학술논문
VANET中基于TUU博弈的合作激励机制 / Incentive Mechanism for Cooperation Stimulation in VANET:A TUU Game Theoretic Perspective
Document Type
Academic Journal
Author
Source
火力与指挥控制 / Fire Control & Command Control. 43(6):175-183
Subject
Language
Chinese
ISSN
1002-0640
Abstract
VANET随车流的行进呈现出疏密相间的网络:夜间城市场景下,稀疏的车辆交通可能导致VANET中的严重分割,而在城市堵车场景则会引起广播风暴,严重影响了VANET的Qos服务质量,加之大量自私节点的存在,难以保证VANET中高速移动车辆间的可靠通信.针对存在自私节点的VANET,既要保证连通,又要适当降低消息冗余的问题,提出TUU-D激励机制动态时变的激励VANET中节点的移动合作.利用D-S证据理论对VANET场景状态进行动态判定;针对稀疏和稠密两种城市场景,应用TUU-D激励机制保证网络的连通性,提高网络消息投递率;将TUU-D激励机制与DARWIN机制和ICARUS机制进行对比,仿真结果表明,TUU-D机制能够更有效地激励VANET中节点间的合作.
With the travel of the traffic,the VANET presents a density interaction state:under the night scene in the city traffic,the sparse vehicle traffic may lead to serious VANET division,while,in a traffic jam,a broadcast storm would be caused which seriously affected the Qos of VANET. What's more,the existence of a large number of selfish nodes could not ensure the reliable communication between high-speed mobile vehicles. How to ensure the whole VANET united,at the same time,to reduce the redundant information when large numbers of selfish nodes exist in the VANET is a difficult problem. In this paper,a TUU-D dynamic mechanism is proposed to incent cooperation. Firstly,the D-S evidence theory is used to estimate the VANET state;Secondly,according two different states of VANET,sparse VANET or dense VANET,the TUU-D mechanism is used to guarantee the connectivity and increase the delivery rate of the network;Finally,comparing the TUU-D mechanism,DARWIN mechanism and ICARUS mechanism,the simulation results show that,our methods can be more effective to incent the cooperation between nodes in VANET.
With the travel of the traffic,the VANET presents a density interaction state:under the night scene in the city traffic,the sparse vehicle traffic may lead to serious VANET division,while,in a traffic jam,a broadcast storm would be caused which seriously affected the Qos of VANET. What's more,the existence of a large number of selfish nodes could not ensure the reliable communication between high-speed mobile vehicles. How to ensure the whole VANET united,at the same time,to reduce the redundant information when large numbers of selfish nodes exist in the VANET is a difficult problem. In this paper,a TUU-D dynamic mechanism is proposed to incent cooperation. Firstly,the D-S evidence theory is used to estimate the VANET state;Secondly,according two different states of VANET,sparse VANET or dense VANET,the TUU-D mechanism is used to guarantee the connectivity and increase the delivery rate of the network;Finally,comparing the TUU-D mechanism,DARWIN mechanism and ICARUS mechanism,the simulation results show that,our methods can be more effective to incent the cooperation between nodes in VANET.