Optical Communications Slot error rate performance of DH-PIM with symbol retransmission for optical wireless links

SUMMARY In this paper we introduce the dual-header pulse interval modulation (DH-PIM) technique employing a simple retransmission coupled with a majority decision detection scheme at the receiver. We analytically investigate the slot error rate (SER) performance and compare results with simulated data for the symbol retransmissions rates of three, four and five, showing a good agreement. We demonstrate that the proposed scheme significantly reduces the SER compared with the standard single symbol transmission system, with retransmission rate of five offering the highest code gain of � 5dB. Copyright # 2007 John Wiley & Sons, Ltd.

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