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

Lev GOLDFELD; Vladimir LYANDRES; Lior TAKO

doi:10.4236/ijcns.2010.32030

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International Journal of Communications,... > Vol.3 No.2, February 2010

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

Lev GOLDFELD, Vladimir LYANDRES, Lior TAKO

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

Abstract

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.

Keywords

MCM, Fading Channel, Adaptive Power Loading

Share and Cite:

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.

References

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