![]() ![]() ![]() Different data rates use different modulation/coding schemes: It comprises optical link definitions, modulation, coding, cyclic redundancy check (CRC) and the framer. The mandatory IrPHY ( Infrared Physical Layer Specification) is the physical layer of the IrDA specifications. Main characteristics of this kind of wireless optical communication is physically secure data transfer, Line-of-Sight (LOS) and very low bit error rate (BER) that makes it very efficient. Thus, it has been implemented in portable devices such as mobile phones, laptops, cameras, printers, medical devices and many more. The main reason for using IrDA had been wireless data transfer over the “last one meter” using point and shoot principles. IrDA provides specifications for a complete set of protocols for wireless infrared communications and the name "IrDA" also refers to that set of protocols. The Infrared Data Association ( IrDA) is an industry driven interest group that was founded in 1993 by around 50 companies. ![]()
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