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Dissertations / Theses on the topic 'Generalised Spatial Modulation'

Author: Grafiati
Published: 6 September 2023
Last updated: 7 September 2023

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1

Sun, Yafei. "Generalized Spatial Modulation with Correlated Antennas in Rayleigh Fading Channels." International Foundation for Telemetering, 2014. http://hdl.handle.net/10150/578366.

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ITC/USA 2014 Conference Proceedings / The Fiftieth Annual International Telemetering Conference and Technical Exhibition / October 20-23, 2014 / Town and Country Resort & Convention Center, San Diego, CA<br>Spatial modulation (SM) is a transmission scheme where only one transmit antenna is active at any time instant. It thus reduces interchannel interference (ICI) and receiver complexity over traditional multi-antenna systems. However, the spectral efficiency of SM is low. To improve the spectral efficiency, generalized spatial modulation (GSM) can be used. In this paper, we propose to apply t
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2

Sun, Yafei, and Deva K. Borah. "Performance Study of Precoding Techniques on Generalized Spatial Modulation with Correlated Antennas." International Foundation for Telemetering, 2015. http://hdl.handle.net/10150/596384.

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ITC/USA 2015 Conference Proceedings / The Fifty-First Annual International Telemetering Conference and Technical Exhibition / October 26-29, 2015 / Bally's Hotel & Convention Center, Las Vegas, NV<br>Spatial modulation (SM) reduces transceiver complexity and inter-channel interference over traditional multiple input multiple output (MIMO) systems. It has been shown recently in the literature that the use of a precoder in an SM or a generalized spatial modulation (GSM) system can significantly improve error performance. This paper investigates two issues related to precoders: 1) the use of a pr
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3

Roth, Matthias, Jörg Heber, and Klaus Janschek. "System design of programmable 4f phase modulation techniques for rapid intensity shaping: A conceptual comparison." SPIE, 2016. https://tud.qucosa.de/id/qucosa%3A35096.

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The present study analyses three beam shaping approaches with respect to a light-efficient generation of i) patterns and ii) multiple spots by means of a generic optical 4f-setup. 4f approaches share the property that due to the one-to-one relationship between output intensity and input phase, the need for time-consuming, iterative calculation can be avoided. The resulting low computational complexity offers a particular advantage compared to the widely used holographic principles and makes them potential candidates for real-time applications. The increasing availability of high-speed phase mo
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4

Gunde, Kiran. "Spectral Efficiency Improvement in Spatial Modulation Systems." Thesis, 2019. https://etd.iisc.ac.in/handle/2005/4724.

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A novel energy efficient Multiple-Input-Multiple-Output (MIMO) technique is called Spatial Mod- ulation (SM). It uses only one radio frequency (RF) chain that reduces the hardware complexity and cost of the system. The concept of SM is to transmit the data information using modulation constellation and spatial constellation. It increases the spectral efficiency by keeping only one an- tenna active per every symbol period. Spatial Multiplexing (SMX) uses equal number of RF chains with transmit antennas that increases the hardware complexity and cost of the system. SM is free from Inter Ch
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5

Farto, Bernardo Brogueira. "Desenho de pré-codificadores e combinadores para comunicações multiutilizador assistidas por modulações de índice em sistemas pós 5G." Master's thesis, 2020. http://hdl.handle.net/10071/21979.

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Considerando os avanços tecnológicos das últimas décadas, espera-se que a próxima geração de comunicações sem fios siga a tendência de um aumento significativo da robustez do sistema, da eficiência espectral (SE) e da eficiência energética (EE). Atualmente na era do pós-5G, os esquemas de "Multiple Input, Multiple Output" (MIMO) baseados em modulações espaciais generalizadas (GSM) bem como noutras modulações de índices (IM), têm sido amplamente considerados como potenciais técnicas candidatas para as redes sem fios. Esta dissertação tem como objetivo desenhar e estudar um sistema MIMO p
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6

Peng, Yao-hsien, and 彭耀賢. "Low-Complexity MIMO Detectors for High-Rate Spatial Multiplexing Aided Generalized Spatial Modulation." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/a334q5.

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碩士<br>國立中山大學<br>通訊工程研究所<br>106<br>Spatial-Multiplexing aided Generalized Spatial Modulation (SMx-GSM) is essentially a combination of Vertical Bell Labs Layered Space-Time and Generalized Spatial Modulation (GSM) to achieve a high transmission rate technology. In transmitter, the transmit antennas are divided into several groups and each group use GSM technique. Therefore, we don’t need a lot of Radio Frequency chain to transmit signal and will not cause serious inter-channel interference. Compare to the conventional GSM, we can implement high transmission rate system by using the characterist
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7

Naresh, Yalagala. "On Media-Based Modulation for Wireless Communications." Thesis, 2019. https://etd.iisc.ac.in/handle/2005/5038.

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Traditionally, symbols chosen from complex modulation alphabets such as QAM and PSK are used to convey information bits, and complex fades introduced by the channel are viewed as detrimental effects that cause amplitude and phase distortion to the transmitted symbols. An alternative and interesting approach is to consider the complex channel fade coefficients themselves to constitute a modulation alphabet (referred to as `channel alphabet'). An example of this approach is a recently proposed `media-based modulation (MBM)' scheme, which uses digitally controllable parasitic elements (called as
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8

Fang, Chieh-wei, and 方捷暐. "Precoder Design for Generalized Spatial Modulation in Multiple-Input Multiple-Output Systems." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/39518152209902577691.

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碩士<br>國立中山大學<br>通訊工程研究所<br>103<br>The generalized spatial modulation (GSM) is developed as a promising modulation scheme which effectively compromises the hardware complexity and the spectral efficiency in the multiple-input and multiple-output (MIMO) systems. In this paper, we further propose a precoding design for improving the performance of GSM-MIMO systems. We first formulate precoding design as an optimization of which the worst-case minimum free-distance can be maximized. As well know, the free-distance is the critical metric in evaluating the performance of the maximum likelihood (ML)
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9

湯凱傑. "Generalized Spatial Modulation Design with Massive MIMO System for next Generation Communications." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/26274747610563728203.

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碩士<br>國立清華大學<br>通訊工程研究所<br>103<br>The concept of Generalized Spatial modulation (GSM) has been proposed as a promising architecture for low complexity massive MIMO systems. The GSM systems activates only small number of transmit antennas at a symbol time which simply the complexity in implementation. Different selection of the activating antennas patterns change the average symbol error rate (SER) performance, however the optimal selection of the activating antenna patterns is an NP hard problem due to the complicated connection in the universe of antenna patterns set. Through [1] has proposed
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10

Li, I.-Hsueh, and 李易學. "Low-complexity Generalized Spatial Modulation Schemes Using Codeword-assisted Massive MIMO Detectors." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/88059830106608397625.

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碩士<br>國立清華大學<br>電機工程學系<br>104<br>Massive multiple-input multiple-output system, has many advantages for wireless communication system, has higher data rate and accommodate more users. Due to generalized spatial modulation can effectively reduce hardware complexity and improve the spectral efficiency of multiple-input multiple-output system, it is a modulation method whitch combines the combination of transmit antennas and digital modulation as a transmission codeword and has been widely discussed in recent years. Nowadays, there are a lot of discussions about the hard-decision detections of ge
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11

Chang, Yueh-Lun, and 張岳綸. "Low-Complexity ML and Near-ML Detector Designs for Generalized Spatial Modulation." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/gbfdd5.

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碩士<br>國立中山大學<br>通訊工程研究所<br>107<br>Generalized spatial modulation (GSM) is a novel multiple-input-multiple-out (MIMO) technique, in which only several transmit antennas are activated in each time slot. Although the maximum likelihood (ML) detector is able to achieve the optimal performance, exhaustive search leads to computational complexity that is difficult to handle. In this paper, a search method called A-star algorithm is adopted, which uses a special heuristic function to directly remove some obviously poor paths. It can have lower complexity without losing performance. However, to determ
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12

Datta, Tanumay. "Low-Complexity Receiver Algorithms in Large-Scale Multiuser MIMO Systems and Generalized Spatial Modulation." Thesis, 2013. http://etd.iisc.ac.in/handle/2005/3429.

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Multi-antenna wireless systems have become very popular due to their theoretically predicted higher spectral efficiencies and improved performance compared to single-antenna systems. Large-scale multiple-input multiple-output (MIMO) systems refer to wireless systems where communication terminals employ tens to hundreds of antennas to achieve in-creased spectral efficiencies/sum rates, reliability, and power efficiency. Large-scale multi-antenna systems are attractive to meet the increasing wireless data rate requirements, without compromising on the bandwidth. This thesis addresses key signal
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13

Datta, Tanumay. "Low-Complexity Receiver Algorithms in Large-Scale Multiuser MIMO Systems and Generalized Spatial Modulation." Thesis, 2013. http://etd.iisc.ernet.in/2005/3429.

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Multi-antenna wireless systems have become very popular due to their theoretically predicted higher spectral efficiencies and improved performance compared to single-antenna systems. Large-scale multiple-input multiple-output (MIMO) systems refer to wireless systems where communication terminals employ tens to hundreds of antennas to achieve in-creased spectral efficiencies/sum rates, reliability, and power efficiency. Large-scale multi-antenna systems are attractive to meet the increasing wireless data rate requirements, without compromising on the bandwidth. This thesis addresses key signal
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14

Lopes, Hugo André Pontes. "Spatial modulations for green heterogeneous networks." Master's thesis, 2016. http://hdl.handle.net/10071/12948.

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A rápida evolução dos sistemas de telecomunicações culminou numa necessidade cada vez mais crescente por redes que permitam elevados débitos. Associado a esse throughput elevado está o custo energético que gradualmente torna os sistemas pouco eficientes energeticamente. As modulações espaciais generalizadas (Generalized Spatial Modulation -GSM) surgem da necessidade de criar comunicações mais “verdes”, permitindo obter melhores eficiências energéticas através da redução do número de cadeias de blocos radio-frequência (RF) utilizadas no emissor. O estudo apresentado neste trabalho preten
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15

Chang, Liang Kai, and 張量凱. "Generalized Spatial Modulation with Massive MIMO over mmWave Channel for Next Generation Wireless Communication Systems." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/styc4g.

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16

Lin, Ta-Wei, and 林大為. "Research on Generalized Spatial Modulation for Orthogonal Frequency Division Multiplexing and Single Carrier Frequency Division Multiple Access." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/akwphw.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>107<br>Spatial Modulation(SM) is one of the most adopted Multiple-Input Multiple-Output(MIMO) techniques in recent years. Its characteristics are only activating one single antenna at the same time, antenna index and transmitted symbol and both being used by the transmission bit. The intention is to increase the spectral efficiency and energy efficiency, there are many other MIMO techniques have been proposed based on the same concept, such as Generalized Spatial Modulation(GSM), Space Shift Keying(SSK), Space Time Shift Keying(STSK) and so on. Generalized Spatial M
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17

Lakshmi, Narasimha T. "Efficient Transceiver Techniques for Massive MIMO and Large-Scale GSM-MIMO Systems." Thesis, 2015. http://etd.iisc.ac.in/handle/2005/3953.

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Multi-antenna wireless communication systems that employ a large number of antennas have recently stirred a lot of research interest. This is mainly due to the possibility of achieving very high spectral efficiency, power efficiency, and link reliability in such large-scale multiple-input multiple-output (MIMO) systems. An emerging architecture for large-scale multiuser MIMO communications is one where each base station (BS) is equipped with a large number of antennas (tens to hundreds of antennas) and the user terminals are equipped with fewer antennas (one to four antennas) each. The backhaul co
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18

Lakshmi, Narasimha T. "Efficient Transceiver Techniques for Massive MIMO and Large-Scale GSM-MIMO Systems." Thesis, 2015. http://etd.iisc.ernet.in/2005/3953.

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Multi-antenna wireless communication systems that employ a large number of antennas have recently stirred a lot of research interest. This is mainly due to the possibility of achieving very high spectral efficiency, power efficiency, and link reliability in such large-scale multiple-input multiple-output (MIMO) systems. An emerging architecture for large-scale multiuser MIMO communications is one where each base station (BS) is equipped with a large number of antennas (tens to hundreds of antennas) and the user terminals are equipped with fewer antennas (one to four antennas) each. The backhaul co
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19

Gonçalves, Carolina Loureiro. "Simulação a nível de sistemas 5G através da utilização de ondas milimétricas." Master's thesis, 2021. http://hdl.handle.net/10071/23654.

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Devido à necessidade de atender aos requisitos associados ao mercado móvel cada vez mais exigente, a quinta geração (5G) de comunicações sem fio é caracterizada por proporcionar alta eficiência espectral (SE) e elevada eficiência energética (EE). Neste enquadramento, surgem tecnologias fundamentais para redes de próxima geração, como os sistemas massivos com múltiplas entradas e múltiplas saídas (M-MIMO) baseados em modulação espacial generalizada (GSM), a qual constitui um caso específico de modulação de índices (IM). Nestes sistemas, torna-se possível a utilização de ondas milimétricas (mmW
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