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In the recent years the demand for real time video delivery has been increased. Hence, real time video distributers must ensure that the end-user quality-of-service is met (QoS). There are multiple conditions which can have influence on the transmission of video content, such as type of transmission, channel capacity, data loss, coding etc. Data loss mostly occurs in packet switched networks. This...
This experiment presents a robotic arm control in the 3D space using marker detection. The markers have different colors, and are placed at the joints of the robotic arm. The colored markers are distinguished with image recognition algorithm using stereo cameras. The control platform is an FPGA development board running Ubuntu Linux 12.04 LTS graphical operating system. There were two implementations...
Algorithms for data encryption are one of the most important parts of modern communication systems. In this paper the results of hardware implementation of AES256 and TDES algorithms are presented. AES256 and TDES are implemented as an IP core with AXI interface because of constant growth of data transfer requirements in modern embedded systems, in order to improve their capability. Beside details...
This paper proposes a QC-LDPC partial parallel architecture that implements a hard decision message passing algorithm based on Gallager-B decoding. The proposed architecture uses an optimized variable node unit, with adaptive threshold, suitable for irregular LDPC codes. We present implementation results for WiMAX rate 1/2 code for FPGA technology. These indicate a cost reduction of 2.5x in logic,...
In modern communication networks, the security aspect is very important. Encryption algorithms are used to protect user communication from eavesdropping. Symmetric key algorithms must be used to achieve high speed secured communication. In this paper, we propose and evaluate the pipelined implementation of the Camellia encryption algorithm which has been approved for use by the ISO/IEC. Camellia algorithm...
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