Performance of a Delay-Tolerant Protocol over Point-to-Point LEO-Satellite Communication Links: An Experimental Approach

—The performance evaluation of delay-tolerant CFDP is seen in the literatures. In this work, we focus on experimental performance investigation of the delay-tolerant CFDP in the deferred NAK mode over a simulated low earth orbit (LEO)-satellite communication link. A rate-based transmission protocol is taken as a reference. This work is to see how the delay-tolerant CFDP protocol performs over a LEOsatellite link delay, especially when compounded with a high biterror-rate (BER). The investigation results show that the ratebased protocol shows superior throughput performance over both symmetric and asymmetric channels, especially at higher BERs. Quantitatively, the throughput advantage of the ratebased protocol over CFDP-TCP in symmetric channel at BER=10-5 is approximately 2200 bytes/sec, and in asymmetric channel is approximately 8500 bytes/sec. Keywords—Satellite communication, LEO-satellite, TCP, CFDP, rate-based protocol, store-and-forward

• Type: Conference
• Year: 2007
• Where: ICC
• Authors: Ruhai Wang, Prabin Manandhar, Paradesh K. V. Rapet, Xinbing Wang, Youyun Xu
• Keywords: Asymmetric Channel, Communications, Delay-tolerant Cfdp, ICC 2007, Rate-based Transmission Protocol