Relevant bibliographies by topics / Quadrature Spatial Modulation

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Quadrature Spatial Modulation'

Author: Grafiati
Published: 6 September 2023

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Journal articles on the topic "Quadrature Spatial Modulation"

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Mesleh, Raed, Salama S. Ikki, and Hadi M. Aggoune. "Quadrature Spatial Modulation." IEEE Transactions on Vehicular Technology 64, no. 6 (June 2015): 2738–42. http://dx.doi.org/10.1109/tvt.2014.2344036.

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Mohaisen, Manar, and Saetbyeol Lee. "Complex Quadrature Spatial Modulation." ETRI Journal 39, no. 4 (August 2017): 514–24. http://dx.doi.org/10.4218/etrij.17.0116.0933.

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Mesleh, Raed, Saud Althunibat, and Abdelhamid Younis. "Differential Quadrature Spatial Modulation." IEEE Transactions on Communications 65, no. 9 (September 2017): 3810–17. http://dx.doi.org/10.1109/tcomm.2017.2712720.

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Murtala, Sheriff, Nishal Muchena, Tasnim Holoubi, Manar Mohaisen, and Kang-Sun Choi. "Parallel Complex Quadrature Spatial Modulation." Applied Sciences 11, no. 1 (December 31, 2020): 330. http://dx.doi.org/10.3390/app11010330.

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In this paper, we propose a new multiple-input multiple-output (MIMO) transmission scheme, called parallel complex quadrature spatial modulation (PCQSM). The proposed technique is based on the complex quadrature spatial modulation (CQSM) to further increase the spectral efficiency of the communication system. CQSM transmits two different complex symbols at each channel use. In contrast with CQSM, the new transmission scheme splits the transmit antennas into groups, and modulates the two signal symbols using the conventional CQSM before transmission. Based on the selected modulation order and the number of possible groups that can be realized, the incoming bits modulate the two signal symbols and the indices of the transmit antennas in each group. We demonstrated that while the complexity and performance of the proposed scheme is the same as that of CQSM, the number of required transmit antennas is significantly reduced. The proposed PCQSM achieves such a benefit without requiring any additional radio frequency (RF) chains. The results obtained from Monte Carlo simulation showed that at a Bit Error Rate (BER) of 10−4, the performance of the PCQSM with two antenna groups closely matches that of CQSM, and outperformed quadrature spatial modulation (QSM) and parallel quadrature spatial modulation (PQSM) by over 0.7 dB. As the number of antenna groups increased to 4, the BER performance of PCQSM with reduced number of transmit antenna and modulation order matches that of QSM. The BER of the proposed scheme using maximum likelihood (ML) receiver is also analyzed theoretically and compared with the BER obtained via simulations.
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Celik, Yasin. "Fully Improved Quadrature Spatial Modulation." Arabian Journal for Science and Engineering 46, no. 10 (February 27, 2021): 9639–47. http://dx.doi.org/10.1007/s13369-020-05296-7.

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Wang, Lei, Zhigang Chen, Zhengwei Gong, and Ming Wu. "Diversity-Achieving Quadrature Spatial Modulation." IEEE Transactions on Vehicular Technology 66, no. 12 (December 2017): 10764–75. http://dx.doi.org/10.1109/tvt.2017.2731989.

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Yigit, Zehra, Ertugrul Basar, and Raed Mesleh. "Trellis coded quadrature spatial modulation." Physical Communication 29 (August 2018): 147–55. http://dx.doi.org/10.1016/j.phycom.2018.05.007.

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Mohaisen, Manar. "Generalized Complex Quadrature Spatial Modulation." Wireless Communications and Mobile Computing 2019 (April 28, 2019): 1–12. http://dx.doi.org/10.1155/2019/3137927.

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Spatial modulation (SM) is a multiple-input multiple-output (MIMO) system that achieves a MIMO high spectral efficiency while maintaining the transmitter computational complexity and requirements as low as those of the single-input systems. The complex quadrature spatial modulation (CQSM) builds on the QSM scheme and improves the spectral efficiency by transmitting two signal symbols at each channel use. In this paper, we propose two generalizations of CQSM, namely, generalized CQSM with unique combinations (GCQSM-UC) and with permuted combinations (GCQSM-PC). These two generalizations perform close to CQSM or outperform it, depending on the system parameters. Also, the proposed schemes require much less transmit antennas to achieve the same spectral efficiency of CQSM, for instance, assuming 16-QAM, GCQSM-PC, and GCQSM-UC require 10 and 15 transmit antennas, respectively, to achieve the same spectral of CQSM which is equipped with 32 antennas.
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Zhao, Wen, Panmei Liu, and Fuchun Huang. "Constellation Design for Quadrature Spatial Modulation." IOP Conference Series: Earth and Environmental Science 252 (July 9, 2019): 052097. http://dx.doi.org/10.1088/1755-1315/252/5/052097.

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Li, Jun, Miaowen Wen, Xiang Cheng, Yier Yan, Sangseob Song, and Moon Ho Lee. "Generalized Precoding-Aided Quadrature Spatial Modulation." IEEE Transactions on Vehicular Technology 66, no. 2 (February 2017): 1881–86. http://dx.doi.org/10.1109/tvt.2016.2565618.

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Dissertations / Theses on the topic "Quadrature Spatial Modulation"

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Abu-alhiga, Rami. "Novel feedback and signalling mechanisms for interference management and efficient modulation." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4632.

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In order to meet the ever-growing demand for mobile data, a number of different technologies have been adopted by the fourth generation standardization bodies. These include multiple access schemes such as spatial division multiple access (SDMA), and efficient modulation techniques such as orthogonal frequency division multiplexing (OFDM)-based modulation. The specific objectives of this theses are to develop an effective feedback method for interference management in smart antenna SDMA systems and to design an efficient OFDM-based modulation technique, where an additional dimension is added to the conventional two-dimensional modulation techniques such as quadrature amplitude modulation (QAM). In SDMA time division duplex (TDD) systems, where channel reciprocity is maintained, uplink (UL) channel sounding method is considered as one of the most promising feedback methods due to its bandwidth and delay efficiency. Conventional channel sounding (CCS) only conveys the channel state information (CSI) of each active user to the base station (BS). Due to the limitation in system performance because of co-channel interference (CCI) from adjacent cells in interference-limited scenarios, CSI is only a suboptimal metric for multiuser spatial multiplexing optimization. The first major contribution of this theses is a novel interference feedback method proposed to provide the BS with implicit knowledge about the interference level received by each mobile station (MS). More specifically, it is proposed to weight the conventional channel sounding pilots by the level of the experienced interference at the user’s side. Interference-weighted channel sounding (IWCS) acts as a spectrally efficient feedback technique that provides the BS with implicit knowledge about CCI experienced by each MS, and significantly improves the downlink (DL) sum capacity for both greedy and fair scheduling policies. For the sake of completeness, a novel procedure is developed to make the IWCS pilots usable for UL optimization. It is proposed to divide the optimization metric obtained from the IWCS pilots by the interference experienced at the BS’s antennas. The resultant new metric, the channel gain divided by the multiplication of DL and UL interference, provides link-protection awareness and is used to optimize both UL and DL. Using maximum capacity scheduling criterion, the link-protection aware metric results in a gain in the median system sum capacity of 26.7% and 12.5% in DL and UL respectively compared to the case when conventional channel sounding techniques are used. Moreover, heuristic algorithm has been proposed in order to facilitate a practical optimization and to reduce the computational complexity. The second major contribution of this theses is an innovative transmission approach, referred to as subcarrier-index modulation (SIM), which is proposed to be integrated with OFDM. The key idea of SIM is to employ the subcarrier-index to convey information to the receiver. Furthermore, a closed-form analytical bit error ratio (BER) of SIM OFDM in Rayleigh channel is derived. Simulation results show BER performance gain of 4 dB over 4-QAM OFDM for both coded and uncoded data without power saving policy. Alternatively, power saving policy maintains an average gain of 1 dB while only using half OFDM symbol transmit power.
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Othman, Rami. "Study of reception techniques for aeronautical telemetry modulations." Thesis, CentraleSupélec, 2019. http://www.theses.fr/2019CSUP0012.

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La télémesure aéronautique est un système utilisé pendant la phase des essais en vol qui consiste à transmettre en temps-réel les données mesurées à bord de l'avion vers une station sol par le biais d'une liaison radiofréquence. Elle est une opération critique visant à surveiller le comportement de l’avion et à garantir la sécurité du pilote. La conception et les performances des émetteurs et des récepteurs ont été améliorées au fil des années mais tout en gardant la même famille de modulation utilisée pour transmettre les données. Ces données sont modulées par une modulation à phase continue (CPM) car cette dernière possède une enveloppe complexe constante, ce qui permet l’emploi des amplificateurs de puissance dans leur régime de saturation sans distordre le signal. Cependant, contrairement aux modulations classiques, la modulation CPM n’est pas une fonction linéaire des symboles transmis, ce qui rend la tâche de la démodulation complexe surtout quand on considère des scenarii assez compliqués tels que la présence des multi trajets ou bien l’emploi d’un système multi-antennes. Dans cette thèse, on se focalise sur une modulation appelée « Shaped Offset Quadrature Phase Shift Keying telemetry group » (SOQPSK-TG) qui commence à être de plus en plus populaire en télémesure aéronautique. Cette modulation appartient à une famille particulière de CPM car elle transmet des symboles ternaires au lieu de binaires. Dans ce travail, nous développons différents algorithmes de réception pour cette modulation en considérant différents scenarii afin de garantir un lien de télémesure permanent. Les solutions proposées offrent des performances attrayantes tout en gardant une complexité raisonnable pour une implémentation en temps-réel
Aeronautical telemetry is a system used during the flight testing phase to monitor the behaviour of the plane by transmitting in real-time the aircraft dynamics from the aircraft to the ground station over a radio-frequency link. It is a critical process that requires highly reliable systems to ensure the pilot's safety. The design and the performance of the transmitting/ receiving equipment have been progressively upgraded over the years, and they mainly rely on continuous phase modulations (CPM) to convey the data. CPM is transmitter friendly because it has a constant complex envelope and therefore power amplifiers can be used at their saturation mode without distorting the signal. However, due to the nonlinear nature of this modulation, it can make the demodulation a hard task especially when considering complex scenarios such as the presence of multipath or the use of multiple antenna transmitters. In this PhD thesis, we focus on shaped offset quadrature phase-shift keying telemetry group (SOQPSK-TG) whose use is getting more and more popular in aeronautical. This modulation belongs to a particular CPM family since it transmits ternary symbols instead of binary ones. In this work, several reception algorithms have been developed for this modulation under different scenarios to ensure the availability of aeronautical telemetry link. These solutions offer excellent power efficiency without prohibitive complexity
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CHANG, SHI-YANG, and 張世揚. "BER Analysis and Precoder Designs for Receive Quadrature Spatial Modulation Systems." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/wex9un.

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碩士
國立中正大學
通訊工程研究所
106
Receive Quadrature Spatial Modulation Systems (RQSM) which considers the amalgamation of Receive Spatial Modulation (RSM) and Quadrature Spatial Modulation (QSM) inherits most advantages of both RSM and QSM. More explicitly, in RQSM, the transmitted symbol is decomposed to real and imaginary parts. Because of the domain extension, the data rate of the system is increased compared with RSM. After preprocessing the transmitted signal at transmitter side, RQSM has lower complexity at receiver side compared with QSM. In the first part of this thesis, we use the union-bound approach to derive the analytical average bit error probability of our RQSM scheme under zero forcing cri- terion. In the second part, we propose a new precoder design, which is applicable to the RSM, GPSM and our RQSM schemes. Finally, we verify the proposed de- signs using computer simulation. Both the numerical and analytical results were provided.
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Chi-JenChen and 陳麒任. "Decision Feedback Equalizers for Spatial Multiplexing Filter Bank Multicarrier with Offset Quadrature Amplitude Modulation." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/3472cf.

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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 Channel Interference (ICI) and Inter Symbol Interference (ISI). Generalised Spatial Modulation (GSM) and Multiple Active Spatial Modulation (MASM) techniques were developed to increase the spectral efficiency of SM by increasing the number of RF chains. In GSM, the same modulation symbol transmits on different antennas hence, it avoids ISI. In MASM, multiple symbols are transmitted on different antenna con guration. A modi ed version of SM technique called Quadrature Spatial Modulation (QSM) uses both in-phase and quadrature dimensions to transmit the data symbol in one time instant. Hence, QSM enhance the spectral efficiency over SM. Recently, Generalised QSM (GQSM) scheme was developed to increase spectral efficiency by grouping the transmit antennas according to QSM principle. We propose a modi ed Generalised QSM (mGQSM) scheme without antenna grouping and we use multiple RF chains to enhance the spectral efficiency. The proposed scheme provides ex- tra one bit per channel use (bpcu) spectral efficiency over GQSM scheme with the constraint of flog2 Nt Nrf g 0:5, where f g denotes the fractional part of the decimal value, Nt denotes number of transmit antennas, and Nrf denotes number of RF chains. In mGQSM system, multiple data symbols are divided into real and imaginary parts and these parts are transmitted as in-phase and quadrature components by selecting any possible antenna activation patterns available in mGQSM, resulting in the choice of antenna activation patterns being doubled in mGQSM compared to GQSM which yields the extra one bpcu spectral efficiency over GQSM. Using the ML detection algorithm, we study the performance via numerical simulations using half code rate convolutional encoder at the transmitter and Viterbi decoding algorithm at the receiver to estimate the transmitted bits. We compute the computational complexity of ML- decoding in terms of real valued multiplications and introduce a variant of mGQSM called Reduced Codebook mGQSM (RC-mGQSM) to reduce the complexity by decreasing the spectral efficiency. In summary, a novel scheme mGQSM is proposed which improves the spectral efficiency of known scheme, GQSM by one bpcu.
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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 para comunicações multiutilizador integrando símbolos GSM e símbolos de modulação de índices generalizada no espaço-frequência (GSFIM). Numa primeira parte estuda-se um sistema MIMO multiutilizador, em que uma estação base (BS) transmite símbolos GSM pré-codificados para vários recetores. Na abordagem GSM adotada, múltiplas antenas transmitem simultaneamente diferentes símbolos M-QAM de alto nível, até M =1024. O pré-codificador é desenvolvido de modo a remover interferências entre utilizadores enquanto um algoritmo iterativo baseado no "alternating direction method of multipliers" (ADMM) é aplicado no recetor para realizar a deteção GSM de um único utilizador. Os resultados mostram que a abordagem GSM MU-MIMO apresentada é capaz de explorar eficazmente um grande número de antenas de transmissão implantadas no transmissor e também proporcionar ganhos de desempenho sobre esquemas convencionais MU-MIMO com eficiências espectrais idênticas. Numa segunda parte, introduz-se uma nova dimensão (para além do espaço), a frequência. Estuda-se assim o comportamento dos recetores MMSE e OB-MMSE, num sistema MIMO baseado em GSFIM. Os resultados mostram que o sistema GSFIM MUMIMO explora de forma competente as comunicações com grande número de antenas/sub-portadoras, apresentando melhores desempenhos quando usada com um recetor OB-MMSE.
Considering the technological advances of the last decades, the next generation of wireless communications is expected to follow the trend of a significant increase in system robustness, spectral efficiency (SE) and energy efficiency (EE). Today in the post5G era, Multiple Input, Multiple Output (MIMO) schemes based on generalised spatial modulations (GSM) as well as other index modulations (IM) have been widely considered as potential candidate techniques for wireless networks. This dissertation aims to design and study a MIMO system for multi-user communications integrating GSM symbols and generalised space-frequency index modulation (GSFIM) symbols. In a first part, a multi-user MIMO system is studied, in which a base station (BS) transmits pre-coded GSM symbols to several receivers. In the GSM approach adopted, multiple antennas transmit different high-level M-QAM symbols simultaneously, up to M =1024. The precoder is designed to remove interference between users while an iterative algorithm based on the alternating direction method of multipliers (ADMM) is applied to the receiver to perform single user GSM detection. The results show that the GSM MU-MIMO approach presented is capable of effectively exploiting a large number of transmission antennas deployed on the transmitter and also provides desempenho gains over conventional MU-MIMO schemes with identical spectral efficiencies. In a second part, a new dimension (beyond space) is introduced, frequency. The behaviour of MMSE and OB-MMSE receivers in a GSFIM-based MIMO system is thus studied. The results show that the GSFIM MU-MIMO system competently exploits communications with large numbers of antennas/sub-carriers and performs better when used with an OB-MMSE receiver.
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Book chapters on the topic "Quadrature Spatial Modulation"

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Gunde, Kiran, and Anuradha Sundru. "Fully Quadrature Spatial Modulation Performance with Imperfect Channel Information." In Proceedings of Second International Conference on Computational Electronics for Wireless Communications, 527–35. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6661-3_48.

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Gunde, Kiran, and Anuradha Sundru. "Modified Generalised Quadrature Spatial Modulation Performance over Weibull Fading Channel." In Algorithms for Intelligent Systems, 79–88. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-3246-4_7.

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Asha, S., Vishnu Vardhan Gudla, and Vinoth Babu Kumaravelu. "Performance Comparison of Transmit Antenna Selection Schemes for Quadrature Spatial Modulation." In Advances in Automation, Signal Processing, Instrumentation, and Control, 3235–45. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-8221-9_301.

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Conference papers on the topic "Quadrature Spatial Modulation"

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Hussein, Hany S., and Mohamed Elsayed. "Fully-Quadrature Spatial Modulation." In 2018 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom). IEEE, 2018. http://dx.doi.org/10.1109/blackseacom.2018.8433718.

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Vo, Binh, and Ha H. Nguyen. "Improved Quadrature Spatial Modulation." In 2017 IEEE 86th Vehicular Technology Conference (VTC-Fall). IEEE, 2017. http://dx.doi.org/10.1109/vtcfall.2017.8288027.

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Yu, Ping, Jianzhong Mao, and Fuchun Huang. "Spatial Diversity-Achieving Quadrature Spatial Modulation." In 2018 IEEE International Conference on Automation, Electronics and Electrical Engineering (AUTEEE). IEEE, 2018. http://dx.doi.org/10.1109/auteee.2018.8720812.

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Yigit, Zehra, and Ertugrul Basar. "Space-time quadrature spatial modulation." In 2017 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom). IEEE, 2017. http://dx.doi.org/10.1109/blackseacom.2017.8277677.

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Gunde, Kiran, and K. V. S. Hari. "Modified Generalised Quadrature Spatial Modulation." In 2019 National Conference on Communications (NCC). IEEE, 2019. http://dx.doi.org/10.1109/ncc.2019.8732234.

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Celik, Yasin, and Sultan Aldirmaz Colak. "Hardware-Aware Quadrature Spatial Modulation." In 2022 30th Signal Processing and Communications Applications Conference (SIU). IEEE, 2022. http://dx.doi.org/10.1109/siu55565.2022.9864964.

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Cogen, Fatih, and Erdogan Aydin. "Hexagonal Quadrature Amplitude Modulation Aided Spatial Modulation." In 2019 11th International Conference on Electrical and Electronics Engineering (ELECO). IEEE, 2019. http://dx.doi.org/10.23919/eleco47770.2019.8990645.

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Vo, Binh T., Ha H. Nguyen, and Hoang D. Tuan. "Constellation Design for Quadrature Spatial Modulation." In 2017 IEEE 86th Vehicular Technology Conference (VTC-Fall). IEEE, 2017. http://dx.doi.org/10.1109/vtcfall.2017.8287934.

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Dong, Rui, Fanggang Wang, Junshan Luo, and Dong Wang. "Quadrature Joint Transmitter-receiver Spatial Modulation." In 2019 11th International Conference on Wireless Communications and Signal Processing (WCSP). IEEE, 2019. http://dx.doi.org/10.1109/wcsp.2019.8928009.

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Muhareb, M. S., A. M. Abu-Hudrouss, and M. T. O. El Astal. "Quadrature spatial modulation for wireless relaying networks." In 2018 International Conference on Innovative Trends in Computer Engineering (ITCE). IEEE, 2018. http://dx.doi.org/10.1109/itce.2018.8316617.

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