High-efficiency satellite-ground downlink data transmission system is being demanded to support increasing volume of data with limited spectrum resource. Considering the dynamic link conditions due to the orbital motion of low Earth orbit (LEO) satellite, variable coding modulated orthogonal frequency division multiplexing (VCM-OFDM) is proposed as an effective way to better exploit link resource. In this study, regarding the relative motion between the satellite on-board transmitter and the ground station receiver, filtered-OFDM signal is designed with adjustable coding modulation sets to achieve higher spectral efficiency and get along with the high-Doppler environment at the same time. Physical layer frame structure is proposed taking the Doppler frequency shift compensation into account with minimum overhead. System performance evaluations prove that transmission throughput in the dynamic communication link can be enhanced significantly by the proposed scheme, which indicates the potential for supporting future gigabit X-band reliable satellite-ground downlink transmissions.

References

1. 1)
  - 18. Li, J., Zhou, Q., Xiong, W., et al: ‘VCM-OFDM technique for advanced space communications system with high spectral efficiency’, Acta Astronaut., 2016, 128, pp. 385–391.
2. 2)
  - 15. Farhang-Boroujeny, B.: ‘OFDM versus filter bank multicarrier’, IEEE Signal Process. Mag., 2011, 28, (3), pp. 92–112.
3. 3)
  - 19. CCSDS 401.0-B: ‘Radio frequency and modulation systems - part 1 earth stations and spacecraft’. 2014.
4. 4)
  - 9. Morello, A., Mignone, V.: ‘DVB-S2: the second generation standard for satellite broad-band services’, Proc. IEEE, 2006, 94, (1), pp. 210–227.
5. 5)
  - 14. Xu, M., He, Y., Wang, C., et al: ‘Doppler rate estimation scheme for UFMC based LEO satellite communication system’. 2016 IEEE Int. Conf. on Communication Systems (ICCS), Shenzhen, China, December 2016.
6. 6)
  - 6. Payandeh, A., Ahmadian, M., Aref, M.R.: ‘A secure channel coding scheme for efficient transmission of remote sensing data over the LEO satellite channels’. 3rd Int. Conf. on Recent Advances in Space Technologies, Istanbul, Turkey, June 2007, pp. 510–513.
7. 7)
  - 16. Cheng, X., He, Y., Ge, B., et al: ‘A filtered OFDM using FIR filter based on window function method’. IEEE 83rd Vehicular Technology Conf. (VTC Spring), Nanjing, China, May 2016.
8. 8)
  - 11. Hamkins, J.: ‘Performance of low-density parity-check coded modulation’. IEEE Aerospace Conf., Big Sky, U.S., March 2010, pp. 1–14.
9. 9)
  - 12. Ali, I., Al-Dhahir, N., Hershey, J.E.: ‘Doppler characterization for LEO satellites’, IEEE Trans. Commun., 1998, 46, (3), pp. 309–313.
10. 10)
  - 7. CCSDS 131.5-M-1.4: ‘Variable coded modulation protocol’. 2016.
11. 11)
  - 17. Abdoli, J., Jia, M., Ma, J.: ‘Filtered OFDM: a new waveform for future wireless systems’. 16th Int. ernational Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Stockholm, Sweden, June 2015, pp. 66–70.
12. 12)
  - 3. Zhang, L., Li, M: ‘The Development of Commercial Remote Sensing Satellites and LEO Communication Constellation’. 67th Int. Astronautical Congress (IAC), Guadalajara, Mexico, September 2016.
13. 13)
  - 1. Lin, Z., Kai, Y., Boon, P.K., et al: ‘Advanced receiver design for gigabit satellite downlink transmission over the X-band’. IEEE Region 10 Conf. (TENCON), Marina Bay Sands, Singapore, November 2016, pp. 3695–3698.
14. 14)
  - 4. Brenchley, M., Garner, P., Cawthorne, A., et al: ‘Bridging the abyss - agile data downlink solutions for the disaster monitoring constellation’. Proc. The 4S Symp., 2012, pp. 1–15.
15. 15)
  - 8. EN ETSI 302 307 V1.4.1: ‘Digital video broadcasting (DVB); second generation framing structure, channel coding and modulation systems for broadcasting, interactive services, new gathering and other broadband satellite applications’. 2009.
16. 16)
  - 5. Mokari, N., Hajipour, P., Mohammadi, L., et al: ‘Resource allocation for non-delay-sensitive satellite services using adaptive coding and modulation-multipe-input and multiple-output-orthogonal frequency division multiplexing’, IET Commun., 2016, 10, (3), pp. 309–315.
17. 17)
  - 10. Ginesi, A., Potevin, F.: ‘OFDM digital transmission techniques for broadband satellites’. 24th AIAA Int. Communications Satellite Systems Conf. (ICSSC), San Diego, U.S., June 2006, pp. 1–8.
18. 18)
  - 13. Ye, Z., Saulnier, G.J., Medley, M.J.: ‘Rate adaptive OFDM (RA-OFDM) spread spectrum system for LEO satellite communications’. Military Communications Conf. Proc. (MILCOM), Atlantic City, U.S., October 1999, pp. 621–625.
19. 19)
  - 2. Murthy, K., Shearn, M., Smiley, B.D., et al: ‘SkySat-1: very high-resolution imagery from a small satellite’. Proc. SPIE, 9241, Sensors, Systems, and Next-Generation Satellites XVIII, pp. 1–12.
20. 20)
  - 20. Matthe, M., Zhang, D., Schaich, F., et al: ‘A Reduced Complexity Time-Domain Transmitter for UF-OFDM’. IEEE 83rd Vehicular Technology Conf. (VTC Spring), Nanjing, China, May 2016.

Doppler-robust high-spectrum-efficiency VCM-OFDM scheme for low Earth orbit satellites broadband data transmission

References

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