Support of IP Routing and of TCP/IP Over Fast-Switching EuroSky Way Geo-Satellite Network

Author(s):  
G Losquadro ◽  
F Mazzolini ◽  
L Secondiani
2018 ◽  
Vol 2018 ◽  
pp. 1-14 ◽  
Author(s):  
Songjie Wei ◽  
Shuai Li ◽  
Peilong Liu ◽  
Meilin Liu

LEO constellation has received intensive research attention in the field of satellite communication. The existing centralized authentication protocols traditionally used for MEO/GEO satellite networks cannot accommodate LEO satellites with frequent user connection switching. This paper proposes a fast and efficient access verification protocol named BAVP by combining identity-based encryption and blockchain technology. Two different key management schemes with IBE and blockchain, respectively, are investigated, which further enhance the authentication reliability and efficiency in LEO constellation. Experiments on OPNET simulation platform evaluate and demonstrate the effectiveness, reliability, and fast-switching efficiency of the proposed protocol. For LEO networks, BAVP surpasses the well-known existing solutions with significant advantages in both performance and scalability which are supported by theoretical analysis and simulation results.


2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Liang Zong ◽  
Yong Bai ◽  
Chenglin Zhao ◽  
Gaofeng Luo ◽  
Zeyu Zhang ◽  
...  

The geostationary (GEO) satellite networks have two important influencing factors: high latency and transmission errors. Similarly, they will happen in the large-scale multihop network of the Internet of things (IoT), which will affect the application of 5G- (5th-generation mobile networks-) IoT. In this paper, we propose an enhanced TCP mechanism that increases the amount of data transferred in the slow start phase of TCP Hybla to mitigate the effect of long RTT and incorporates a refined mechanism of TCP Veno, which can distinguish packet loss between random and congestion. This scheme is evaluated and compared with NewReno, Hybla, and Veno by simulation, and the performance improvement of the proposed TCP scheme for GEO satellite network in the presence of random packet losses is demonstrated. At the same time, the enhanced TCP scheme can improve the transmission performance in the future 5G-IoT heterogeneous network with high delay and transmission .


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