Research of WLAN Adaptive Modulation Technology Based on OFDM Subcarrier Amplitude Frequency Characteristics

Zeng You Sun; Xiao Fan Sun; Xia Ling

doi:10.4028/www.scientific.net/AMM.513-517.1187

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 513-517Research of WLAN Adaptive Modulation Technology...

Research of WLAN Adaptive Modulation Technology Based on OFDM Subcarrier Amplitude Frequency Characteristics

Abstract:

Expound the existing modulation mode of the present wireless local area network. Directing at the problem that when single modulation method conveys data with high speed in the frequency selective fading channel, the system throughput will be declined and the efficiency of the spectrum will be lowered . Put forward the scheme that the OFDM sub-carrier will use different modulation modes after dynamic groups by amplitude frequency response. Simulation results show that the scheme will lower the complexity of the system achievement, and can get a higher spectrum efficiency.

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Periodical:

Applied Mechanics and Materials (Volumes 513-517)

Pages:

1187-1191

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.513-517.1187

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Online since:

February 2014

Authors:

Zeng You Sun*, Xiao Fan Sun, Xia Ling

Keywords:

802.11a, Adaptive, Modulation, OFDM, Throughput, WLAN

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* - Corresponding Author

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