Downlink capacity of OFDMA-CR based 5G femtocell networks

Downlink capacity of OFDMA-CR based 5G femtocell networks

Bibliografiska uppgifter
Parent link:Physical Communication
Vol. 29.— 2018.— [P. 329-335]
Huvudupphovsman: Joydev Gh. Ghosh
Institutionell upphovsman: Национальный исследовательский Томский политехнический университет (ТПУ) Институт кибернетики (ИК) Кафедра программной инженерии (ПИ)
Övriga upphovsmän: Dzhayakodi Arachshiladzh D. N. K. Dushanta Nalin Kumara, Qaraqe M. Marwa
Sammanfattning:This research work explores small cell densification as a key technique for next generation wireless network (NGWN). Small cell densification comprises space (i.e, dense deployment of femtocells) and spectrum (i.e., utilization of frequency band at large). The usage of femtocells not only improves the spectral efficiency (SE) of the Heterogeneous two-tier networks against conventional approach, but also it alleviates outage probability and enhances the achievable capacity. We yield an analytical framework to establish the density of the femto base station (FBS) to a monotonically increasing or decreasing function of distance or radius, respectively. This ensures the enhanced performance in spectrum sharing Orthogonal Frequency Division Multiple Access (OFDMA) femtocell network models. We also illustrate the influence of active Femto users (i.e., users in femtocells, and they are usually low mobility and located closer to the cell center with less fading), cluster size (i.e., a group of adjacent macrocells which use all of the systems frequency assignments) via simulation results.
Режим доступа: по договору с организацией-держателем ресурса
Språk:engelska
Publicerad: 2018
Ämnen:
труды учёных ТПУ
электронный ресурс
macrocell
femtocell
Orthogonal Frequency Division Multiple Access (OFDMA)
cognitive radio (CR) technology
downlink (DL) capacity
Länkar:https://doi.org/10.1016/j.phycom.2018.04.016
Materialtyp: Elektronisk Bokavsnitt
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=660490

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