Skip to main content

Performance analysis of commercial multiple-input-multiple-output access point in distributed antenna system

Fan, Yuting, Aighobahi, Anthony E., Gomes, Nathan J., Xu, Kun, Li, Jianqiang (2015) Performance analysis of commercial multiple-input-multiple-output access point in distributed antenna system. Optics Express, 23 (6). p. 7500. ISSN 1094-4087. (doi:10.1364/OE.23.007500) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:48723)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://doi.org/10.1364/OE.23.007500

Abstract

Abstract: In this paper, we experimentally investigate the throughput of IEEE 802.11n 2x2 multiple-input-multiple-output (MIMO) signals in a radio-over-fiber-based distributed antenna system (DAS) with different fiber lengths and power imbalance. Both a MIMO-supported access point (AP) and a spatial-diversity-supported AP were separately employed in the experiments. Throughput measurements were carried out with wireless users at different locations in a typical office environment. For the different fiber length effect, the results indicate that MIMO signals can maintain high throughput when the fiber length difference between the two remote antenna units (RAUs) is under 100 m and falls quickly when the length difference is greater. For the spatial diversity signals, high throughput can be maintained even when the difference is 150m. On the other hand, the separation of the MIMO antennas allows additional freedom in placing the antennas in strategic locations for overall improved system performance, although it may also lead to received power imbalance problems. The results show that the throughput performance drops in specific positions when the received power imbalance is above around 13dB. Hence, there is a trade-off between the extent of the wireless coverage for moderate bit-rates and the area over which peak bit-rates can be achieved.

Item Type: Article
DOI/Identification number: 10.1364/OE.23.007500
Subjects: T Technology
Divisions: Faculties > Sciences > School of Engineering and Digital Arts
Faculties > Sciences > School of Engineering and Digital Arts > Broadband & Wireless Communications
Depositing User: Tina Thompson
Date Deposited: 03 Jun 2015 13:37 UTC
Last Modified: 29 Apr 2020 03:07 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/48723 (The current URI for this page, for reference purposes)
Gomes, Nathan J.: https://orcid.org/0000-0003-3763-3699
  • Depositors only (login required):