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Semi-adaptive modulation and forward error correction for wideband communication systems

This paper presents a novel application of adaptive modulation and coding (AMC) for spacecraft communication systems. Whereas terrestrial AMC often assumes availability of either real-time or statistical channel state information at the transmitter (CSIT), in the space environment there are often in...

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Bibliographic Details
Main Author: Hayes, R L
Format: Conference Proceeding
Language:English
Subjects:
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Summary:This paper presents a novel application of adaptive modulation and coding (AMC) for spacecraft communication systems. Whereas terrestrial AMC often assumes availability of either real-time or statistical channel state information at the transmitter (CSIT), in the space environment there are often insufficient resources to provide real-time access to channel statistics at the transmitter. We demonstrate a communication system architecture that utilizes some of the principles of closed loop AMC, but without the requirement of a feedback path to provide CSIT. We propose a system which switches among three modulation schemes commonly considered for implementation in the space environment: binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), and 8-state phase shift keying (8-PSK). For these modulation states, we consider possible forward error correction algorithms which have been standardized by the Consultative Committee for Space Data Systems (CCSDS).
ISSN:1095-323X
2996-2358
DOI:10.1109/AERO.2011.5747351