http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 주제어 : channel estima- tion (CE) (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
Inter-Vehicle Cooperation Channel Estimation for IEEE802.11p V2I Communications
Yan Yang,Fei Dan,Shuping Dang 한국통신학회 2017 Journal of communications and networks Vol.19 No.3
The impact of imperfect channel state information (CSI) is particularly serious in vehicle-to-infrastructure (V2I) and vehicle-to-vehicle (V2V) communications.~Considering the sparse characteristics of V2I channels, this paper proposes an inter-vehicle cooperation channel estimation (IVC-CE) method at the IEEE 802.11p physical layer, and the effects of outdated CSI can be mitigated by single or multiple vehicle measurements.~With these assisted measurements, we can develop an interpolation-assisted channel estimation technique to obtain accurate CSI.~To select optimum measurements from a group of channel estimates, we utilize the position and velocity of a vehicle as a priori information.~We investigate the validity of the IVC-CE technique with the traditional linear minimum mean-squared error algorithm and present a scalable data transmission scheme at the physical layer.~The performance of IVC-CE is analyzed by its mean squared error and bit error rate in a fast fading channel environment. Simulations and numerical results show the merits of the proposed techniques, which can significantly enhance estimation performance and support safety related data transmissions for vehicular ad hoc networks.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
