Title :
Data packet throughput of the Space Station Freedom Ku-band return link due to encryption
Author_Institution :
Lockheed Eng. & Sci. Co., Houston, TX, USA
Abstract :
An analysis is made of the probabilities of data packet loss for both an encrypted channel in self-synchronous cipher feedback mode and a nonencrypted channel in the Ku-band single-access return link of the Space Station Freedom (SSF). Simulation results show reasonable agreement with analytical results. When channel bit error probability is 10-5 and the total number of packets in a frame is three, the analytical result is 0.39% packet loss, while the simulation result is 0.22% packet loss due to encryption. Although the analysis is performed for the SSF application, the equations derived, with minor changes, will be useful in many packet communication applications
Keywords :
cryptography; encoding; error statistics; microwave links; space communication links; synchronisation; telecommunication channels; Ku-band single-access return link; Space Station Freedom; channel bit error probability; data packet throughput; encoding; encrypted channel; microwave links; nonencrypted channel; packet loss probability; self-synchronous cipher feedback mode; Character generation; Cryptography; Error correction; Error correction codes; Feedback; NASA; Quadrature phase shift keying; Shift registers; Space stations; Throughput;
Conference_Titel :
Communications, 1991. ICC '91, Conference Record. IEEE International Conference on
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-0006-8
DOI :
10.1109/ICC.1991.162530
