Advanced Satellite Communications Research
Abstract
The Digital Video Broadcasting - Second Generation (DVB-S2) satellite communication system is considered under (1) a memoryless flat (i.e., single multipath) Rayleigh fading, (2) a frequency selective (i.e., multiple multipath) Rayleigh fading, (3) a flat Rician fading, and (4) a frequency-selective Rician fading channel. The bit error rate (BER) of the DVB-S2 under these fading channels could not reach 10-5 with practical symbol-energy-to-noise ratio except a flat Rician fading multipath channel of a high Rician factor K. The bandwidth efficiency of the W/V-band is computed at 10-2 BER. Orthogonal frequency division multiplexing (OFDM) was used under frequency-selective fading before the DVB-S2 decoding. It was observed that the polar code in the fifth generation (5G) system of simpler complexity performed better than DVB-S2 low-density parity-check (LDPC) forward error correction code (FEC) under both flat and frequency-selective fading. Since the 5G network being employed may not be trustable, bit streams were encrypted before a FEC channel encoder and decrypted after a FEC channel decoder as a double layer encryption with simple complexity but no performance degradation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 30, 2023
- Accession Number
- AD1210927
Entities
People
- Hyuck M. Kwon
- Richard T. Lahman
Organizations
- Wichita State University