This paper presents a new data compression method for current loop transmitters. In this method, the 4-20 mA current domain is divided into some equal pieces that are used for distinct data domain with a constant relative resolution, resulting in widening the signal span. This technique eliminated the need for high resolution ADC’s or DAC’s in communication of 4-20mA current loop signals. Furth...

New technologies make way for “intelligent” transmitters by integrating new functionalities: error measurement corrections, self-adjustment, self-diagnosis for measurement and transmitter status, online reconfiguration, and digital bidirectional communication. Industrialists are taking advantage of more accurate measurements, cost reductions and facilities. For industrial risk prevention, new d...

We demonstrate here a new dual receiver synchronization scheme that works because we are able to store samples over an entire bit period and then perform an intelligent comparison by methods we introduce. We discuss advantages for message camouflage of transmissions near the noise floor. Our results show better bit error probability performance in comparison to previously published methods. Thi...

This study describes intelligent transport image sensor communication (ITS-ISC) systems that use LED arrays as transmitters imitate traffic lights. Three signal-transmission schemes -luminance modulation, spatial and combined luminance modulation- array. However, their suitability for ITS-ISC has not been explored yet. Therefore, we compare the performance of these three under strong saturation...

We study a multi-user multiple-input multiple-output interference network in the presence of multiple reconfigurable intelligent surfaces (RISs). The entire system is described by using circuit-based model for transmitters, receivers, and RISs. This obtained leveraging electromagnetic tool mutual impedances, which accounts signal propagation coupling among closely-spaced scattering elements. An...

This letter investigates physical layer security in intelligent reflecting surface (IRS)-aided VL communication (VLC). Under the point source assumption, we first elaborate system model scenario with multiple legitimate users and one eavesdropper, where secrecy rate maximization problem is transformed into an assignment by objective function approximation. Then, iterative Kuhn-Munkres algorithm...

qumian hadith narrators in early third century played a major role in transmitting hadith legacy of kufa to this city. in addition to narration, classification, and explanation of hadiths, rereading qumian hadith narrators’ criteria for accepting and narrating hadiths is of great significance. muhammad b. khalid al-barqi is among outstanding scholars of that era who corrected and developed the ...