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http://dx.doi.org/10.7840/kics.2014.39C.10.967

Fading Effects and Antenna Diversity Tests of WAVE Communications  

Choi, Hyun-Kyun (ETRI Industries IT Convergence Research Department)
Oh, Hyun-Seo (ETRI Industries IT Convergence Research Department)
Cho, Woong (Jungwon University, Department of Computer System Engineering)
Jang, Youn-Seon (Chungnam National University Department of Electronics Engineering)
Abstract
WAVE (Wireless Access in Vehicular Environments) communications is the core technology for C-ITS (Cooperative-Intelligent Transportation System) which communicates with the road infrastructure and other vehicles to exchange traffic information and service while driving. In this paper, to analyze the performance degradation according to the distance between WAVE communication terminals, we derived the formulas for the locations of down-fade and up-fade points by using the two-ray ground reflection model, and verified these theoretical results by comparing with those of RSSI (Receiver Signal Strength Indicator) measurements. In addition, to solve the problem of down-fade, we suggested the WAVE communication with the antenna diversity and experimentally confirmed the performance improvement in the highway LOS (Line Of Sight) environments.
Keywords
WAVE; Fading; RSSI; Antenna diversity;
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Times Cited By KSCI : 3  (Citation Analysis)
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