|
For Full-Text PDF, please login, if you are a member of IEICE,
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
|
Intelligent Traffic Control Systems Based on IEEE 802.11 DCF/PCF
Chanwoo PARK Jungwoo LEE
Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Vol.E95-A
No.9
pp.1651-1654 Publication Date: 2012/09/01 Online ISSN: 1745-1337
DOI: 10.1587/transfun.E95.A.1651 Print ISSN: 0916-8508 Type of Manuscript: LETTER Category: Intelligent Transport System Keyword: intelligent traffic control, IEEE 802.11, DCF, PCF,
Full Text: PDF(417.5KB)>>
Summary:
The research on driverless cars has been making much progress lately. In this paper, we propose a new traffic control system without traffic lights at an intersection. We assume a system with fully autonomous driverless cars, and infrastructure to avoid collision completely. When automobiles approach an intersection, they communicates with the access point in both random access mode and polling mode, and the movement of the automobiles will be coordinated by the infra structure (access point). Traffic congestion is very difficult to predict and deal with because it is a function of many unknown factors such as number of cars, weather, road conditions, accidents, etc. The proposed algorithm is designed for urban road networks to ease the congestion, and make it more predictable at the same time. A key idea of this paper is that IEEE 802.11 DCF/PCF mechanisms are used to control traffic flow for driverless cars when there are no traffic lights at an intersection. The algorithm uses the concept of contention/contention-free period of IEEE 802.11 to find a balance between the efficiency of traffic flow and the fairness between users.
|
|