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Adaptive Coding and Modulation Performance over Nonlinear Mobile Satellite Channels | ||
| AUT Journal of Modeling and Simulation | ||
| مقاله 5، دوره 52، شماره 1، شهریور 2020، صفحه 39-46 اصل مقاله (957.5 K) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/miscj.2020.16464.5159 | ||
| نویسندگان | ||
| mahdis jalali* 1؛ Abbas Mohammadi2؛ mina baghani2 | ||
| 1electrical engineering department; amir kabir university; tehran; Iran | ||
| 2Department of electrical engineering; amir kabir university of technology; tehran; iran | ||
| چکیده | ||
| Mobile satellite communication experiences various channel state conditions. These channel impairments degrade overall system reliability and bandwidth efficiency. Dynamic link adaptation considers channel variations and adapts the transmission parameters respectively. This paper investigates link adaptation in mobile satellite communications through adaptive coding and modulation scheme. Average spectral efficiency improvement has been obtained by adaptation algorithms while the error probability constraints are met. To further extend our scenario in real world satellite systems, power amplifier nonlinearity is taken into account. Power amplifier nonlinear performance introduces distortion and signal to noise ratio (SNR) degradation. Hence, an optimized adapting procedure is proposed to overcome the resulting impairments. Moreover, propagation delay in satellite links are significantly large which outdates the channel state information (CSI) used for link adaptation decision. Channel states and fading conditions would change considerably in this long round trip time, especially in mobile user scenario. As a result, deploying a prediction method to predict time varying channel for reliable modulation and coding selection is required. The accuracy and performance of physical layer adaptation were improved by implementing channel power prediction, mitigating large round trip time and fast channel variations. Results indicate satisfactory link availability even in severe shadowing states of the channel. | ||
| کلیدواژهها | ||
| Adaptive coding and modulation؛ DVB-S2؛ Land mobile satellite channel؛ Satellite nonlinearity؛ Channel prediction | ||
| مراجع | ||
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[1] K. Baum, T. Kostas, P. Sartori & B. Classon, Performance characteristics of cellular systems with different link adaptation strategies, IEEE Transactions on Veh. Technol., 52(6), (2003) 1497–1507.
[2]S. T. Chung, A. J. Goldsmith, Degrees of freedom in adaptive modulation: a unified review,” IEEE Transactions on Communications, 49(9), (2001) 1561–1571.
[3]C. Morel, P. D. Arapoglou, M. Angelone, A. Ginesi, Link adaptation strategies for next generation satellite video broadcasting: A system approach, IEEE Transactions on Broadcasting, 61(4), (2015) 603–614.
[4]G. Gardikis, N. Zotos, A. Kourtis, Satellite media broadcasting with adaptive coding and modulation, Int. J. Digital Multimedia Broadcasting, 9, (2009).
[5]S. Cioni, R. De Gaudenzi, R. Rinaldo, Channel estimation and physical layer adaptation techniques for satellite networks exploiting adaptive coding and modulation, International Journal of Satellite Communications and Networking, 26(2), (2008) 157–188.
[6]V. Weerackody, Adaptive coding and modulation for satellite communication links in the presence of channel estimation errors, IEEE Military Communications Conf., San Diego, CA, USA, (2013) 622–627.
[7]V. Boussemart, H. Brandt, Performance assessment using ACM in DVB-S2/advanced DVB-RCS satellite systems, in Proc. 27th AIAA Int. Commun. Satellite Systems Conf., (2009) 212–220.
[8]S. Cioni, R. De Gaudenzi, and R. Rinaldo, Adaptive coding and modulation for the reverse link of broadband satellite networks, in Proc. IEEE Global Telecommun. Conf.,(2), (2004) 1101–1105.
[9]S. Cioni, R. De Gaudenzi, R. Rinaldo, Adaptive coding and modulation for the forward link of broadband satellite networks,” in Proc. IEEE Global Telecommun. Conf., 6, (2003) 3311–3315.
[10]H. Bischl, H. Brandt, T. De Cola, R. De Gaudenzi, E. Eberlein, N. Girault, E. Alberty, S. Lipp, R. Rinaldo, B.Rislow, J. A. Skard, J. Tousch, and G. Ulbricht, Adaptive coding and modulation for satellite broadband networks: From theory to practice, International Journal on Satellite Communications and Networking, 28(2), (2010) 59–111.
[11]Digital Video Broadcasting (DVB), Second generation framing structure, channel coding and modulation systems for Broadcasting, Interactive Services, News Gathering and other broadband satellite applications (DVB-S2), European Standard (Telecommunication series), ETSI EN 302 307 (2013).
[12]D. Tarchi, G.E. Corazza, A. Vanelli-Coralli, Reliability of adaptive transmission in state-based channels for land mobile satellite communications, in Proc. of IEEE ICC 2014, Sydney, Australia, (2014) 3582 –3587.
[13]D. Tarchi, G.E. Corazza, A. Vanelli-Coralli, A channel state-driven ACM algorithm for mobile satellite communications,” International Journal of Satellite Communications and Networking(2015).
[14]E. Casini, R. De Gaudenzi, A. Ginesi, DVB-S2 modem algorithms design and performance over typical satellite channels, International Journal on Satellite Communications and Networking, 22(3), (2004) 281–318.
[15]S. Falahati, A. Svensson, T. Ekman, M. Sternad, Adaptive modulation systems for predicted wireless channels, IEEE Transactions on Communications, 52(2), (2004) 307–316.
[16]G. E. Øien, H. Holm, K. J. Hole Channel prediction for adaptive coded modulation in Rayleigh fading, in Proc. Eur. Signal Processing Conf., Tolouse, France, (2002).
[17]D. Rhee, J. H. Kwon, H. W. Hwang, K. S. Kim, Adaptive modulation and coding on multipath Rayleigh fading channels based on channel prediction, in Proc. IEEE ICACT, 1, (2006) 95 -199.
[18]Y. D. Zheng, M. K. Dong, Y. Jin, J. J. Wu, CQI Prediction for Shadow Fading in LTE-Compatible GEO Mobile Satellite Communications System, Advanced Materials Research, (2013) 2137-2141.
[19]E. Lutz, D. Cygan, M. Dippold, F. Dolainsky, W. Papke, (1991) “The land mobile satellite communication channel-recording, statistics and channel model, IEEE Trans. Veh. Technol., 40(2), (1991) 375–386.
[20]C. Loo, “A statistical model for a land mobile satellite link,” IEEE Trans. Veh. Technol., 34(3), (1985) 122–127.
[21]F. Perez Fontan, M. Vazquez Castro, C. Enjamio Cabado, J. Pita Garcia, E. Kubista, Statistical modeling of the LMS channel, IEEE Trans. Veh. Technol., 50, (2001) 1549–1567.
[22]G. E. P. Box, G. M. Jenkins, G. C. Reinsel, Time series analysis: forecasting and control, 4th ed. Hoboken, N. J., John Wiley & Sons (2008).
[23]J. Hamilton, Time Series Analysis, Princeton University Press (1994). | ||
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