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Experimental Evaluation of TCP-Based DTN for Cislunar Communications in Presence of Long Link Disruption


Delay/disruption tolerant networking (DTN) technology is considered a new solution to highly stressed communications in space environments. To date, little work has been done in evaluating the effectiveness and performance of the available DTN protocols when they are applied to an interplanetary Internet, especially in presence of a long link disruption. In this paper, we present an experimental investigation of the DTN architecture with a Bundle Protocol (BP) running over TCP-based convergence layer (TCPCL) protocol in a simulated cislunar communication environment characterized by a long link disruption. The intent of this work is to investigate the effectiveness of the TCPCL-based DTN protocol in coping with long link disruptions, through realistic file transfer experiments using a PC-based test-bed. The experiment results show that the DTN protocol is effective in handling a long link disruption experienced in data transmission accompanied by a cislunar link delay and a high BER. The performance of the DTN is most adversely affected by link disruption time in comparison to the effect of link delay and BER. For the transmissions with a very long link disruption of hours, the variations in goodput are nominal with respect to the change in cislunar link delay.

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Correspondence to Ruhai Wang.

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Wang, R., Wu, X., Zhang, Q. et al. Experimental Evaluation of TCP-Based DTN for Cislunar Communications in Presence of Long Link Disruption. J Wireless Com Network 2011, 720671 (2011).

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  • Information System
  • Experimental Investigation
  • Experimental Evaluation
  • Data Transmission
  • System Application