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Selection of the Number of Used Subcarriers for OFDM Systems in Interference-limited Environments

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Abstract

One way to mitigate interference in Orthogonal Frequency Division Multiplexing systems is to use a reduced number of subcarriers instead of full resources. Assuming there is no information on the positions of used subcarriers of interferers, this paper discusses the optimal number of used subcarriers to maximize the system performance. If the noise level is negligible compared to the interference amount, the number of used subcarriers needs to be decreased inversely proportional to the number of users.

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Abbreviations

OFDM:

Orthogonal Frequency Division Multiplexing

SNR:

Signal-to-Noise Ratio

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Authors and Affiliations

  1. Dongguk University, Seoul, South Korea

    Minjoong Rim

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  1. Minjoong Rim
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Corresponding author

Correspondence to Minjoong Rim.

Additional information

This research was partly supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (No. 2010-0021429).

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Rim, M. Selection of the Number of Used Subcarriers for OFDM Systems in Interference-limited Environments. Wireless Pers Commun 64, 619–623 (2012). https://doi.org/10.1007/s11277-010-0203-5

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  • DOI: https://doi.org/10.1007/s11277-010-0203-5

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