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차량 통신 시스템을 위한 적응적 전송 기법 설계 및 성능 분석

Designs and Performance Analysis of Adaptive Transmission Scheme for Vehicle Communication System

  • 문상미 (전남대학교 전자컴퓨터공학과) ;
  • 추명훈 (전남대학교 전자컴퓨터공학과) ;
  • 이지혜 (전남대학교 전자컴퓨터공학과) ;
  • 권순호 (전남대학교 전자컴퓨터공학과) ;
  • 김한종 (한국기술교육대학 정보기술공학부) ;
  • 김철성 (전남대학교 전자컴퓨터공학과) ;
  • 황인태 (전남대학교 전자컴퓨터공학과)
  • Moon, Sangmi (School of Electronics & Computer Engineering Chonnam National University) ;
  • Chu, Myeonghun (School of Electronics & Computer Engineering Chonnam National University) ;
  • Lee, Jihye (School of Electronics & Computer Engineering Chonnam National University) ;
  • Kwon, Soonho (School of Electronics & Computer Engineering Chonnam National University) ;
  • Kim, Hanjong (School of Electrical, Electronics & Communication Engineering, Korea University of Technology and Education) ;
  • Kim, Cheolsung (School of Electronics & Computer Engineering Chonnam National University) ;
  • Hwang, Intae (School of Electronics & Computer Engineering Chonnam National University)
  • 투고 : 2016.04.25
  • 심사 : 2016.08.26
  • 발행 : 2016.09.25

초록

향상된 무선 통신 시스템을 이용하여 교통안전을 개선하기 위해 V2X (Vehicle to Everything) 통신에 대한 연구가 활발히 진행되고 있다. V2X 통신은 미래 교통안전 및 이동성의 발전을 위한 하나의 주요 솔루션이다. 본 논문에서는 LTE (Long Term Evolution) 기반 V2X 시스템 레벨 시뮬레이터 (SLS : System Level Simulator)를 개발하고 차량통신을 위한 적응적 전송 기법을 제안한다. 제안 기법은 시간 및 주파수 영역에서 랜덤하게 자원을 할당하고 전송 확률에 따라 메시지 전송을 결정한다. 성능 분석은 주기적 메시지 전송에서 고속도로의 경우에 대하여 이루어 졌다. 모의실험 결과, 제안한 기법에서 자원 충돌 및 간섭이 감소함 따라 PRR (Packet Reception Ratio)의 CDF (Cumulative Distribution Function) 및 평균 PRR이 향상 되는 것을 볼 수 있다.

Vehicle to Everything (V2X) communication has been growing to enhance traffic safety by employing advanced wireless communication systems. V2X communication is one core solution for governing and advancing future traffic safety and mobility. In this paper, we design the system level simulator (SLS) of Long Term Evolution (LTE)-based V2X and propose the adaptive transmission scheme for vehicle communication. The proposed scheme allocates the resource randomly in time and frequency domain, and transmit the message according to probability of transmission. The performance analysis is based on freeway case in periodic message transmission. Simulation results show that proposed scheme can improve the cumulative distribution function (CDF) of packet reception ratio (PRR) and average PRR.

키워드

참고문헌

  1. Seungcheon Kim, "A Study on The Frequency Allocation of WAVE for Smart Vehicle Industry," Journal of The Institute of Electronics and Information Engineers Vol. 51, NO. 6, June 2014.
  2. Rinara Woo and Dong Seog Han, "Adaptive Transmission Scheme According to Vehicle Density in IEEE 802.11p MAC Protocol," Journal of The Institute of Electronics and Information Engineers Vol. 49, NO. 4, April 2012.
  3. 3GPP TD RP-151109 : "New SI proposal : Feasibility Study on LTE-based V2X Services".
  4. 3GPP TR 22.885 : "Study on LTE Support for V2X Services".
  5. 3GPP TR 36.885 : "Study on LTE-based V2X Services".
  6. 3GPP TR 36.843 : "Study on LTE Device to Device Proximity Services".