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1. Li, Qianrui. Transmission coop?rative et traitement du signal distribu? avec feedback et backhaul limit? : Distributed transmitter cooperation and signal processing with limited feedback and backhaul.

Degree: Docteur es, Electronique et communications, 2016, Paris, ENST

La coop?ration des ?metteurs est consid?r?e comme une approche prometteuse pour limiter les interf?rences dans les r?seaux sans fil ayant une r?utilisation des ressources spectrales tr?s agressive. La coop?ration des ?metteurs permet l'optimisation conjointe de certains param?tres de transmission. Bien que la coop?ration des ?metteurs existe sous diff?rentes formes, une hypoth?se commune est le besoin pour les ?metteurs entrant en coop?ration (i) d?acqu?rir et de partager des informations concernant le canal de propagation ainsi que (ii) d?effectuer une coop?ration fond?e sur les informations diffus?es ? l'?tape pr?c?dente. La conception coordonn?e des matrices de pr?codage et, d?une mani?re encore plus marqu?e, la transmission conjointe ? diff?rents ?metteurs sont des exemples importants de m?thodes de coop?rations pr?sentant ces propri?t?s. L?acquisition et l'?change de l?information de canal ?tant strictement limit?s, il se pose deux questions importantes: (i) Quelle information doit ?tre renvoy?e ou ?chang?e de mani?re ? permettre la coop?ration la plus efficace? (ii) Quelles m?thodes permettent de r?aliser les gains de la coop?ration dans ce contexte de partage limit? et imparfait d?information? Dans cette th?se, nous abordons les deux questions pr?c?dentes. Dans un premier temps, nous consid?rons que chaque ?metteur acquiert une estim?e de canal imparfaite. Dans un second temps, nous ?tudions la conception de techniques de coop?ration efficaces dans une configuration d?information de canal imparfaitement partag?e entre les ?metteurs. Enfin, les futures directions de recherche d?coulant de ces travaux sont pr?sent?es et discut?es.

Transmitter cooperation is considered a promising tool for dealing with interference in wireless networks with an aggressive reuse policy of spectral resources. Although transmitter cooperation comes in many flavors, a recurrent assumption behind proposed methods lies in the need for cooperating devices to (i) acquire, share information pertaining to the propagation channel toward the multiple receivers and (ii) perform cooperation based on the disseminated information in the previous step. This holds true for instance for coordinated beamforming methods and, to an even greater extent, for network-MIMO (Joint Processing coordinated multi-point (JP CoMP) in the long term evolution (LTE) terminology). As feedback and exchange of channel state information (CSI) come at a price in terms of signaling overhead, there arise two important questions: (i) What information should be fed back or exchanged such that the CSI acquired at each transmitter is most informative to perform cooperation? (ii) Which techniques can reap the benefits of cooperation while living with an imperfect channel representation that varies from transmitter to transmitter ? In this thesis, we address both aforementioned questions. We consider first each transmitter acquires an initial imperfect CSI based on limited receivers feedback. For the design of efficient cooperation techniques that copes with the imperfect and…

Advisors/Committee Members: Gesbert, David (thesis director).

Subjects/Keywords: Transmission coop?rative; MIMO; Pr?codage distribu?; Backhaul limit?; Matrice al?atoire; Estimation de canal; Cooperative transmission; MIMO; Distributed precoding; Backhaul limited; Random matrix; Channel estimation

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APA (6th Edition):

Li, Q. (2016). Transmission coop?rative et traitement du signal distribu? avec feedback et backhaul limit? : Distributed transmitter cooperation and signal processing with limited feedback and backhaul. (Doctoral Dissertation). Paris, ENST. Retrieved from http://www.theses.fr/2016ENST0022

Chicago Manual of Style (16th Edition):

Li, Qianrui. “Transmission coop?rative et traitement du signal distribu? avec feedback et backhaul limit? : Distributed transmitter cooperation and signal processing with limited feedback and backhaul.” 2016. Doctoral Dissertation, Paris, ENST. Accessed March 18, 2019. http://www.theses.fr/2016ENST0022.

MLA Handbook (7th Edition):

Li, Qianrui. “Transmission coop?rative et traitement du signal distribu? avec feedback et backhaul limit? : Distributed transmitter cooperation and signal processing with limited feedback and backhaul.” 2016. Web. 18 Mar 2019.

Vancouver:

Li Q. Transmission coop?rative et traitement du signal distribu? avec feedback et backhaul limit? : Distributed transmitter cooperation and signal processing with limited feedback and backhaul. [Internet] [Doctoral dissertation]. Paris, ENST; 2016. [cited 2019 Mar 18]. Available from: http://www.theses.fr/2016ENST0022.

Council of Science Editors:

Li Q. Transmission coop?rative et traitement du signal distribu? avec feedback et backhaul limit? : Distributed transmitter cooperation and signal processing with limited feedback and backhaul. [Doctoral Dissertation]. Paris, ENST; 2016. Available from: http://www.theses.fr/2016ENST0022

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