Two Algorithms of Power Loading for MCM System in Nakagami Fading Channel

DOI: 10.4236/ijcns.2010.32030   PDF   HTML     3,738 Downloads   6,625 Views  


We consider two non-iterative algorithms of adaptive power loading for multicarrier modulation (MCM) system, The first one minimizes the average power of the system transmitter and ensures the preset average bit-error rate, while the second reduces the average transmitting power subject to the given values of demanded bit-error rate and of the outage probability. The algorithms may be used for power-efficient management of the up-link in cellular communication, where mobile terminals use rechargeable batteries, or of the downlink in satellite communication with solar power source of a transponder. We present performance analysis of the adaptive MCM systems supported by computer simulation for the case of the m-Nakagami fading and additive white Gaussian noise in the forward and backward channels. Evaluation of the power gain of the proposed strategies and its comparison with uniform power loading shows that the gain depends on the fading depth and average signal to noise ratio in the system sub-channels.

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L. GOLDFELD, V. LYANDRES and L. TAKO, "Two Algorithms of Power Loading for MCM System in Nakagami Fading Channel," International Journal of Communications, Network and System Sciences, Vol. 3 No. 2, 2010, pp. 208-211. doi: 10.4236/ijcns.2010.32030.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] L. Goldfield, V. Lyandres and D. Wulich, “Minimum BER power loading for OFDM in fading channel,” IEEE Transaction on communications, Vol. 49, pp. 14–18, January 2001.
[2] L. Goldfield, “Adaptive OFDM system in fading channel,” European Transactions on Telecommunications, Vol. 14, pp. 293–300, February 2002.
[3] N.Y. Ermolova and B. Makarevich, “Power and subcarrier allocation algorithms for OFDM systems,” in Proc. IEEE 16-th International Symposium on Personal, Indoor and Mobile Radio Communications, pp.352–356, 2005.
[4] L. Goldfeld and V. Lyandres “Minimum power loading strategy for multicarrier system in the capacity constrained frequency selective channel,” Electronic Letters, Vol. 41, No. 25, pp. 1386–1388, December 2005.
[5] C. Mutti, D. Dahlhaus and T. Hunziker, “Optimal power loading for multiple-input single-output OFDM systems with bit level interleaving,” IEEE Transaction on Wireless Communications, Vol. 5, pp. 1886–1895, May 2006.
[6] A. Goldsmith, “Wireless Communications”, Cambridge University Press, 2005.

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