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Channel-based antenna synthesis for improved in-vehicle UWB MB-OFDM communications

Sharma, Ashwani, Garcia Zuazola, Ignacio J., Martnez, Ramón, Perallos, Asier, Batchelor, John C. (2019) Channel-based antenna synthesis for improved in-vehicle UWB MB-OFDM communications. IET Microwaves, Antennas and Propagation, 13 (9). pp. 1358-1367. ISSN 1751-8725. E-ISSN 1751-8733. (doi:10.1049/iet-map.2018.5735) (KAR id:73957)

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http://dx.doi.org/10.1049/iet-map.2018.5735

Abstract

Ultra-wide band (UWB) is an attractive technology for innovative in-vehicle wireless communications requiring high data rates and multiband orthogonal frequency division multiplexing (MB-OFDM) a suitable scheme for the accomplishment due to its high performance, low-power and low-cost characteristics. To contribute toward improved UWB MB-OFDM communications inside vehicles, a channel-based antenna synthesis technique to customise in-vehicle UWB antennas that reduce ‘blind spots’ in the communication channel is proposed and presented. For the realisation, a comprehensive analysis was utilised and comprised an in-car channel evaluation including bit-error-rate (BER) estimations and radiation pattern-and-source syntheses. The channel was measured using a standard antenna to set up the base of the experiments and the distribution of the impulse responses and signal-to-noise ratios in the vehicle's passenger plane shown. The currently available IEEE 802.15.3a channel models were perceived unrealistic for the in-vehicle application and the reason for measuring the channel practically. Using these specific channel measurements, the synthesised pattern is unveiled and consequently the channel-based antenna synthesis technique used to predict the antenna source. The antenna with optimised pattern-and-source showed an improved BER performance compared with the standard antenna in this application; that is, a figure of merit of 37.73% minimised ‘blind spots’.

Item Type: Article
DOI/Identification number: 10.1049/iet-map.2018.5735
Uncontrolled keywords: personal area networks; ultra wideband antennas; wireless channels; ultra wideband communication; OFDM modulation; error statistics
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering > TK6540 Radio > TK6570.M6 Mobile communication systems
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: John Batchelor
Date Deposited: 17 May 2019 14:26 UTC
Last Modified: 16 Feb 2021 14:04 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/73957 (The current URI for this page, for reference purposes)
Batchelor, John C.: https://orcid.org/0000-0002-5139-5765
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