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The Research of Intrusion Detection Technology Based on CCSDS AOS Space Network

Author: XiaoGuangYuan
Tutor: XiaoZhiDong
School: Shenyang University of Technology
Course: Communication and Information System
Keywords: Cluster Near Space Network Intrusion Detection Network protocol
CLC: TN915.08
Type: Master's thesis
Year: 2011
Downloads: 45
Quote: 0
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Abstract


With the continuous development of aerospace technology space , the size of the space communications network is also constantly ensues. Current space network system comprising a trunk link of the satellite and ground stations as well as by the additional link is constituted by the airplanes, airships and LEO satellite nodes perform different tasks in different tracks , composed of a mixed network consisting through space information link interconnected to form a communication network of intelligent , self- running . Near Space Network of additional aircraft , airships and LEO satellite link is established on demand and is mainly used for the forwarding of information between the satellite and ground station so near space network space communication network system important part. The network has the dynamic changes of the network topology , multi-hop and center is characterized by self-organization . Widely used in various fields due to space communications network , the network security research has also become the focus of attention , which dynamic network topology with a unique network of near space , so that it is facing more security threats . This article summarized the first near - space network background , structure , characteristics . Then focus SCPS-NP near space network protocol analysis , combined with near - space network characteristics SCPS-NP protocol security extensions . Subsequently, the for near space network facing security threats , combined with the extended SCPS-NP agreement focuses on clustering algorithm for Near Space Network , and on this basis propose an improved strategy of cluster - based intrusion detection . Hop range random election cluster head node using the cluster head node network node transceiver status monitoring , so as to prevent the spread of intrusion attacks in the network . Finally, OPNET network simulation software Simulation and Implementation of clusters and intrusion detection strategy . The simulation results show that the strategy can effectively reduce the load caused by the network intrusion overhead and improve network throughput and latency performance .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Communication network > General issues > Network Security
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