Abstract
This paper diagnose the problem of exchanging images among multiple nodes of wireless networks through using DNC (digital network coding). Our algorithm is introduced new technique in simple design to transmitting image with more security through relay nodes. We used DNC technique for enhancing the throughput, efficiency and scalability, as well as resilience to attacks and eavesdropping of the wireless network. The relay node of the proposed algorithm network receiving and combining the two images of two transceiver nodes that need for exchanging the data using XOR MATLAB function and retransmit it over AWGN channel with different values. We using (512*512) RGB-JPEG images. The modulation scheme that used in the proposing algorithm 64-QAM, the receivers applying Median filter to improve the received data. Many standers are used to testing the algorithm such as PSNR, MSE, BER, the entropy and SSIM. The algorithm was simulated by MATLAB 2015a.
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