[PDF] Top 20 Improved channel estimation for interference cancellation in random access methods for satellite communications

... coding, Channel estimation, Expectation-maximization algorithms ...of random access (RA) methods in satel- lite communications has been the center of attention of many ... Voir le document complet

... coding, Channel estimation, Expectation-maximization algorithms ...of random access (RA) methods in satel- lite communications has been the center of attention of many ... Voir le document complet

... of satellite communications the main weak- ness of traditional random access (RA) methods like Aloha [1] and Slotted Aloha [2] is destructive packet collisions and retransmission ... Voir le document complet

... of satellite communications the main weak- ness of traditional random access (RA) methods like Aloha [1] and Slotted Aloha [2] is destructive packet collisions and retransmission ... Voir le document complet

... adopted in order to perform the interference cancellation ...Initially in CRDSA, multiple preambles were used in order to estimate the channel, independently from the interfering ... Voir le document complet

... 1 Satellite communication system example with a bent pipe ...fragments for potential synchro- nization errors, and a .... In addition, it has been shown in 20 that 3GPP turbo coding presents ... Voir le document complet

... standard. Satellite television was standardized in the DVB-S (DVB-Satellite) [42197], which has been later improved in the DVB-S2 (Second Generation) ...flexibility in the ... Voir le document complet

... – In this paper, we develop a new algorithm suited to channel estimation when a small number of paths is considered and when some channel parameters can be estimated based on the ...the ... Voir le document complet

... concentration in- ...that, in the recurrent case, we recover, up to the logarithmic factor, this usual rate of ...Indeed, in this regime, the walk visits every site infinitely often and it allows to ... Voir le document complet

... The current DVB-S2/RCS specifications have also been implemented with MF- TDMA characteristics [4, 5]. These modules attempt to be as close as possible to the real systems and the layout of their components, which make ... Voir le document complet

... L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignemen[r] ... Voir le document complet

... lies in steps (ii) and (iii) of the ...can in general not be treated through mere residue ...an in-depth analysis of the so-called branch-cuts, corresponding to the points of discontinuity of the ... Voir le document complet

... three methods can significantly improve the results. For several test folds and all the ground truth data in each test fold, we compare the relative prediction error made by Nighttime Light , Land ... Voir le document complet

... Pour cela on suppose que les filtres d’émission et de récep- tion sont connus et on définit un canal équivalent correspondant à la convolution de ces filtres avec la réponse impulsionnelle du canal multitrajets. C’est ce ... Voir le document complet

... Résumé Dans cette thèse, nous nous intéressons à la microscopie DIC (Differential interference contrast) en couleur. L’imagerie DIC est reconnue pour produire des images à haut contraste et à haute résolution ... Voir le document complet

... that in terms of positioning accuracy, the Power Inversion outperforms all other techniques for every configuration in the white noise environment; while the Maximum Aperture nullformer produces most ... Voir le document complet

... statistical estimation, small-sample estimation, norm estimation, condition number estimation ...is in principle straightforward to compute. In many applications, however, one is ... Voir le document complet

... performed in the frequency domain using for instance the well known Fourier ...Previously, in Chapter 2 , we have stated that Side-channels are preferred to be performed in the time domain ... Voir le document complet

... performance for five different parameter settings with the algorithm from [4] on an orchestra recording fea- turing 21 microphones with up to 11 voices 2 ,3 ...featuring interference in all ... Voir le document complet

... Astronomical satellites: used for the observation of distant planets, galaxies, and other outer space objects. Navigational satellites [ GPS , Galileo , Beidou ]: they use radio time signals transmitted to enable ... Voir le document complet