論文 / 著書情報
Article / Book Information
題目(和文)

協調認知を実現するためのSDNに基づくV2Xプラットフォームに関する研究

Title(English)

SDN-Based V2X Platform for Cooperative Perception

著者(和文)

李宗典

Author(English)

Zongdian Li

出典(和文)

学位:博士(学術),学位授与機関:東京工業大学,
報告番号:甲第12588号,
授与年月日:2023年9月22日,
学位の種別:課程博士,
審査員:阪口 啓,廣川 二郎,岡田 健一,TRAN GIA KHANH,西尾 理志,原井 洋明

Citation(English)

Degree:Doctor (Academic),
Conferring organization: Tokyo Institute of Technology,
Report number:甲第12588号,
Conferred date:2023/9/22,
Degree Type:Course doctor,Examiner:,,,,,

学位種別(和文)

博士論文

Category(English)

Doctoral Thesis

種別(和文)

論文要旨

Type(English)

Summary

Powered by T2R2 (Tokyo Institute Research Repository)

（博士課程）Doctoral Program論 文 要 旨ＴＨＥＳＩＳ ＳＵＭＭＡＲＹ

系・コース：

電気電子

Department of, Graduate major in

学生氏名：
Student’s Name系
コース

Zongdian LI

申請学位（専攻分野）：

博士

Academic Degree Requested

Doctor of

指導教員（主）：Academic Supervisor(main)（ 学術 ）Kei SAKAGUCHI

指導教員（副）：Academic Supervisor(sub)要旨（英文 800 語程度）
Thesis Summary （approx.800 English Words ）Cooperative perception is envisioned as a significant vehicle-to-everything (V2X) application for roadsafety and automated driving. A comprehensive overview of this application is provided in Chapter 2 ofthis thesis. To enable cooperative perception which has stringent requirements in communication data rate,latency, and reliability, this thesis integrates software defined networking (SDN) into vehicular networks
to utilize the promising but intractable millimeter wave (mmWave) communications.
First and foremost, this thesis presents a fully centralized architecture of SDN-based dynamic mmWave
V2X networks in Chapter 3. This architecture introduces three dedicated control functions for mmWave,including context management, access management, and routing management. They are responsible forcollecting dynamic mobility information from vehicles, facilitating the association with mmWave accesspoints on roadside units (RSUs), and scheduling multi-hop transmission for sharing raw sensor data,respectively. The prototyping and proof-of-concept experiments are all revealed in the thesis, including
a field trial of a common risk scenario (right turn under occluded vision) for vehicles. It demonstrates
that the designed and implemented network can support cooperative perception and ensure road safety.
Despite of the advantages of centralization for control, the research of this thesis targets a practical,scalable, and versatile software defined vehicular network (SDVN) platform. Therefore, this thesispresents an enhanced architecture called Het-SDVN in Chapter 4, which introduces hierarchy (local/global
C/D-planes) and heterogeneous V2X technologies (at low/high frequencies). The chapter firstly illustrates
the design and implementation of a local SDVN framework that empowers RSUs with the capability of networkand sensor management for cooperative perception. Then, an integration test of Het-SDVN with real-world
infrastructures and equipment is showcased. The Het-SDVN mechanisms which support different types ofcooperative perception (detected object-based and raw point clouds-based) and cooperative perception
across multiple local SDVNs are verified. The chapter also analyzes the experimental results in detail.
Ultimately, to convince that the proposed Het-SDVN platform has generality and extensibility for other
V2X applications, this thesis introduces the delivery of a mobility-aware high-definition (HD) map
distribution service for automated vehicles based on the Het-SDVN in Chapter 5. The service request andvehicle mobility information are collected through global C-planes. At the cloud or multi-access edge
computing (MEC) servers, map processing takes the mobility information into account. After partition,
the HD map is cached to an RSU in proximity to the request vehicle and then distributed through local
D-planes when the vehicle approaches. In this chapter, the design, implementation, and proof-of-concept
work are presented. It shows that the Het-SDVN organizes expected network resources for map delivery.
Most importantly, the test vehicle performs smooth automated driving with the receive HD map.
The main contributions of this thesis are summarized as follows:(1) A novel SDN-based vehicular network architecture that enables mmWave for cooperative perception.
(2) A hierarchical SDVN capable of managing heterogeneous V2X resources for diverse service requests.
(3) A promising HD map distribution service fostered by the proposed network platform.
備考 : 論文要旨は、和文 2000 字と英文 300 語を 1 部ずつ提出するか、もしくは英文 800 語を 1 部提出してください。
Note : Thesis Summary should be submitted in either a copy of2000 Japanese Characters and 300 Words (Engｌish) or 1copy of 800

Words (English).
注意：論文要旨は、東工大リサーチリポジトリ（T2R2）にてインターネット公表されますので、公表可能な範囲の内容で作成してください。
Attention: Thesis Summary will be published on Tokyo Tech Research Repository

Website (T2R2).