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C-V2X 系统中动态信道预测的 R-ATB 算法.

C-V2X 系统中动态信道预测的 R-ATB 算法.

Authors :
江晓明
吴 昊
丛滢淇
杜 雪
方婧茹
Source :
Journal of Jiangsu University (Natural Science Edition) / Jiangsu Daxue Xuebao (Ziran Kexue Ban). 2023, Vol. 44 Issue 1, p62-66. 5p.
Publication Year :
2023

Abstract

In the IoV system, the high speed movement of vehicle nodes and frequent changes in speed, direction and other states cause time-varying fading of the wireless channel in vehicular networks. To solve the problems of the currently used adaptive traffic beacons (ATB) prediction algorithm process with complex and many channel quality evaluation indicators, a new R-ATB prediction algorithm was proposed. The R-ATB algorithm was achieved by calculating the corresponding correlation time parameter of relevant time (RT) according to the Doppler shift degree of node motion. The package delivery rate (PDR) and the time delay parameters under the correlated channel prediction algorithm were analyzed and evaluated by setting the conditions and system modeling in OMNET++ universal network platform. The results show that compared with static beacons and traditional ATB algorithms, in the proposed R-ATB prediction algorithm, less amount of real-time evaluation metrics and smaller computation of the prediction process are used to reduce the communication channel congestion of IoV. The propagation timeliness of security beacons and the PDR of high-speed data transmission success rate are improved in typical high-density OBUs data interaction scenarios. [ABSTRACT FROM AUTHOR]

Details

Language :
Chinese
ISSN :
16717775
Volume :
44
Issue :
1
Database :
Academic Search Index
Journal :
Journal of Jiangsu University (Natural Science Edition) / Jiangsu Daxue Xuebao (Ziran Kexue Ban)
Publication Type :
Academic Journal
Accession number :
161863528
Full Text :
https://doi.org/10.3969/j.issn.1671-7775.2023.01.009