logo EDITE Esra AYCAN
Identité
Esra AYCAN
État académique
Thèse soutenue le 2016-09-01
Sujet: Alignement d'interférences dans les réseaux de communication hétérogènes
Direction de thèse:
Laboratoire:
Voisinage
Ellipse bleue: doctorant, ellipse jaune: docteur, rectangle vert: permanent, rectangle jaune: HDR. Trait vert: encadrant de thèse, trait bleu: directeur de thèse, pointillé: jury d'évaluation à mi-parcours ou jury de thèse.
Productions scientifiques
oai:hal.archives-ouvertes.fr:hal-01321284
Hierarchical successive stream selection for heterogeneous network interference
International audience
2014 IEEE Wireless Communications and Networking Conference (WCNC) https://hal.archives-ouvertes.fr/hal-01321284 2014 IEEE Wireless Communications and Networking Conference (WCNC), Apr 2014, Istanbul, Turkey. <10.1109/WCNC.2014.6952290>ARRAY(0x7f54710b8178) 2014-04-06
oai:hal.archives-ouvertes.fr:hal-01321326
Improved successive stream selection with quantized channel in heterogeneous networks
International audience
2015 International Symposium on Wireless Communication Systems (ISWCS) https://hal.archives-ouvertes.fr/hal-01321326 2015 International Symposium on Wireless Communication Systems (ISWCS), Aug 2015, Brussels, Belgium. <10.1109/ISWCS.2015.7454418>ARRAY(0x7f5470810ca0) 2015-08-25
oai:hal.archives-ouvertes.fr:hal-01321276
On stream selection for interference alignment in heterogeneous networks
International audience
This paper proposes a stream selection algorithm to deal with the interference and increase the sum capacity in the context of heterogeneous networks where cells of different types coexist. Due to the different transmit powers between the macro and small cells, interference levels are also different. Since the small cells are densely deployed, fully connected interference network between small cells is considered in this paper. The proposed algorithm performs the selection of a stream sequence among a predetermined set of sequences. Those selected sequences are the ones that mostly contribute to the sum rate when performing the exhaustive search. As a consequence, since the search space is reduced, the complexity is significantly decreased. These stream sequences form a regular structure where the first stream is associated to a pico user. Another distinguishing property of the proposed approach is that the stream sequences include at least one stream for each user. When selecting the streams, the channel matrices of the unselected streams are projected orthogonally to the virtual transmit and virtual receive channels of the selected stream in order to align the interference in the null space of these virtual channels. The performance evaluations are carried out by considering different scenarios with different numbers and locations of pico cells. It is shown that the proposed method can significantly reduce the computational complexity while achieving a very close performance to the exhaustive search.
EURASIP Journal on Wireless Communications and Networking (EURASIP JWCN) https://hal.archives-ouvertes.fr/hal-01321276 EURASIP Journal on Wireless Communications and Networking (EURASIP JWCN), 2016, <10.1186/s13638-016-0575-7>ARRAY(0x7f546ffed6a0) 2016-03-10