دانلود رایگان مقاله برنامه نویسی FEC تطبیقی انتقال تصویر بی سیم رله شده

Abstract

High quality image transmission through smart devices requires high transmission rate, throughput and low Bit Error Rate (BER). At the same time, energy efficiency is always the top issue for the battery-based smart devices such as smart phone, tablets, etc. In this paper, an adaptive Forward Error Correction (FEC) coding and cooperative relayed image transmission system is proposed, through which both transmission quality and energy efficiency could be promised under complex mobile communication channel environment. There are four steps in the proposed scheme: (1) Discrete Wavelet Transform (DWT) and wavelet based Decomposition, (2) Pixel-Position (PP) information and Pixel-Value (PV) information split based unequal image resource allocation, (3) transmission through channel fading and AWGN communication environment, (4) multiple-relays and adaptive channel coding. Comparing to traditional methods, our proposed method is more practical to transmit high quality images through battery-limited smart phone platforms.

Conclusion

In this paper, we proposed an adaptive Forward Error Correction (FEC) coding and cooperative relaying method to promise both image transmission quality and energy efficiency. Due to the limitation of battery energy supply on smart phones, energy efficiency needs to be considered. Adaptive convolutional coding is applied for image data, protection during the transmission and Cooperative Diversity resist selective fading. Comparing to traditional methods, our proposed method is more practical to transmit high quality images through batterylimited smart phone platforms.