Satellite Communications Modulation and Multiplexing

• Published in: Handbook of Satellite Applications pp. 463 - 496
• Main Author: Thompson, Paul T.
• Format: Book Chapter
• Language: English
• Published: Cham Springer International Publishing 2017
• Subjects: ALOHA random access; Bit error rate (BER); Bit rate; Block codes; Carrier to noise ratio; CDMA; Claude Shannon; Coding; Coding gain; Convolutional coding; Decoding; Demand assigned multiple access (DAMA); Demand assignment; Demodulator; Digital video broadcast (DVB); Encoding; Forward error correction (FEC); Low-density parity-check (LDPC) coding; Medium access control (MAC); Modem; Modulation; Multiple access techniques; Nyquist filtering; Random access; Reed–Solomon coding; Signal constellation; Spectral efficiency; Symbol rate; TDMA; Turbo coding; Viterbi algorithm or Viterbi coding; VSAT networks
• ISBN: 3319233858; 9783319233857
• DOI: 10.1007/978-3-319-23386-4_86

This chapter addresses the principles involved in three key areas in satellite communications, namely, modulation (and demodulation), forward error coding, and multiple access approaches or techniques. It focuses on features and technical approaches utilized in modern-day digital satellite communications systems. Since analog approaches or techniques are today seldom used in operating satellite networks, they are not addressed in detail. Nevertheless, several references are given concerning such analog techniques should there be a historical interest in these subjects. The materials provided in this chapter are aimed at giving an appreciation of the issues involved and the performance achievable in practice. For more detailed mathematical treatments, an extensive bibliography is also provided.