antenna per-node (eg: MISO, SIMO, MIMO) Cooperative MIMO: special case of coop. diversity Achieve MIMO gains even with one antenna per-node. Eg: open-spectrum meshed/ad-hoc networks, sensor networks, backhaul from rural areas Cooperative FEC: link layer cooperation scheme for multi-hop wireless networks and sensor networks 4/27/2007 Rensselaer Polytechnic Institute 3 CooperativeCooperative DiversityDiversity Motivation In MIMO, size of the antenna array must be several times the wavelength of the RF carrier unattractive choice to achieve receive diversity in small handsets/cellular phones Cooperative diversity: Transmitting nodes use idle nodes as relays to reduce multi-path fading effect in wireless channels Methods Amplify and forward Decode and forward Coded Cooperation 4/27/2007 Rensselaer Polytechnic Institute 4 CooperativeCooperative DiversityDiversity SchemesSchemes Amplify and forward Decode and forward Coded cooperation amplify decode 0101… N1 bits N2 bits forward Frame 2 Frame 1 Relay node Relay -
Understanding Mmwave for 5G Networks 1
5G Americas | Understanding mmWave for 5G Networks 1 Contents 1 Introduction ..................................................................................................................................................... 6 2 Status of Millimeter Wave Spectrum ............................................................................................................. 9 2.1 Regional Status ........................................................................................................................................... 9 2.2 Global Millimeter Wave Auctions .............................................................................................................12 3 Millimeter Wave Technical Rules in the United States ...............................................................................15 3.1 Licensed Spectrum ..................................................................................................................................15 3.2 Lightly Licensed .......................................................................................................................................16 3.3 Unlicensed Spectrum ..............................................................................................................................17 4 Millimeter Wave Challenges and Opportunities ..........................................................................................19 4.1 Losses in Millimeter Wave .......................................................................................................................19 -
Performance Analysis of Cooperative Mimo Systems Using Decode and Forward Relaying
19th European Signal Processing Conference (EUSIPCO 2011) Barcelona, Spain, August 29 - September 2, 2011 PERFORMANCE ANALYSIS OF COOPERATIVE MIMO SYSTEMS USING DECODE AND FORWARD RELAYING Emna Ben Yahia and Hatem Boujemaa Higher School of Communications of Tunis/TECHTRA Research Unit, University of Carthage, Tunisia [email protected], [email protected] ABSTRACT of cooperative MIMO systems. Then we derive the expres- In this paper, considering a source, a relay and a destina- sion of the diversity order. tion with multiple antennas, we provide the exact Bit Er- The paper is organized as follows. Sections 2, 3 and 4 ror Probability (BEP) of dual-hop cooperative Multiple Input presents the performance analysis of cooperative MIMO sys- Multiple Output (MIMO) systems using Decode and For- tems using DF relaying respectively in the absence and pres- ward (DF) relaying for Binary Phase Shift Keying (BPSK) ence of a direct link. For the case where we don’t have a modulation assuming independent and identically distributed direct link, we study two scenarios. The first concerns sys- (i.i.d.) Rayleigh fading channels. When the source or the re- tems where the relay has a single transmit antenna and the lay has multiple antennas, it employs an Orthogonal Space second is about systems where the relay has multiple trans- Time Block Code (OSTBC) to transmit. The receiver uses mit antennas. Section 5 gives some numerical and simulation a Maximum Likelihood (ML) decoder. We derive the ex- results. Section 6 draws some conclusions. pressions of the Moment Generating Functions (MGF), the Probability Density Functions (PDF) of the Signal-to-Noise Ratio (SNR), the exact and asymptotic BEP at the destination 2. -
Generalized Frequency Division Multiplexing with Space and Frequency Index Modulation
2017 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom) Generalized Frequency Division Multiplexing with Space and Frequency Index Modulation Ersin Ozt¨ urk¨ 1,2, Ertugrul Basar1, Hakan Ali C¸ırpan1 1Istanbul Technical University, Faculty of Electrical and Electronics Engineering, 34469, Maslak, Istanbul, Turkey Email: {ersinozturk, basarer, cirpanh}@itu.edu.tr 2Netas, Department of Research and Development, 34912, Pendik, Istanbul, Turkey Email: [email protected] Abstract—Generalized frequency division multiplexing modulation symbols. In [6], a dual-mode OFDM-IM (DM- (GFDM) has been regarded as one of the promising candidates OFDM) scheme has been proposed to prevent throughput loss for the physical layer (PHY) of fifth generation (5G) wireless in OFDM-IM due to unused subcarriers. In the DM-OFDM networks. Multiple-input multiple-output (MIMO) friendliness is a key ability for a physical layer scheme to match the foreseen scheme, based on the OFDM subcarrier group concept in [3], requirements of 5G wireless networks. On the other hand, index two different constellation modes have been used to modulate modulation (IM) concept, which relies on conveying additional the selected subcarrier indices and the remaining subcarriers information bits through indices of certain transmit entities, in a subcarrier group. Furthermore, in [7] and [8], combination is an emerging technique to provide better spectral efficiency. of IM technique with MIMO methods, namely space and In this paper, a novel MIMO-GFDM system, which combines GFDM with space and frequency IM (SFIM) technique, is frequency IM (SFIM), has been investigated and significant proposed. In the GFDM-SFIM scheme, the transmit antenna, performance gains have been reported. -
Cooperative Diversity in Wireless Networks: Relay Selection and Medium Access
Helmut Leopold Adam Matr.-Nr. 9830200 Cooperative Diversity in Wireless Networks: Relay Selection and Medium Access DISSERTATION zur Erlangung des akademischen Grades Doktor der technischen Wissenschaften Alpen-Adria-Universit¨at Klagenfurt Fakult¨at fur¨ Technische Wissenschaften Begutachter: Univ.-Prof. Dr.-Ing. Christian Bettstetter Institut fur¨ Vernetzte und Eingebettete Systeme Alpen-Adria-Universit¨at Klagenfurt Univ.-Prof. Dr. Holger Karl Institut fur¨ Informatik Universit¨at Paderborn 08/2011 Declaration of honor I hereby confirm on my honor that I personally prepared the present academic work and carried out myself the activities directly involved with it. I also con- firm that I have used no resources other than those declared. All formulations and concepts adopted literally or in their essential content from printed, un- printed or Internet sources have been cited according to the rules for academic work and identified by means of footnotes or other precise indications of source. The support provided during the work, including significant assistance from my supervisor has been indicated in full. The academic work has not been submitted to any other examination authority. The work is submitted in printed and electronic form. I confirm that the content of the digital version is completely identical to that of the printed version. I am aware that a false declaration will have legal consequences. (Signature) (Place, date) Cooperative Diversity in Wireless Networks: Relay Selection and Medium Access Wireless communication systems suffer from a phenomenon called small scale fading which causes rapid and unpredictable fluctuations in the received signal strengths. Traditional methods to mitigate small scale fading effects impose re- strictions on the data exchange process and/or the used hardware which limit their applicability. -
Vision and Requirements for the Satellite Radio Interface(S) of IMT-Advanced
Report ITU-R M.2176 (07/2010) Vision and requirements for the satellite radio interface(s) of IMT-Advanced M Series Mobile, radiodetermination, amateur and related satellites services ii Rep. ITU-R M.2176 Foreword The role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services, including satellite services, and carry out studies without limit of frequency range on the basis of which Recommendations are adopted. The regulatory and policy functions of the Radiocommunication Sector are performed by World and Regional Radiocommunication Conferences and Radiocommunication Assemblies supported by Study Groups. Policy on Intellectual Property Right (IPR) ITU-R policy on IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO/IEC referenced in Annex 1 of Resolution ITU-R 1. Forms to be used for the submission of patent statements and licensing declarations by patent holders are available from http://www.itu.int/ITU-R/go/patents/en where the Guidelines for Implementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC and the ITU-R patent information database can also be found. Series of ITU-R Reports (Also available online at http://www.itu.int/publ/R-REP/en) Series Title BO Satellite delivery BR Recording for production, archival and play-out; film for television BS Broadcasting service (sound) BT Broadcasting service (television) F Fixed service M Mobile, radiodetermination, amateur and related satellite services P Radiowave propagation RA Radio astronomy RS Remote sensing systems S Fixed-satellite service SA Space applications and meteorology SF Frequency sharing and coordination between fixed-satellite and fixed service systems SM Spectrum management Note: This ITU-R Report was approved in English by the Study Group under the procedure detailed in Resolution ITU-R 1. -
Spatial Multiplexing Over Correlated MIMO Channels with a Closed Form Precoder
Spatial Multiplexing over Correlated MIMO Channels with a Closed Form Precoder Jabran Akhtar Department of Informatics University of Oslo P. O. Box 1080, Blindern N-0316 Oslo, Norway Email: jabrana@ifi.uio.no David Gesbert Mobile Communications Department Eurecom´ Institute 2229 Route des Cretes,ˆ BP 193 F-06904 Sophia Antipolis Cede´ x, France Email: [email protected] This work was supported by a research contract with Telenor R&D. A version of this paper was presented at Globecom 2003. 2 Abstract This paper addresses the problem of MIMO spatial-multiplexing (SM) systems in the presence of antenna fading correlation. Existing SM (V-BLAST and related) schemes rely on the linear independence of transmit antenna channel responses for stream separation and suffer considerably from high levels of fading correlation. As a result such algorithms simply fail to extract the non-zero capacity that is present even in highly correlated spatial channels. We make the simple but key point that just one transmit antenna is needed to send several independent streams if those streams are appropriately superposed to form a high-order modulation (e.g. two 4-QAM signals form a 16-QAM)! The concept builds upon constellation multiplexing (CM) [1] whereby distinct QAM streams are superposed to form a higher-order constellation with rate equivalent to the sum of rates of all original streams. In contrast to SM transmission, the substreams in CM schemes are differentiated through power scaling rather than through spatial signatures. We build on this idea to present a new transmission scheme based on a precoder adjusting the phase and power of the input constellations in closed-form as a function of the antenna correlation. -
MIMO and Smart Antennas for Mobile Broadband Systems - October 2012 - All Rights Reserved
Page 1/42 4G Americas – MIMO and Smart Antennas for Mobile Broadband Systems - October 2012 - All rights reserved. CONTENTS Introduction ............................................................................................................................................... 3 1. Antenna Fundamentals ........................................................................................................................ 4 2. MIMO with LTE.................................................................................................................................... 7 2.1 LTE Downlink MIMO Basics ........................................................................................................... 8 2.2 Antenna Configurations for MIMO................................................................................................ 16 2.3 Performance of the various antenna configurations .................................................................... 22 2.4 An Analysis of Antenna Configurations for 4x2 and 4x4 MIMO ................................................... 24 2.5 Antenna Array Calibration ............................................................................................................ 27 Summary ................................................................................................................................................ 35 Definitions and Acronyms ...................................................................................................................... 36 References ............................................................................................................................................ -
Cooperative Diversity for the Cellular Uplink: Sharing Strategies, Performance Analysis, and Receiver Design
Graduate Theses, Dissertations, and Problem Reports 2005 Cooperative diversity for the cellular uplink: Sharing strategies, performance analysis, and receiver design Kanchan G. Vardhe West Virginia University Follow this and additional works at: https://researchrepository.wvu.edu/etd Recommended Citation Vardhe, Kanchan G., "Cooperative diversity for the cellular uplink: Sharing strategies, performance analysis, and receiver design" (2005). Graduate Theses, Dissertations, and Problem Reports. 3221. https://researchrepository.wvu.edu/etd/3221 This Thesis is protected by copyright and/or related rights. It has been brought to you by the The Research Repository @ WVU with permission from the rights-holder(s). You are free to use this Thesis in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you must obtain permission from the rights-holder(s) directly, unless additional rights are indicated by a Creative Commons license in the record and/ or on the work itself. This Thesis has been accepted for inclusion in WVU Graduate Theses, Dissertations, and Problem Reports collection by an authorized administrator of The Research Repository @ WVU. For more information, please contact [email protected]. Cooperative Diversity for the Cellular Uplink: Sharing Strategies, Performance Analysis, and Receiver Design by Kanchan G. Vardhe Thesis submitted to the College of Engineering and Mineral Resources at West Virginia University in partial ful¯llment of the requirements for the degree of Master of Science in Electrical Engineering Daryl Reynolds, Ph.D., Chair Matthew C.Valenti, Ph.D. Arun Ross, Ph.D. Lane Department of Computer Science and Electrical Engineering Morgantown, West Virginia 2005 Keywords: Cooperative Diversity, MIMO, Decode and Forward, Space Time Codes, Information Outage Probability Copyright 2005 Kanchan G.