Improving the throughput of a low-Earth orbit microsatellite protocol

Author

Rosmansyah, Yusep ; Allery, Mark

Author_Institution

Electr. Eng. Dept., Inst. Teknologi Bandung, Indonesia

Volume

1

fYear

1997

fDate

9-12 Sep 1997

Firstpage

10

Abstract

This paper proposes an approach to improve the throughput of the uncoded protocol in use by some UoSAT/SSTL microsatellites, i.e., the hole-filling PACSAT broadcast automatic retransmission request (PB-ARQ). The goal is achieved by adaptively incorporating a forward error correction (FEC) capability. Analyses on the design constraints lead to the implementation of a punctured convolutional code with code-combining Viterbi decoding. Simulations show that the propose scheme outperforms the existing one in all simulated possible channel bit error rates (BERs). The formerly zero throughput at channel BER around 5×10 ^-3 is now increased to approximately 60%

Keywords

Viterbi decoding; adaptive codes; automatic repeat request; channel coding; convolutional codes; forward error correction; protocols; satellite communication; BER; PB-ARQ; SSTL microsatellites; UoSAT microsatellites; channel bit error rates; code-combining Viterbi decoding; forward error correction; hole-filling PACSAT broadcast automatic retransmission request; low-Earth orbit microsatellite protocol; punctured convolutional code; Automatic repeat request; Bit error rate; Broadcast technology; Electronic mail; Error correction; Forward error correction; Lead; Protocols; Satellite broadcasting; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications and Signal Processing, 1997. ICICS., Proceedings of 1997 International Conference on

Print_ISBN

0-7803-3676-3

Type

conf

DOI

10.1109/ICICS.1997.647047

Filename

647047