Compensation of Linear Multiscale Doppler for OFDM-Based Underwater Acoustic Communication Systems
المؤلفون المشاركون
Neasham, J. A.
Tsimenidis, Charalampos C.
Abdelkareem, A. E.
Sharif, B. S.
المصدر
Journal of Electrical and Computer Engineering
العدد
المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-16، 16ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2012-07-18
دولة النشر
مصر
عدد الصفحات
16
التخصصات الرئيسية
العلوم الهندسية و تكنولوجيا المعلومات
تكنولوجيا المعلومات وعلم الحاسوب
الملخص EN
In particular cases, such as acceleration, it is required to design a receiver structure that is capable of accomplishing time varying Doppler compensation.
In this paper, two approaches are taken into consideration in order to estimate the symbol timing offset parameter.
The first method employed to achieve an estimate of this particular parameter is based upon centroid localization and this prediction is reinforced by a second technique which utilises linear prediction, based on the assumption that the speed changes linearly during the OFDM symbol time.
Subsequently, the two estimations of the symbol timing offset parameter are smoothed in order to obtain a fine tuned approximation of the Doppler scale.
Additionally, the effects of weighting coefficients on smoothing the Doppler scale and on the performance of the receiver are also investigated.
The proposed receiver is investigated, incorporating an improvement that includes fine tuning of the coarse timing synchronization in order to accommodate the time-varying Doppler.
Based on this fine-tuned timing synchronization, an extension to the improved receiver is presented to assess the performance of two point correlations.
The proposed algorithms' performances were investigated using real data obtained from an experiment that took place in the North Sea in 2009.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Abdelkareem, A. E.& Sharif, B. S.& Tsimenidis, Charalampos C.& Neasham, J. A.. 2012. Compensation of Linear Multiscale Doppler for OFDM-Based Underwater Acoustic Communication Systems. Journal of Electrical and Computer Engineering،Vol. 2012, no. 2012, pp.1-16.
https://search.emarefa.net/detail/BIM-448860
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Abdelkareem, A. E.…[et al.]. Compensation of Linear Multiscale Doppler for OFDM-Based Underwater Acoustic Communication Systems. Journal of Electrical and Computer Engineering No. 2012 (2012), pp.1-16.
https://search.emarefa.net/detail/BIM-448860
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Abdelkareem, A. E.& Sharif, B. S.& Tsimenidis, Charalampos C.& Neasham, J. A.. Compensation of Linear Multiscale Doppler for OFDM-Based Underwater Acoustic Communication Systems. Journal of Electrical and Computer Engineering. 2012. Vol. 2012, no. 2012, pp.1-16.
https://search.emarefa.net/detail/BIM-448860
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-448860
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