On the performance of beam-tracking antennas for downlink layer separation in multi-layer CDMA cellular systems

S A Ghorashi, L Wang, F Said, A H Aghvami

Research output: Chapter in Book/Report/Conference proceedingConference paper

1 Citation (Scopus)

Abstract

The separation of two-layers in multi-layer cellular systems when a single frequency band is used is a challenging task. The novel solution proposed in this paper for a CDMA system is based on the implementation of beam-tracking antennas at the macrocells to address the high crosslayer interference, which is the main limiting factor for small cells. We evaluated the downlink performance of embedded hotspots in a mixed service (voice and data) macrocell network. The macrocell to hotspot interference and the system capacity for different macrocell base station beam-widths is obtained and is compared with a conventional 3-sectored system. It is illustrated that both macrocell and hotspot capacity increase by using beam-tracking antennas at the macrocell base stations, and it is also shown that there is a trade-off between increasing the throughput at the macrocell itself, and increasing the extra capacity achieved at the hotspot.
Original languageEnglish
Title of host publicationIEEE VTC P
Place of PublicationNEW YORK
PublisherI E E E
Pages326 - 330
Number of pages5
ISBN (Print)0-7803-7757-5
Publication statusPublished - 2003
Event57th IEEE Vehicular Technology Conference - JEJU, SOUTH KOREA
Duration: 1 Jan 2003 → …

Publication series

NameIEEE VEHICULAR TECHNOLOGY CONFERENCE PROCEEDINGS

Conference

Conference57th IEEE Vehicular Technology Conference
CityJEJU, SOUTH KOREA
Period1/01/2003 → …

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