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A low‐complexity architecture using diversity techniques for Internet of Vehicles with enhanced radio‐frequency performance
Author(s) -
Tsai ILin,
Chen YenSheng
Publication year - 2019
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.31726
Subject(s) - computer science , non line of sight propagation , multipath propagation , antenna diversity , electronic engineering , diversity scheme , radio frequency , antenna (radio) , diversity gain , telecommunications , mimo , beamforming , engineering , decoding methods , wireless , fading , channel (broadcasting)
In this article, we present a new architecture for the Internet of Vehicles (IoVs) that feature reduced system complexity and enhanced radio‐frequency (RF) performance. The proposed system requires no complex coding or selection algorithms, yet it significantly improves the received signal strength. We implement dual‐port antennas comprising a linearly polarized (LP) antenna and a circularly polarized (CP) antenna, which minimize the polarization loss between multipath signals and the receiving antenna. Using Wi‐Fi communications, we designed, fabricated, and examined a prototype system comprising seven circuit modules that employ spatial diversity and revised polarization diversity simultaneously. We test its performance using two antenna combinations with distinct peak gain characteristics. Our results show these antennas have highly desirable impedance matching and radiation properties and enhanced received signal strength compared to conventional techniques. As such, the proposed system can greatly improve signal quality and reliability in non‐line‐of‐sight (NLOS) IoV scenarios.