Interference Avoidance Transmission by Partitioned Frequency- and Time-Domain Processing

This paper presents an interference avoidance transmission technique for dynamic spectrum access (DSA). Generally, OFDM transmission induces high out-of-band emission due to the side-lobes of the transmitted sub-carriers. For a DSA based OFDM system, it is thus important to reduce the out-of-band em...

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Main Authors: Futatsugi, Y., Ariyoshi, M.
Format: Conference Proceeding
Language:English
Subjects:
Frequency domain analysis
Interference
Microphones
Peak to average power ratio
Vectors
Wireless communication
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Ariyoshi, M.
description This paper presents an interference avoidance transmission technique for dynamic spectrum access (DSA). Generally, OFDM transmission induces high out-of-band emission due to the side-lobes of the transmitted sub-carriers. For a DSA based OFDM system, it is thus important to reduce the out-of-band emission. Aiming at providing high suppression effect for an interference avoidance notch, an interference avoidance transmission by partitioned frequency- and time-domain processing (IA-PFT) is proposed. IA-PFT is configured by a partitioned combination of the CC processing in the frequency domain and windowing processing in the time domain. Computer simulations show that IA-PFT reduces the interference power spectrum density under the condition of a highly prioritized wireless microphone in white space. Moreover, it is shown that IA-PFT realizes transmission performance and PAPR performance as much as those attained by conventional interference avoidance methods.
doi_str_mv 10.1109/VETECS.2012.6239988
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subjects Frequency domain analysis
Interference
Microphones
Peak to average power ratio
Vectors
Wireless communication
title Interference Avoidance Transmission by Partitioned Frequency- and Time-Domain Processing
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