Error performance of dual header pulse interval modulation (DH-PIM) in optical wireless communications

The performance of dual header pulse interval modulation in distortion-free optical wireless channels is examined in terms of error performance, power requirement and achievable bit rate. Complete derivations: of the slot and packet error rates, optical pou cr and bandwidth requirements are presente d. The calculated results are confirmed by computer simulation of the propo sed scheme. The performance of DH-PIM is compared with PPM, PIM and OOK mod ulation schemes. It is shown that DH-PIM offers improved error performance compared with OOK and PIM, but is marginally inferior to PPM.