[PDF] Top 20 An Enhanced Multiple Random Access Scheme for Satellite Communications

... Figure 5 depicts the performance curves in terms of packet error rate PER of this turbo code in the 3 cases: a the 3 bursts are on clean slots, b the 3 bursts are in collision with signa[r] ... Voir le document complet

... HARQ scheme, that transmits the same number of bits at each transmission without any knowledge about the global statistics of the chan- nel; the second one is an enhanced HARQ technique, which takes ... Voir le document complet

... of multiple superimposed signals and to achieve performance close to the perfect knowledge ...evaluated for a network coded diversity protocol ...used an EM based channel estimation method and ... Voir le document complet

... of an enhanced channel estimation technique combining estimation using an autocorrelation based method and the Expectation- Maximization algorithm integrated in a joint estimation and decoding ... Voir le document complet

... In the following, we consider a system with two users (User 1 and User 2) transmitting their packets to a receiver node R during the same time slot T S1, over two different channels h1 and h2 respectively (See Fig. 2). ... Voir le document complet

... mance for a unique traffic scenario defined by the 3GPP in ...proposes an analytical framework to evaluate the performance of static ...that, for given ACB parameters, the transmission reliability ... Voir le document complet

... recent random access ...proposed an improved channel estimation scheme that combines EM algorithm with autocorrelation estimation and pilot symbol assisted ...estimation scheme we have ... Voir le document complet

... packet for a better chance of decoding thanks to a higher SNIR (Signal to Noise plus Interference ...used, an association step shall follow the signal combination ... Voir le document complet

... efficient communications for Internet access, television and ...telephony. For a long time, reservation resources of Demand Assignment Multiple Access (DAMA) techniques have been ... Voir le document complet

... packet for a better chance of decoding thanks to a higher SNIR (Signal to Noise plus Interference ...used, an association step shall follow the signal combination ... Voir le document complet

... documents using type X method to address type Y problem'. This can also be formulated as “get me records where method X is used to cure symptom Y'. The studies which worked on texts in the biomedical field used machine ... Voir le document complet

... Our scheme aims at providing the DO with the capacity of defining the access rights for each of his data resource (file, directory, ...cific access control ...to access certain ... Voir le document complet

... Keywords—NB-IoT, Satellite Communications, LEO, GEO, Physical Layer, Doppler ...safety for the industry and ...designed for individuals, businesses and industries is spurring the rapid ... Voir le document complet

... Terms—Multiple access systems, random permutations, turbo receivers, multipath channels, multiple-access interference ...Code-Division Multiple-Access (DS-CDMA) ...from ... Voir le document complet

... HAL Id: pastel-00001160 https://pastel.archives-ouvertes.fr/pastel-00001160 Submitted on 30 Mar 2005 HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci- entific ... Voir le document complet

... number of correlated users, a large degree of computa- tional simplification of the joint detector is realized; 2) the hierarchical structure of MAI experienced by each[r] ... 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

... suitable for real time traffic, a new transport protocol for multimedia applications, Datagram Congestion Control Protocol (DCCP), has been proposed by IETF ...driver for having congestion control in ... Voir le document complet

... investigation for use in third generation MRAM, including: voltage-controlled anisotropy (VCA), voltage-controlled magnetism (VCM)[9]–[12], spin Hall effect (SHE) and spin- orbit torque switching ...potential ... Voir le document complet

... position. An example is the channel estimation for aeronautical communications via a satellite ...developed for this sparse channel exhibits better performances in terms of Mean Square ... Voir le document complet