Piggybacking assisted many-to-Many communication with efficient vehicle selection for improved performance in vehicular ad hoc networks

2016 ◽  
Vol 108 ◽  
pp. 223-232 ◽  
Author(s):  
Moumita Patra ◽  
C. Siva Ram Murthy
2020 ◽  
Vol 9 (9) ◽  
pp. 1379-1383 ◽  
Author(s):  
Yixin He ◽  
Daosen Zhai ◽  
Yi Jiang ◽  
Ruonan Zhang

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Xin Ye ◽  
Gencheng Xu ◽  
Xueli Cheng ◽  
Yuedi Li ◽  
Zhiguang Qin

Development of Internet of Vehicles (IoV) has aroused extensive attention in recent years. The IoV requires an efficient communication mode when the application scenarios are complicated. To reduce the verifying time and cut the length of signature, certificateless aggregate signature (CL-AS) is used to achieve improved performance in resource-constrained environments like vehicular ad hoc networks (VANETs), which is able to make it effective in environments constrained by bandwidth and storage. However, in the real application scenarios, messages should be kept untamed, unleashed, and authentic. In addition, most of the proposed schemes tend to be easy to attack by signers or malicious entities which can be called coalition attack. In this paper, we present an improved certificateless-based authentication and aggregate signature scheme, which can properly solve the coalition attack. Moreover, the proposed scheme not only uses pseudonyms in communications to prevent vehicles from revealing their identity but also achieves considerable efficiency compared with state-of-the-art work, certificateless signature (CLS), and CL-AS schemes. Furthermore, it demonstrates that when focused on the existential forgery on adaptive chosen message attack and coalition attack, the proposed schemes can be proved secure. Also, we show that our scheme exceeds existing certification schemes in both computing and communication costs.


In the Vehicular Ad hoc Networks (VANET), performance is the key factor for the development of a standard routing protocol. The general characteristics of VANET are dynamic vehicle network topology and mobility. The choice of a better next forwarding hop vehicle among the available neighboring vehicles will lead better use of the route and also minimize the delays. However, there is a need for an efficient decision making in selecting the route for successful packet delivery. This paper proposes a new hybrid routing protocol called “Fuzzy assisted Location Aided Routing using Cache” (FLAR-C). FLAR-C uses a fuzzy logic technique that helps in better decision making to select the next hop for packet forwarding. Metrics like distance, direction, velocity, density and position of next hop vehicle are placed into the fuzzy logic system. And moreover, the proposed technique uses cache schemes to forward packets to the destinations under the Geocast zone. An experimental study is carried out to prove the performance of the proposed protocol and the simulation results highlights that FLAR-C is more effective in selecting the better forwarding hop for improved performance


2017 ◽  
Vol 66 (10) ◽  
pp. 9534-9549 ◽  
Author(s):  
Daxin Tian ◽  
Jianshan Zhou ◽  
Zhengguo Sheng ◽  
Min Chen ◽  
Qiang Ni ◽  
...  

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