Information Fields Navigation with Piece-Wise Polynomial Approximation for High-Performance OFDM in WSNs
المؤلفون المشاركون
Shen, Pei-Yi
Zhang, Ying
Zhang, Liang
Wei, Wei
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2013، العدد 2013 (31 ديسمبر/كانون الأول 2013)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2013-03-23
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
الملخص EN
Since Wireless sensor networks (WSNs) are dramatically being arranged in mission-critical applications,it changes into necessary that we consider application requirements in Internet of Things.
We try to use WSNs to assist information query and navigation within a practical parking spaces environment.
Integrated with high-performance OFDM by piece-wise polynomial approximation, we present a new method that is based on a diffusion equation and a position equation to accomplish the navigation process conveniently and efficiently.
From the point of view of theoretical analysis, our jobs hold the lower constraint condition and several inappropriate navigation can be amended.
Information diffusion and potential field are introduced to reach the goal of accurate navigation and gradient descent method is applied in the algorithm.
Formula derivations and simulations manifest that the method facilitates the solution of typical sensor network configuration information navigation.
Concurrently, we also treat channel estimation and ICI mitigation for very high mobility OFDM systems, and the communication is between a BS and mobile target at a terrible scenario.
The scheme proposed here combines the piece-wise polynomial expansion to approximate timevariations of multipath channels.
Two near symbols are applied to estimate the first-and second-order parameters.
So as to improve the estimation accuracy and mitigate the ICI caused by pilot-aided estimation, the multipath channel parameters were reestimated in timedomain employing the decided OFDM symbol.
Simulation results show that this method would improve system performance in a complex environment.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Wei, Wei& Shen, Pei-Yi& Zhang, Ying& Zhang, Liang. 2013. Information Fields Navigation with Piece-Wise Polynomial Approximation for High-Performance OFDM in WSNs. Mathematical Problems in Engineering،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1032440
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Wei, Wei…[et al.]. Information Fields Navigation with Piece-Wise Polynomial Approximation for High-Performance OFDM in WSNs. Mathematical Problems in Engineering No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-1032440
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Wei, Wei& Shen, Pei-Yi& Zhang, Ying& Zhang, Liang. Information Fields Navigation with Piece-Wise Polynomial Approximation for High-Performance OFDM in WSNs. Mathematical Problems in Engineering. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-1032440
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1032440
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