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| Titre: | Development of pilot symbols contamination mitigation techniques in massive MIMO/mmwave systems |
| Auteur(s): | Smaili, Nessrine |
| Mots-clés: | 5G
Massive MIMO
Mmwave |
| Date de publication: | 2019 |
| Résumé: | Millimiter waves and Massive MIMO are considered an enabling keys for future 5G cellular
systems. Our work is subjected towards the two problems in such systems, that are Interference
signal and pilot contamination (PC). We propose to incorporate oblique projection (OP) with
conventional ZF beamforming in the downlink of a massive MIMO communication system.
Resulting beamformer uses OP spaces to separate the received signal into two subspaces: the
one pertaining to the desired user signal and the other to interference signals, thus achieving a
high degree of interference suppression. For the PC problem, we propose a scheme based on
beamspace unitary ESPRIT (BU-ESPRIT) algorithm for the parameter channel estimation to
combat the PC in massive MIMO system, and the incorporation of AST in mmwave massive
MIMO system to cancel out the interfering signals |
| Description: | 129 p. ; ill. : 30 cm |
| URI/URL: | http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/5533 |
| Collection(s) : | Doctorat
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