Cognitive Radio: Sistim Radio Cerdas
DOI:
https://doi.org/10.22441/incomtech.v1i2.1100Kata Kunci:
Komunikasi nirkabel, radio kognitif, spectrum management, optimasi, interferensiAbstrak
Tuntutan komunikasi nirkabel yang handal dan kapasitas sistim yang
tinggi tidak terlepas dari ketersediaan resource berupa spectrum
frekuensi yang cukup. Pemanfaatan spectrum secara efisien yang
semaksimal mungkin dengan interferensi yang bisa ditoleransi adalah
tujuan penting sistim radio kognitif. Ada tiga langkah penting dalam
radio kognitif, observasi kondisi lapangan, mengambil keputusan
melalui suatu proses optimasi dan men-setting parameter pemancar. Hal
kunci dalam sistim radio kognitif adalah managemen spectrum yang
dinamis, suatu interval frekuensi yang bebas digunakan oleh pengguna,
di kala pengguna utamanya (primary user) sedang tidak menggunakan.
Penggunaannya tidak terikat pada suatu teknologi tertentu.
Unduhan
Referensi
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L. Doyle, Essentials of Cognitive Radio, Cambridge University Press, Cambridge, 2009.
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M. Alaydrus, Planar antenna design controlled by simulated annealing, Frequenz, vol. 63, no. 7-8, 2009, pp. 139-143.
D. E. Goldberg, Genetic Algorithms in Search, Optimization and Machine Learning, Addison-Wesley, New York, 1989.
R. L. Haupt, and D. H. Werner, Genetic Algorithm in Electromagnetics, Wiley, New Jersey, 2007.
P. J. M. van Laarhoven, and E. H. L. Aarst, Simulated Annealing: Theory and Applications, Springer, Netherland, 2009.
M. Alaydrus, Coupling Effects between Antenna Elements on the Performance of a Smart Antenna System, International Conference on Instrumentation, Communications and Information Technology (ICICI), Bandung, August 2005.
G. J. Foschini, “Layered space–time architecture for wireless communication in a fading environment when using multiple antennas,” Bell Labs Syst. Tech. J., vol. 1, p. 41–59, Autumn 1996.
Alaydrus, M., Calculation of MIMO Capacity in Complex Environments, The 9th International Conference Quality in Research (QIR), UI, Depok, September 2006
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