Spatial Multidimensional Cooperative Transmission Theories And Key Technologies. Lin Bai

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      where (·)^H is the transpose of matrix and ρ is the linear signal-to-noise ratio of the channel. The signal-to-noise ratio of the channel is defined as SNR = 10 lg(ρ) = EIRP + (G − T)−κ − β [dB], where EIRP, (G−T), κ, and β are the effective isotropic radiated power, the quality factor, the Boltzmann constant, and the logarithm of downlink bandwidth, respectively. Since the distance between the satellite and the ground is much larger than the distance between array antennas, each element in the transfer matrix H can be considered to be of the same magnitude. Therefore, the transfer matrix H of the MIMO channel satisfying the maximum multiplexing gain is an orthogonal matrix. The theoretically optimal channel capacity can be achieved by adjusting the distance between the antennas and the distance between the constellations. The accessibility and conditions of the optimal channel capacity will be discussed in detail in Chapter 8.

1.4Summary

      Traditional wireless communication mainly uses ground-based wireless communication systems. However, with the rapid development of wireless communication systems, it is increasingly requiring higher spectrum utilization, greater system capacity, more flexible network coverage, and lower construction costs. With the continuous improvement of aerospace technology and the rapid growth of the types and quantities of space-based and air-based platforms, the space–air–ground integrated information network consisting of satellites, stratospheric balloons, and various aerospace vehicles is developed. This chapter mainly summarizes the characteristics and development process of the ground-based, air-based, and space-based wireless communication systems. In the following chapters, we will elaborate on the space–air–ground integrated cooperative transmission theories and key technologies.

References

      1.Macdonald VH. The cellular concept. Bell System Technical Journal, 1979, 58: 15–41.

      2.Bai L, Li Y, Huang Q, Dong X and Yu Q. Spatial Signal Combining Theories and Key Technologies. Posts&Telecom Press, Beijing, 2013.

      3.Young WR. Advanced mobile phone service: Introduction, background, and objectives. Bell System Technical Journal, 1979, 58: 1–14.

      4.TIA/EIA/IS-95 Interim Standard. Mobile Station-Base Station Compatibility Standard for Dual-Mode Wideband Spread Spectrum Cellular System, 1993.

      5.3GPP TR 36.913 v.8.0.1 Requirements for Further Advancements for E-UTRA. Tech. Report, 3rd Generation Partnership Project, 2009.

      6.IEEE P802.16m/D3. Part 16: Air Interface for Broadband Wireless Access Systems, Advanced Air Interface, 2009.

      7.METIS. Mobile And Wireless Communications Enablers For The 2020 Information society[EB/OL]. http://www.metis2020.com.

      8.Wen T and Zhu PY. 5G: A technology vision 2013. 2014 National Wireless And Mobile Communication Academic Conference (WMC’14), Liaoning, China, 2014, 5–9.

      9.Eguchi K. Overview of stratospheric platform airship R&D program in Japan. The Proceeding of the First Stratospheric Platform Systems Workshop, Yokosuka, Japan, 1999.

      10.Wu YS. High altitude platform stations information system—new generation-wireless communications system. ChinaRadio, 2003, 6.

      11.Sun ZQ. The rapid development of high-altitude platform communication system. People’s Posts and Telecommunications News, 2004, 06–17.

      12.Taha-Ahmcd B, Calm-Ramon M, Haro-Arict DE. High altitude platforms (HAPs) W-CDMA system over cities. IEEE Vehicular Technology Conference, 2005, 2673–2677.

      13.Tozer TC, and Grace D. High-altitude platforms for wireless communications. IEEE Electronics and Communications Engineering Journal, 2001, 13(3): 127–137.

      14.ITU Recommendation ITU-R F.1500, Preferred Characteristics of Systems in the Fixed Service Using High Altitude Platforms Operating in the Bands 47.2–47.5 GHz and 47.9–48.2 GHz. International Telecommunications Union, Geneva, Switzerland, 2000.

      15.ITU Recommendation ITU-RF.1569, Technical and Operational Characteristics for the Fixed Service Using High Altitude Platform Stations in the Bands 7.5–28.35 GHz and 31–31.3GHz. International Telecommunications Union, Geneva, Switzerland, 2002.

      16.ITU Recommendation M.1456, Minimum Performance Characteristics and Operational Conditions for HAPS Providing IMT-2000 in the Bands 1885–1980 MHz, 2010–2025 MHz and 2110–2170 MHz in Regions 1 and 3 and 1885–1980 MHz and 2110–2160 MHz in Region 2. International Telecommunications Union, Geneva, Switzerland, 2000.

      17.Mohorcic M, Javorinik T, Lavric A, et al. Selection of Broadband Communication Standard for High-Speed Mobile Scenario, FP6 CAPANINA Project. https://www.capanina.com/documents/CAP-D09-WP21-JSI-PUB-01.pdf, 2005.

      18.Grace D, Thornton J, Konefal T, et al. Broadband communications from high altitude platforms the HeliNet solution. Personalized Multimedia Communication Conference, Aalborg, Denmark, 2001, 75–80.

      19.Grace D, Capstick MH, Mohorcic M, et al. Integrating users into the wider broadband network via high altitude platforms. IEEE Wireless Communications, 2005, 12: 98–105.

      20.Oodo M, Miura R, Hori T, et al. Sharing and compatibility study between fixed service using high altitude platform stations (HAPs) and other services in 31/28 GHz bands. Wireless Personal Communications, 2002, 23: 3–14.

      21.Burns R, Mclaughlin CA, Leitner J, et al. TechSat 21: Formation design, control, and simulation. IEEE Aerospace Conference, 2000, 7: 19–25.

      22.Krieger G, Moreira A, Fiedler H, et al. TanDEM-X: A satellite formation for high-resolution SAR interferometry. IEEE Transactions on Geoscience and Remote Sensing, 2007, 45(11): 3317–3341.

      23.Amiot T, Douchin F, Thouvenot E, et al. The interferometric cartwheel: A multi-purpose formation of passive radar microsatellites. IEEE International Geoscience and Remote Sensing Symposium, 2002, 1: 435–437.

      24.D’errico M, Moccia A. The BISSAT mission: A bistatic SAR operating information with COSMO/SkyMed X-band radar. IEEE Aerospace Conference, 2002, 2: 809–818.

      25.Girard СКАЧАТЬ