Adaptive quantization for spectrum exchange information in mobile cognitive radio networks
To reduce the detection failure of the exchanging signal power onto the OFDM subcarrier signal at uniform quantization, dynamic subcarrier mapping is applied. Moreover, to addressing low SNR’s wall less than predetermine threshold, non-uniform quantization or adaptive quantization for the signal qua...
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Online Access: | http://eprints.utm.my/id/eprint/91104/1/SharifahKamilahSyedYusof2020_AdaptiveQuantizationforSpectrumExchangeInformation.pdf http://eprints.utm.my/id/eprint/91104/ http://dx.doi.org/10.11591/ijece.v10i4.pp3605-3614 |
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my.utm.911042021-05-31T13:29:25Z http://eprints.utm.my/id/eprint/91104/ Adaptive quantization for spectrum exchange information in mobile cognitive radio networks Arief Marwanto, Arief Marwanto Syed Yusof, Sharifah Kamilah Satria, Muhammad Haikal TK Electrical engineering. Electronics Nuclear engineering To reduce the detection failure of the exchanging signal power onto the OFDM subcarrier signal at uniform quantization, dynamic subcarrier mapping is applied. Moreover, to addressing low SNR’s wall less than predetermine threshold, non-uniform quantization or adaptive quantization for the signal quantization size parameter is proposed. μ-law is adopted for adaptive quantization subcarrier mapping which is deployed in mobility environment, such as Doppler Effect and Rayleigh Fading propagation. In this works, sensing node received signal power then sampled into a different polarity positive and negative in μ-law quantization and divided into several segmentation levels. Each segmentation levels are divided into several sub-segment has representing one tone signal subcarrier number OFDM which has the number of quantization level and the width power. The results show that by using both methods, a significant difference is obtained around 8 dB compared to those not using the adaptive method. Institute of Advanced Engineering and Science 2020 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/91104/1/SharifahKamilahSyedYusof2020_AdaptiveQuantizationforSpectrumExchangeInformation.pdf Arief Marwanto, Arief Marwanto and Syed Yusof, Sharifah Kamilah and Satria, Muhammad Haikal (2020) Adaptive quantization for spectrum exchange information in mobile cognitive radio networks. International Journal of Electrical and Computer Engineering, 10 (4). pp. 3605-3614. ISSN 2088-8708 http://dx.doi.org/10.11591/ijece.v10i4.pp3605-3614 |
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TK Electrical engineering. Electronics Nuclear engineering Arief Marwanto, Arief Marwanto Syed Yusof, Sharifah Kamilah Satria, Muhammad Haikal Adaptive quantization for spectrum exchange information in mobile cognitive radio networks |
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To reduce the detection failure of the exchanging signal power onto the OFDM subcarrier signal at uniform quantization, dynamic subcarrier mapping is applied. Moreover, to addressing low SNR’s wall less than predetermine threshold, non-uniform quantization or adaptive quantization for the signal quantization size parameter is proposed. μ-law is adopted for adaptive quantization subcarrier mapping which is deployed in mobility environment, such as Doppler Effect and Rayleigh Fading propagation. In this works, sensing node received signal power then sampled into a different polarity positive and negative in μ-law quantization and divided into several segmentation levels. Each segmentation levels are divided into several sub-segment has representing one tone signal subcarrier number OFDM which has the number of quantization level and the width power. The results show that by using both methods, a significant difference is obtained around 8 dB compared to those not using the adaptive method. |
format |
Article |
author |
Arief Marwanto, Arief Marwanto Syed Yusof, Sharifah Kamilah Satria, Muhammad Haikal |
author_facet |
Arief Marwanto, Arief Marwanto Syed Yusof, Sharifah Kamilah Satria, Muhammad Haikal |
author_sort |
Arief Marwanto, Arief Marwanto |
title |
Adaptive quantization for spectrum exchange information in mobile cognitive radio networks |
title_short |
Adaptive quantization for spectrum exchange information in mobile cognitive radio networks |
title_full |
Adaptive quantization for spectrum exchange information in mobile cognitive radio networks |
title_fullStr |
Adaptive quantization for spectrum exchange information in mobile cognitive radio networks |
title_full_unstemmed |
Adaptive quantization for spectrum exchange information in mobile cognitive radio networks |
title_sort |
adaptive quantization for spectrum exchange information in mobile cognitive radio networks |
publisher |
Institute of Advanced Engineering and Science |
publishDate |
2020 |
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http://eprints.utm.my/id/eprint/91104/1/SharifahKamilahSyedYusof2020_AdaptiveQuantizationforSpectrumExchangeInformation.pdf http://eprints.utm.my/id/eprint/91104/ http://dx.doi.org/10.11591/ijece.v10i4.pp3605-3614 |
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13.18916 |