Measurement‐based analysis of cross‐layer adaptation for MIMO in mobile urban environments

Willink, T.J.; Colman, G.W.K.

doi:10.1049/iet-com.2012.0752

Cited by 4 publications

(4 citation statements)

References 23 publications

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“…If the phase information is to be used in MIMO to estimate the K -factor, one must first estimate the phase variations of the dominant component resulting from antenna movement of the virtual array from those due to the diffuse components. This has been reported in practice [29] for straight line movement but is very complex for a MIMO geometry with body worn antennas and a circular BS array such as here tested.…”

Section: ) Characterization Of the Ricean Factormentioning

confidence: 83%

Empirical Rates Characterization of Wearable Multi-Antenna Terminals for First-Responders

et al. 2019

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Empirical characterization of the achievable rates for a wearable multi-antenna terminal shows the potential advantages of deploying a large number of antennas at the user end. We focus on the challenges and requirements of the broadband communication in future emergency communication systems, specifically addressing the outdoor-to-indoor propagation scenario, where the first responder is within an underground area such as a garage or basement. The measurement campaign undertaken characterizes the flat fading multiple-input multiple-output (MIMO) channel matrices at 3.5 GHz for a maximum of M = 30 antennas deployed at the base station (BS), and N = 12 wearable antennas at the user. The achievable rates are obtained for two transmission strategies that account for the different levels of channel knowledge. In both cases, all the MIMO processing is carried out at the BS. INDEX TERMS Wearables, massive MIMO, textile antenna technology, channel measurements, emergency communications, PMR.

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Section: ) Characterization Of the Ricean Factormentioning

confidence: 83%

Empirical Rates Characterization of Wearable Multi-Antenna Terminals for First-Responders

et al. 2019

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“…If the phase information is to be used in MIMO to estimate the K-factor, one must first estimate the phase variations of the dominant component resulting from the transmit antenna movement of the virtual array from those due to the diffuse components. This phase estimation has been reported in practice [81] for straight line movement but is very complex for a MIMO geometry with body worn antennas and a circular BS array such as here tested. Thus, given the difficulty of using phase information with body worn antennas, in this Thesis from now on, the amplitude-based estimatorK A , which is defined in expressions (3.26) and (3.27), will be employed.…”

Section: Characterization Of the K-factormentioning

confidence: 91%

“…To do it, it will be necessary to perform specific measurement campaigns considering specific movement geometries (i.e. straight line) as the one consider in [81].…”

Section: Future Directionsmentioning

confidence: 99%

Feasibility of a wearable textile antenna hub based on massive MIMO systems

Bardera

Sanchez-Fernandez

Talegon

et al. 2016

2016 18th Mediterranean Electrotechnical Conference (MELECON)

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Comenzaré agradeciendo a mis padres y a mi hermana su apoyo incondicional a lo largo de mi vida, y en especial durante esta etapa de mis estudios de doctorado. Gracias por estar en los momentos buenos y en los no tan buenos, gracias por vuestras palabras dé animo y alegraros de cada uno de mis logros personales.Agradecer también a otro de mis apoyos fundamentales durante esta etapa, mis compañeros y amigos, con los que tantos buenos momentos he compartido, entre ellos nuestros coffees diarios que tanto voy a echar de menos. Pablo, gracias por tus consejos y paciencia. Lore, siempre dispuesta a escuchar y ayudar, gracias. Iratxe, no sólo compartiste conmigo la primera etapa de mis estudios en la que fuiste un gran apoyo, sino también nuestras clases de zumba o nuestras meriendas dulces. Porúltimo, pero no menos importantes, mis compañeros de despacho y de comidas diarias, especialmente Juan Carlos, Alberto y Borja.Durante mi estancia en Chile, agradecer a todos por el trato excepcional que me dieron, pero especialmente a Manolo al que aprecio mucho y con el que lo pasé genial. Gracias por hacerme ver que es posible seguir viendo la parte positiva de las cosas aunque no siempre sea fácil.A Eva, por su disposicíon para ayudarme con el diseño de antenas, así como sus palabras deánimo y consejos cuando las cosas no parecían fáciles.Quizás me olvido de mencionar a mucha gente,Ángel, Jesús, Aarón, ... personas de distintos lugares que siempre han estado ahí y que de alguna manera, también me han apoyado durante esta etapa.Finalmente, a mi tutora, Mati, tengo que agradecerle su paciencia, apoyo y comprensión durante estos años, así como todas las oportunidades que me ha dado, entre ellas participar en proyectos de investigación enriquecedores, así como realizar estancias internacionales que puedo decir que me han enriquecido mucho como persona.

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“…Alamouti multi-input-multi-output orthogonal frequency division multiplexing (MIMO-OFDM) systems have drawn significant interest because of their potential in achieving a high data rate, combating the fading effect in wireless communications and providing reliable performance of diversity [1][2][3][4]. However, the Alamouti MIMO-OFDM systems suffer from high peak-to-average power ratio (PAPR).…”

Section: Introductionmentioning

confidence: 99%

Peak‐to‐average power ratio reduction in Alamouti multi‐input–multi‐output orthogonal frequency division multiplexing systems without side information using phase offset based‐partial transmit sequence scheme

Jiang

Guan

et al. 2014

IET Communications

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Measurement‐based analysis of cross‐layer adaptation for MIMO in mobile urban environments

Cited by 4 publications

References 23 publications

Empirical Rates Characterization of Wearable Multi-Antenna Terminals for First-Responders

Empirical Rates Characterization of Wearable Multi-Antenna Terminals for First-Responders

Feasibility of a wearable textile antenna hub based on massive MIMO systems

Peak‐to‐average power ratio reduction in Alamouti multi‐input–multi‐output orthogonal frequency division multiplexing systems without side information using phase offset based‐partial transmit sequence scheme

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