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Dissertations / Theses on the topic 'Space Modulation'

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Published: 5 September 2021

Last updated: 29 July 2025

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1

Rogers, L. Warren. "Synthetic space vector modulation." Monterey, California: Naval Postgraduate School, 2013. http://hdl.handle.net/10945/34731.

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Approved for public release; distribution is unlimited<br>Alternating current motors are used throughout the fleet because of their rugged construction and nearly maintenance free operation. Since the U.S. Navy is exploring and acting on the possibilities of DC distribution systems, the need exists for simple, reliable three-phase voltage source inverter (VSI) powered induction machines. Until recently, VSIs utilized a pulse width modulation (PWM) scheme controlling the frequency and amplitude of each phase. A novel and simple hardware centered VSI controller was designed, simulated, built and

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2

Silvester, Anna-Marie. "Space-time continuous phase modulation." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/14721.

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The combination of Space-Time (ST) coding and Continuous-Phase Modulation (CPM) produces a low power, energy efficient communication scheme suitable for wireless transmission. Space-time coding increases the reliability of transmission, and continuous-phase modulation (CPM) has the potential to provide considerable energy savings. CPM is a modulation technique that involves the transmission of a signal with continuous-phase and a constant envelope, where the continuous-phase property produces a very bandwidth efficient signal, and the constant-envelope property enables non linear (and thus ene

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3

Maleki, Pirbazari Mehdi. "Space Modulation: Signal Design and Performance Evaluation." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1436529300.

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4

Maw, Rachel Leigh. "Space-time Coded Systems with Continuous Phase Modulation." Thesis, University of Canterbury. Electrical and Computer Engineering, 2007. http://hdl.handle.net/10092/1185.

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Space-time coded systems developed in the last ten years have been designed primarily using linear modulation. Non-linear continuous phase modulation has desirable constant envelope properties and considerable potential in space-time coded systems. The work in this thesis is focussed on developing and analysing an integrated space-time coded continuous phase modulated (STC-CPM) system. The coding of the space-time encoder and the modulation is incorporated into a single trellis encoder. This allows state combining, which leads to complexity reduction due to the reduced number of states

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5

Khan, Hamid. "Optimised space vector modulation for variable speed drives." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2012. http://tel.archives-ouvertes.fr/tel-00999475.

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The dissertation documents research work carried out on Pulse Width Modulation (PWM) strategies for hard switched Voltage Source Inverters (VSI) for variable speed electric drives. This research is aimed at Hybrid Electric Vehicles (HEV). PWM is at the heart of all variable speed electric drives; they have a huge influence on the overall performance of the system and may also help eventually give us an extra degree of freedom in the possibility to rethink the inverter design including the re-dimensioning of the inverter components.HEVs tend to cost more than conventional internal combustion en

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6

Celanovic, Nikola. "Space Vector Modulation and Control of Multilevel Converters." Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/29164.

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This dissertation is the result of research and development of a power conditioning system for Superconductive Magnetic Energy Storage System. The dominant challenge of this research was to develop the power conditioning system that can match slowly varying dc voltage and dc current on the super conductive magnet side with the ac voltages and ac currents on the utility side. At the same time the power conditioning system was required to provide a bi-directional power flow to the superconductive magnet. The focus of this dissertation is a three-level diode clamped dc-ac converter which is a

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7

Elfadil, Husam. "Bit-Mapping and Channel Coding for Space Modulation." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1510151497786921.

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8

CastinÌƒeira, Moreira Jorge. "Signal space coding over rings." Thesis, Lancaster University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322886.

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9

Himsoon, Thanongsak. "Differential modulation for broadband space-time/cooperative wireless communications." College Park, Md. : University of Maryland, 2006. http://hdl.handle.net/1903/3984.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2006.<br>Thesis research directed by: Electrical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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10

Tujkovic, D. (Djordje). "Space-time turbo coded modulation for wireless communication systems." Doctoral thesis, University of Oulu, 2003. http://urn.fi/urn:isbn:9514269977.

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Abstract High computational complexity constrains truly exhaustive computer searches for good space-time (ST) coded modulations mostly to low constraint length space-time trellis codes (STTrCs). Such codes are primarily devised to achieve maximum transmit diversity gain. Due to their low memory order, optimization based on the design criterion of secondary importance typically results in rather modest coding gains. As another disadvantage of limited freedom, the different low memory order STTrCs are almost exclusively constructed for either slow or fast fading channels. Therefore in practical

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11

Nguyen, Trung Thanh. "Binary-coded modulation and applications in free-space optics." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/33145.

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Binary-coded modulation techniques such as bit-interleaved coded modulation (BICM) and multilevel coding (MLC) are pragmatic methods to achieve both high power and bandwidth efficiencies in digital communications. These techniques enable the combination of powerful and popular off-the-shelf binary codes with bandwidth-efficient multilevel signaling without considerable performance loss compared to joint coding and modulation designs. Today, binary-coded modulation has become almost universal in digital communication systems. This thesis concerns several aspects of binary-coded modulation an

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12

Mason, Nicholas J. "Space vector modulation of a 4-leg matrix converter." Thesis, University of Nottingham, 2011. http://eprints.nottingham.ac.uk/12266/.

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This thesis covers the investigation into the use of Space Vector Modulation for the control of a 4-leg matrix converter, which is capable of providing a 3-phase plus neutral supply from a standard balanced 3-phase source. Traditional 3x3 matrix converters have limited use in this application as they are only capable of supplying a balanced three-phase load. It would be desirable to be able to power unbalanced and non-linear loads, requiring that the converter provides a neutral connection. As with voltage source inverters, this goal can be achieved by extending the number of output legs in th

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13

Nelson, N. Thomas. "Space-Time Coding with Offset Modulations." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd2155.pdf.

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14

Hashmi, Ali Javed. "Novel architectures for broadband free-space optical communications: deep-space and terrestrial optical links." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33992.

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The main objective of this research is to design, simulate, and evaluate telescope array-based receiver architectures for the inter-planetary optical communication links, which is able to provide broadband data support for future deep-space and universe exploration missions. The major aspects of this research are as follows: (1) evaluation and performance comparison of telescope arrays-based receiver with a large, monolithic telescope-based receiver, (2) mathematical modeling and analysis of the impact of various limiting factors (i.e., background noise, atmospheric turbulence, synchronization

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15

Tang, Weiyi. "A receiver for continuous phase modulation in Walsh signal space." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0001/NQ32891.pdf.

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16

Hesse, Matthias. "L2-orthogonal space-time code design for continuous phase modulation." Nice, 2010. http://www.theses.fr/2010NICE4008.

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Orthogonal Space-Time block codes (STBC) have been a popular way to implement wireless communications systems with full diversity and simple decoupled maximum-likelihood decoding. However, all these codes rely on pointwise orthogonality which leads to a well-known degradation of data rate for more than two antennas. In this thesis, we introduce the concept of L2-orthogonality for non-linear Space-Time codes (STC). Our approach generalizes code design based on pointwise orthogonality. Hence, we are able to derive new codes with the same advantages as pointwise orthogonal STBC, i. E. Low decodin

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17

Prasad, V. Himamshu. "Analysis and Comparison of Space Vector Modulation Schemes for Three-Leg and Four-Leg Voltage Source Inverters." Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/36578.

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Several space vector modulation schemes have been analyzed for three-leg and four-leg voltage source inverters. The analysis is performed with respect to a) switching losses, b) total harmonic distortion, c) peak-to-peak ripple in the line current and d) the ease of digital implementation. The analysis is performed over the entire range of modulation index and for varying load power factors (leading and lagging) under both balanced and unbalanced load conditions. The analysis shows that the performance of four-leg inverters is similar to three-leg inverters for various space vector modulation

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18

Tang, Yipeng. "DSP implementation of trellis coded modulation and distributed space time coding." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=1796.

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Thesis (M.S.)--West Virginia University, 2001.<br>Title from document title page. Document formatted into pages; contains v, 118, [64] p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 114-118).

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19

Kronberg, Anders. "Salient Pole Motor Inverter Design : with Implementation of Space Vector Modulation." Thesis, Uppsala universitet, Elektricitetslära, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-192994.

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The researchers at the Department of Electricity at Uppsala University has recently entered the field of electric motor design, however no real knowledge of motor control of salient pole permanent magnet motors exists in the department. This master thesis is a continuation of a previous bachelor thesis that analyses the theory behind the control and simulating two different control methods. The two methods are here discarded for their high torque ripple. A third method is therefore implemented in this thesis to improve the performance. This thesis will present the design and construction of an

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20

Abdool-Rassool, Sheik Bilal. "Space-time trellis coded modulation for high speed wireless data transmission." Thesis, King's College London (University of London), 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409319.

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21

Alamri, Osamah R. "Turbo detection of sphere packing modulation aided space-time coding schemes." Thesis, University of Southampton, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.435719.

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22

Nelson, Tom, Michael Rice, and Michael Jensen. "EXPERIMENTAL RESULTS FOR SPACE-TIME CODING USING ARTM TIER-1 MODULATION." International Foundation for Telemetering, 2005. http://hdl.handle.net/10150/604783.

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ITC/USA 2005 Conference Proceedings / The Forty-First Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2005 / Riviera Hotel & Convention Center, Las Vegas, Nevada<br>When using two antennas to transmit telemetry from an airborne platform, self interference results when both transmit antennae are visible to the receive antenna. This self interference can lead to link outages and severe distortion, especially as data rates increase above 5 Mbits/sec. Space-time coding can be used to provide transmit diversity to overcome this self interference problem. Th

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23

Leatham, Robert L. "Space-Time Coding for the Advanced Range Telemetry Continuous Phase Modulation." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8413.

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Aeronautical telemetry systems that transmit the same signal through multiple antennas from the flight vehicle suffer from severe link dropouts when the signals destructively interfere one with another at receiver. The underlying issue is a transmit array with element spacing far greater than the wavelength producing a transmit antenna pattern with significant and deep nulls. Recently, space-time coding techniques have been proven to resolve the issue for systems using linear modulations and shaped-offset quadrature shift keying (SOQPSK) modulation, a non-linear continuous phase modulation (CP

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24

Xiros, Nikolaos I. DEng. "Exact Feedback Linearization of Systems with State-Space Modulation and Demodulation." ScholarWorks@UNO, 2019. https://scholarworks.uno.edu/td/2657.

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The control theory of nonlinear systems has been receiving increasing attention in recent years, both for its technical importance as well as for its impact in various fields of application. In several key areas, such as aerospace, chemical and petrochemical industries, bioengineering, and robotics, a new practical application for this tool appears every day. System nonlinearity is characterized when at least one component or subsystem is nonlinear. Classical methods used in the study of linear systems, particularly superposition, are not usually applied to the nonlinear systems. It is necessa

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25

Zhao, Lu. "Analysis and design of coded space time modulation = Analyse und Entwurf von in Zeit und Raum codierten digitalen Modulationsverfahren /." Aachen : Shaker, 2005. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=013370889&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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26

Christensen, Jeppe. "Non-Standard Crystallography : Examples in 3- and 3+1 Dimensional Space." Doctoral thesis, Stockholm : Department of Physical, Inorganic and Structural Chemistry, Stockholm University, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-7194.

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27

Baker, Kenneth R. "Importance sampling simulation of free-space optical APD pulse position modulation receivers." Diss., This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-06062008-172207/.

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28

Pelekanakis, Konstantinos. "Harvesting time-frequency-space diversity with coded modulation for underwater acoustic communications." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/50587.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009.<br>Includes bibliographical references (leaves 172-180).<br>The goal of this thesis is to design a low-complexity, high data-rate acoustic communications system with robust performance under various channel conditions. The need for robust performance emerges because underwater acoustic (UWA) channels have time-varying statistics, thus a coded modulation scheme optimally designed for a specific channel model will be suboptimal when the channel statistics change. A robust approach should use a coded mo

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29

Nguyen, Tien, and Ashok Mathur. "CROSS-MODULATION INTERFERENCE AVOIDANCE FOR ENHANCED PERFORMANCE OF DEEP SPACE TELEMETRY SYSTEMS." International Foundation for Telemetering, 1986. http://hdl.handle.net/10150/615557.

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International Telemetering Conference Proceedings / October 13-16, 1986 / Riviera Hotel, Las Vegas, Nevada<br>In this paper we investigate the performance degradation of the NASA Deep Space Network (DSN) telemetry receiving system for two data channels in the presence of cross-modulation interference. It is shown that the sub-carrier waveforms and/or frequencies can be selected to suppress the cross-modulation interference for enhanced deep-space telemetry performance. The application of this study is suggested for a simultaneous telemetry and ranging as well as telecommand and ranging operati

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30

Rende, Deniz. "Bit-interleaved space-frequency coded modulation for orthogonal frequency-division multiplexing systems." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0006420.

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31

Pichler, Paul. "Representation and modulation of mechanical information in the lateral line of larval zebrafish." Thesis, University of Sussex, 2018. http://sro.sussex.ac.uk/id/eprint/76860/.

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The lateral line organ in fish and amphibians transforms fluid motion in the animal's surroundings into a representation of its hydrodynamic environment. This sense is involved in complex behaviors, ranging from rheotaxis to schooling. The primary sensory neurons are hair cells, each of which can tonically transmit a graded ‘analog' signal to afferent neurons, via highly specialized ‘ribbon' synapses. Many questions about this first step in sensory coding remain to be answered. For example: What is the relationship between the biologically relevant stimulus and hair cell output? How do the syn

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32

Nory, Ravikiran. "Performance Analysis of Space-Time Coded Modulation Techniques using GBSB-MIMO Channel Models." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/33449.

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Wireless systems are rapidly developing to provide high speed voice, text and multimedia messaging services which were traditionally offered by wire line networks. To support these services, channels with large capacities are required. Information theoretic investigations have shown that Multiple Input Multiple Output (MIMO) channels can achieve very high capacities. Space-Time Block Coding (STBC) and Bell Labs Layered Space-Time Architecture (BLAST) are two potential schemes which utilize the diversity offered by MIMO channels to provide reliable high date rate wireless communication. This wo

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Ghosna, Fadi Jawdat. "Pulse position modulation coding schemes for optical inter-satellite links in free space." Thesis, University of Huddersfield, 2010. http://eprints.hud.ac.uk/id/eprint/8766/.

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The rapid and significant development of communications links between satellites has made it possible to use various applications such as relay voice, video, multimedia, etc. As a result, a great deal of research has been done in this field during the last few years to reduce power consumption and increase transmission reliability. This thesis is concerned with an analysis of intersatellite links in free space, with optical links using laser sources being considered in particular. It includes a literature survey and a thorough theoretical investigation into designing the model of the link in f

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34

Narayanan, G. "Synchronised Pulsewidth Modulation Strategies Based On Space Vector Approach For Induction Motor Drives." Thesis, Indian Institute of Science, 1999. https://etd.iisc.ac.in/handle/2005/139.

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In high power induction motor drives, the switching frequency of the inverter is quite low due to the high losses in the power devices. Real-time PWM strategies, which result in reduced harmonic distortion under low switching frequencies and have maximum possible DC bus utilisation, are developed for such drives in the present work. The space vector approach is taken up for the generation of synchronised PWM waveforms with 3-Phase Symmetry, Half Wave Symmetry and Quarter Wave Symmetry, required for high-power drives. Rules for synchronisation and the waveform symmetries are brought out. Th

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Narayanan, G. "Synchronised Pulsewidth Modulation Strategies Based On Space Vector Approach For Induction Motor Drives." Thesis, Indian Institute of Science, 1999. http://hdl.handle.net/2005/139.

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In high power induction motor drives, the switching frequency of the inverter is quite low due to the high losses in the power devices. Real-time PWM strategies, which result in reduced harmonic distortion under low switching frequencies and have maximum possible DC bus utilisation, are developed for such drives in the present work. The space vector approach is taken up for the generation of synchronised PWM waveforms with 3-Phase Symmetry, Half Wave Symmetry and Quarter Wave Symmetry, required for high-power drives. Rules for synchronisation and the waveform symmetries are brought out. Thes

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36

Kumar, Kuldeep. "Pulse Position Modulation using BICM-ID for FSO Channels." International Foundation for Telemetering, 2013. http://hdl.handle.net/10150/579510.

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ITC/USA 2013 Conference Proceedings / The Forty-Ninth Annual International Telemetering Conference and Technical Exhibition / October 21-24, 2013 / Bally's Hotel & Convention Center, Las Vegas, NV<br>We investigate pulse position modulation (PPM) and multipulse PPM (MPPM) for free space op- tical channels using bit interleaved coded modulation with iterative decoding. Data bits are first encoded by using a non recursive convolutional code and the coded bits after an interleaver are modulated before transmission. Iterative decoding is performed at the receiver. Optimized mapping is designed for

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37

Abdmouleh, Ahmed. "Codes correcteurs d'erreurs NB-LDPC associés aux modulations d'ordre élevé." Thesis, Lorient, 2017. http://www.theses.fr/2017LORIS452/document.

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Cette thèse est consacrée à l'analyse de l'association de codes LDPC non-binaires (LDPC-NB) à des modulations d’ordre élevé. Cette association vise à améliorer l’efficacité spectrale pour les futurs systèmes de communication sans fil. Notre approche a consisté à tirer au maximum profit de l'association directe des symboles d’un code LDPC-NB sur un corps de Galois avec une constellation de même cardinalité. Notre première contribution concerne la diversité spatiale obtenue dans un canal de Rayleigh avec et sans effacement en faisant subir une rotation à la constellation. Nous proposons d’utilis

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38

Zhang, Richard S. "High Performance Power Converter Systems for Nonlinear and Unbalanced Load/Source." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/29314.

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This dissertation covers three levels of issues and solutions dealing with unbalanced and/or nonlinear situations in power electronic systems, namely power converter level, power converter system level, and large-scale power electronics system level. At power converter level, after review of traditional PWM methods, especially two-dimensional space vector modulation schemes, three-dimensional space vector modulation schemes are proposed for four-legged voltage source converters, including inverters and rectifiers. The four-legged power converters with three-dimensional space vector modulatio

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Kilcoyne, Deirdre Kathleen. "Link Adaptation for Mitigating Earth-to-Space Propagation Effects on the NASA SCaN Testbed." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/71362.

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In Earth-to-Space communications, well-known propagation effects such as path loss and atmospheric loss can lead to fluctuations in the strength of the communications link between a satellite and its ground station. Additionally, a less-often considered effect of shadowing due to the geometry of the satellite and its solar panels can also lead to link degradation. As a result of these anticipated channel impairments, NASA's communication links have been traditionally designed to handle the worst-case impact of these effects through high link margins and static, lower rate, modulation formats.

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Zi, Juan. "Differential amplitude/phase space-time modulation." Thesis, 2003. http://hdl.handle.net/2429/15339.

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In this thesis, a differential amplitude/phase space-time modulation (DAPSTM) is proposed for multiple transmit antenna wireless systems over flat Rayleigh fading channels. Two conventional noncoherent detection schemes, namely, simply heuristic (SH) differential detection (DD) and maximum likelihood (ML) DD are presented. Furthermore, two improved noncoherent detection schemes, multiple-symbol detection (MSD) and decisionfeedback DD (DF-DD) with lower decoding complexity are derived. By taking the dependencies among the received symbols into account, MSD and DF-DD can reduce the error

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Jeganathan, Jeyadeepan. "Space shift keying modulation for MIMO channels." Thesis, 2008. http://spectrum.library.concordia.ca/975947/1/MR45706.pdf.

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In this thesis, we analyze modulation techniques that exploit multiple antennas in wireless communication. We first study the so-called spatial modulation (SM) technique for MIMO channels. Since the original SM detector is based on an ad hoc design, and only functions under some artificial assumptions about the channel, we derive the optimal detector for SM. The new detector performs significantly better than the original ({598} 4 dB gain), and we support our results by deriving a closed form expression for the average bit error probability. As well, we show that SM with the optimal detector a

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Chien, Shao-Lun, and 簡紹倫. "Code Searches of Unitary Space-time Modulation." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/47497346452180681992.

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碩士<br>國立中央大學<br>通訊工程研究所<br>99<br>Unitary space-time modulation(USTM) is well tailored for flat fading channels where neither the transmitter nor the receiver knows the fading coefficients. In this thesis, we propose a new schemes of unitary space-time modulation. Different from the past proposed systematic codeword, we consider the unitary space-time codeword which don’t have the algebraic structure. Then we use asymptotic union bound and diversity product to search unitary space-time codeword.

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Chiang, Hsu-Hao, and 江旭豪. "Differential Space-Time Modulation with a Table." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/06871039549532731495.

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碩士<br>國立中央大學<br>通訊工程研究所<br>100<br>Recently, a new differential encoder was proposed by a look-up table instead of a rule, and the new differential encoding was extended to differential space-time modulation (DSTM). In this thesis, we propose new examples of DSTM using a look-up table. The proposed examples have satisfactory error performance without constellation expansion. In addition, we try multiple-block differential encoding by a look-up table. To further enhance the error performance, we also propose differential space-time trellis code (DSTTC) and construct codes as well as use comput

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Yan, Wei Xiang, and 顏瑋翔. "Interlevel-Correlated Space-Time Coded Spatial Modulation." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/zxf837.

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碩士<br>國立臺北科技大學<br>電機工程研究所<br>105<br>Space-time block codes (STBC) can provide good performance for wireless transmission in multi-input multi-output (MIMO) schemes. In recent years, space-time coded spatial modulation (STBC-SM) is a new technique which combines space-time block codes and spatial modulation (SM), the transmission antenna are chosen by information bits. There,more diversidy and better transmission efficiency can be achieved. In this thesis, we prose a new scheme by combing the interlevel coding technique and STBC-SM.In the new scheme, the code rate can be increased while the mi

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Huang, Jen-Chi, and 黃仁吉. "Design and Implementation of Turbo Trellis Coded Modulation and Space-Time Coded Modulation." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/23190035518331353896.

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碩士<br>國立高雄第一科技大學<br>電腦與通訊工程系<br>89<br>In communication system of modern times, modulater-demodulster and error-correcting codes for CODEC are two main parts. They pay key roles in transmission equipments to enchance communication system data transmission rate and lower bit error rate. To satisfy curreat getting strict bandwidth requirements, increase bandwidth efficiency and data transmission rate head for two direction to develop: (1)R&D bandwidth which own higher utilization rate modulation;such as, high transmission data rate M-aryQAM, M-aryAM and M-aryPM. Especially to which has

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Zhang, Qing. "Differential space-time modulation and unitary constellation design /." 2006. http://wwwlib.umi.com/dissertations/fullcit/3198421.

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Elkhazin, Akrum. "Space-time Coded Modulation Design in Slow Fading." Thesis, 2009. http://hdl.handle.net/1807/19320.

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This dissertation examines multi-antenna transceiver design over flat-fading wireless channels. Bit Interleaved Coded Modulation (BICM) and MultiLevel Coded Modulation (MLCM) transmitter structures are considered, as well as the used of an optional spatial precoder under slow and quasi-static fading conditions. At the receiver, MultiStage Decoder (MSD) and Iterative Detection and Decoding (IDD) strategies are applied. Precoder, mapper and subcode designs are optimized for different receiver structures over the different antenna and fading scenarios. Under slow and quasi-static channel condi

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Chin-Kuei, Lai. "Space-Time Orthogonal Coding with Space Shift Keying Modulation on Wireless Fading Channels." 2003. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0009-0112200611303117.

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Lai, Chin-Kuei, and 賴欽貴. "Space-Time Orthogonal Coding with Space Shift Keying Modulation on Wireless Fading Channels." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/24205789220659391801.

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碩士<br>元智大學<br>電機工程學系<br>91<br>The orthogonal block coding with space shift keying (SSK-OBC) is explored in this thesis. More than two antennas are employed to transmit and signal the information bits. The orthogonal block coding (OBC) reduces the correlation of fading factors on different channels and enhances the performance of space shift keying (SSK) modulation. Numerical examples are presented to examine the performance for the probability of decoding errors.

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Srinivasan, Siddharth K. "Gallager’s random coding exponent for differential space time modulation." Thesis, 2006. http://hdl.handle.net/2429/17770.

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In this thesis, we study differential space-time modulation with multiple transmit and receive antennas over a frequency non-selective block fading channel in the absence of channel state information (CSI) at both the transmitter and the receiver. We focus on the analysis of the random coding exponent proposed by Gallager for such spacetime channels employing differential modulation with finite signal sets, and consider multiple symbol differential detection (MSDD) with an observation window size N. The underlying principle of MSDD is to utilize an increased observation window of N > 2 consecu

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