Channel‐based antenna synthesis for improved in‐vehicle UWB MB‐OFDM communications. Issue 9 (5th April 2019)

• Record Type: Journal Article
• Authors: Sharma, Ashwani; Garcia Zuazola, Ignacio J.; Martnez, Ramón; Perallos, Asier; Batchelor, John C.
• Is Part Of: IET microwaves, antennas & propagation. Volume 13:Issue 9(2019)
• Page Start: 1358
• Page End: 1367
• Publication Date: 2019-04-05
• Subjects: personal area networks -- ultra wideband antennas -- wireless channels -- ultra wideband communication -- error statistics -- OFDM modulation; specific channel measurements -- channel‐based antenna synthesis technique -- antenna source -- improved BER performance -- standard antenna -- improved in‐vehicle UWB MB‐OFDM communications -- ultra‐wide band -- high data rates -- multiband orthogonal frequency division -- high performance -- low‐cost characteristics -- improved UWB MB‐OFDM communications -- in‐vehicle UWB antennas -- communication channel -- in‐car channel evaluation including bit‐error‐rate -- radiation pattern -- ‐source syntheses -- channel models -- in‐vehicle application -- current 3.0 A; Microwaves -- Periodicals; Microwave antennas -- Periodicals; Antennas (Electronics) -- Periodicals; Radio wave propagation -- Periodicals; Microwave communication systems -- Periodicals; 621.381305
• DOI: 10.1049/iet-map.2018.5735
• Languages: English
• ISSNs: 1751-8725

Abstract

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'.