Design of Wavelet-Encoded Symbol Constellations for Cyclostationary Spectrum Sensing
المؤلفون المشاركون
Valério de Souza, Pedro Thiago
Valério de Souza, Vinícius Samuel
Silveira, Luiz F. Q.
المصدر
Wireless Communications and Mobile Computing
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-01-21
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
تكنولوجيا المعلومات وعلم الحاسوب
الملخص EN
In mobile communication systems, the signals propagate through multipath over time-varying channels, which are subject to distortion caused by fading and Doppler shifts.
In order to minimize such distortions, coding techniques and transmission diversity can be employed, e.g., wavelet coding.
In this work, the wavelet coding is investigated in scenarios of cognitive radio systems with dynamic spectrum access.
Cognitive radio systems with dynamic spectrum access should be able to sense unoccupied frequency bands for opportunistic transmissions, as well as detect the presence of primary users when they occupy their licensed spectrum.
Therefore, an essential element for the accurate operation of cognitive radio systems encoded by wavelet coding is the ability to sense the signals encoded by this technique.
It is effectively demonstrated that the possibility of sensing such signals is associated with a suitable design of the signal constellation used in the modulation of the coded symbols.
The constellation design of these is performed via genetic algorithms using a multiobjective optimization approach.
The developed system is evaluated according to the robustness to time-varying flat fading through a bit error probability (BER) versus Eb/N0 analysis.
The spectral sensing ability is also addressed employing the cyclostationary analysis.
The results denote the feasibility of using wavelet coding in radio scenarios with dynamic spectrum access, with good performance in terms of BER and signal detection rates.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Valério de Souza, Pedro Thiago& Valério de Souza, Vinícius Samuel& Silveira, Luiz F. Q.. 2020. Design of Wavelet-Encoded Symbol Constellations for Cyclostationary Spectrum Sensing. Wireless Communications and Mobile Computing،Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1214990
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Valério de Souza, Pedro Thiago…[et al.]. Design of Wavelet-Encoded Symbol Constellations for Cyclostationary Spectrum Sensing. Wireless Communications and Mobile Computing No. 2020 (2020), pp.1-9.
https://search.emarefa.net/detail/BIM-1214990
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Valério de Souza, Pedro Thiago& Valério de Souza, Vinícius Samuel& Silveira, Luiz F. Q.. Design of Wavelet-Encoded Symbol Constellations for Cyclostationary Spectrum Sensing. Wireless Communications and Mobile Computing. 2020. Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1214990
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1214990
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر