Edge Position Modulation For Wireless Infrared Communications Based On Novel 1/3 Rate Rll(5,12) Code

Driven by the Infrared Data Association (IrDA) wireless infrared communication has become a very popular and widely used method for short range data transmission between mobile devices like laptops, PDAs and mobile phones. Quality and speed of infrared communications are mainly limited by the bandwidth of the infrared transceivers. Therefore it is important to use a modulation technique with high bandwidth efficiency, while simultaneously maintaining low bit error rate and high power efficiency. Consequently, IrDA has continuously improved the modulation techniques of its standards by introducing Return to Zero Inverted (RZI) for the Serial Infrared (SIR) standard, 4 Pulse Position Modulation (4-PPM) for the Fast Infrared (FIR) standard and HHH(1, 13) for the latest Very Fast Infrared (VFIR) standard. In [1], [2] and [3] the authors have presented a novel modulation scheme called Edge Position Modulation (EPM), which offers both increased bandwidth efficiency and increased power efficiency over the previous methods. This paper shall now analyze the reliability of EPM by investigating the quantization error and sampling error robustness.