16086

14362

كارشناسي ارشد

الكترونيك

اصفهان : دانشگاه صنعتي اصفهان

1399

سيزده، 78ص.: مصور، جدول، نمودار

1399/09/28

كتابنامه

مهندسي برق

مهندسي برق و كامپيوتر

1399/09/29

2652161

Investigation of Camera Specifications Impact on Intelligent Transportation Systems Based on Visible Light Communication Negar Masjedi Esfahani n masjedi@ec iut ac ir September 2 2020 Department of Electrical and Computer Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisor Assoc Prof Asghar Gholami gholami@cc iut ac ir Abstract According to the Global Status Report on Road Safety 2018 provided by the World Health Organi zation WHO road traffic death is the 8th leading cause of death for all age groups Therefore therehas been a growing interest in a field of intelligent transportation systems ITS in order to reducetraffic congestion accidents air and noise pollution and other environmental concerns Currently radio frequency RF based technology is the most adaptive candidate for vehicular communications Apart from the existing RF based wireless communications there is an alternative and complemen tary vehicle to vehicle V2V communications based on the optical camera communication OCC technology Typically an OCC based communication system is composed of a light emitting diode LED as a transmitter and a camera as a receiver The OCC technology offers a number of advan tages over the RF based technology there are greater bandwidth reduced levels of interference less complex and lower cost Nowadays almost all new vehicles come with back and front camerasand LED based lights Therefore these cameras can be effectively utilized within the remit of ITS for multiple functionalities of imaging video streams outdoor localization and data transmission However due to the low frame rates particularly in off the shelf cameras OCC systems have theirlimitations including light flickering and lower data rates In order to address these limitations cam eras with the rolling shutter effect and dedicated modulation schemes can be used In OCC systems many parameters have an impact on the system performance However few papers have investi gated the influence of camera settings in OCC systems which is the subject of this work Here aV2V OCC based system is modeled considering a LED with Lambertian radiation pattern in thetransmitter side a CMOS camera in the receiver side the channel attenuation and the camera noisesources The impact of parameters such as camera exposure time resolution image sensor size lensdimension transmitted power and atmospheric attenuation coefficient are investigated Key Words Visible Light Communication VLC Optical Camera Communication OCC Intelli gent Transportation System ITS Image Sensor

اصغر غلامي

استنيسلاو زوانوك

فروغ السادات طباطبا، مسعود عمومي