دانلود رایگان مقاله لاتین برنامه نویسی تطبیقی انتقال تصویر بی سیم رله شده از سایت الزویر
عنوان فارسی مقاله:
برنامه نویسی FEC تطبیقی انتقال تصویر بی سیم رله شده
عنوان انگلیسی مقاله:
Adaptive FEC coding and cooperative relayed wireless image transmission
سال انتشار : 2015
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مقدمه انگلیسی مقاله:
1. Introduction
Comparing to traditional mobile communication terminals,larger display screen and higher data transmission rate are maincharacters of nowadays' smart devices, onto which hundreds ofapplications can be installed. To satisfy customer's expectations,newly released smart phones are coming with much higher pixelcamera for high quality pictures instead of regular sizes fromtraditional cameras. Thereby, due to limited battery energysupply, energy usage efficiency is required for high quality imagetransmission, especially under severely noisy channel.We apply Embedded Zero-tree Wavelet (EZW) for efficientimage compression. Firstly, Discrete Wavelet Transform (DWT)was used to extract the coefficient of an original image; after wavelet based decomposition, Pixel-Position information andPixel-Value information will be extracted form originalimage; after wavelet decomposition, image was extractedto large group of number ‘0’ which can be compressedlargely, followed by a couple number of none zero values.The large group of zeros contains Pixel-Position (PP) information,which is more important, the number of large valuecontaining Pixel-Value (PV) information, which is less importantfor image transmission [2]. In this paper, an adaptiveForward Error Correction (FEC) was applied on the importantpart of the image information, under bad communicationchannel, several mobile terminal as relays are used to set upa transmission network. For overcome the MIMO system'slimitation such as limited size and hardware complexity inwireless cellular system, Cooperative Diversity (CD) is used to‘extend’ the antenna number. Convolutional coding methodis also used for protect important part of image information(Pixel-Position), to achieve low BER and high data rate.Our contributions for this work are as follows:1. Unequally allocated energy to transmit important PixelPositioninformation and unimportant Pixel-Value information,due to the unequal importance of Pixel-Valueand Pixel-Position for image information containing.2. Proposed an adaptive Forward Error Correction (FEC)scheme, for achieving low BER under multipath fadingchannel and AWGN channel environment. Plus, evaluatedthe BER performance under complex channel conditions.3. Applied Cooperative Diversity with convolutional codingand multiple-relays in quality promised image transmissionchannel. Also, we analyzed the tunable coding ratioand relay number performance.
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کلمات کلیدی:
Adaptive FEC coding and cooperative relayed wireless image ... - DOAJhttps://doaj.org/article/cfe246311ef0414eb4e2a4af8c027156Information about the open-access article 'Adaptive FEC coding and cooperative relayed wireless image transmission' in DOAJ. DOAJ is an online directory that ...[PDF]Adaptive Cooperative FEC Based on Combination of Network Coding ...citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.635.9605&rep=rep1...by Y Jin - 2014 - Cited by 1 - Related articlesAdaptive Cooperative FEC Based on. Combination of Network Coding and Channel. Coding for Wireless Sensor Networks. Yong Jin and Peng Ruan. Scholl of ...Energy-Aware Adaptive Cooperative FEC Protocol in MIMO Channel ...https://www.hindawi.com/journals/jece/2013/891429/by Y Jin - 2013 - Cited by 3 - Related articlesJun 23, 2013 - Numerical and simulation results show that the joint design of MIMO and adaptive cooperative FEC based on RS codes can achieve ...An adaptive FEC code control algorithm for mobile wireless sensor ...ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=6387991For better performance over a noisy channel, mobile wireless networks transmit packets with forward error correction (FEC) code to recover corrupt bits wit.Performance Analysis of Network Coded Cooperation ... - IEEE Xploreieeexplore.ieee.org/iel7/97/7017605/07046340.pdfby TX Vu - 2015 - Cited by 5 - Related articlesFeb 24, 2015 - Cooperation with Channel Coding and Adaptive. DF-Based Relaying ... not take Forward Error Correction (FEC) coding into account, which is ...Cognitive Wireless Networks: Concepts, Methodologies and Visions ...https://books.google.com/books?isbn=1402059787Frank H. P. Fitzek, Marcos D. Katz - 2007 - ComputersAdaptive cooperation based on the decoding result relies on implicit CSI in ... In the simplest case, repetition coding, the same FEC code is employed at the relay ...Adaptive FEC coding and cooperative relayed wireless ... - infona.plhttps://www.infona.pl/resource/bwmeta1.element.elsevier-2abf45d1.../contributorsElectrical and Computer Engineering Department, University of Massachusetts, Dartmouth, 285 Old Westport Road, North Dartmouth, MA 02747, USA ...
