Multipath Dispersion in Optical Wireless Networks Employing Dh-pim
نویسندگان
چکیده
The performance of DH-PIM is analysed in the presence of intersymbol interference. The ceiling bounce model is used to model the non-directed indoor optical wireless channel. The packet transmission rate, channel impulse response, eye diagram and optical power requirements versus normalised delay spread are presented. Results are compared with other modulation schemes. Compared with PPM and DPIM, DH-PIM offers higher transmission rate and requires marginally higher optical power when the severity of the multipath dispersion is low. However, in a severe dispersive wireless environments, it shows better performance compared with its counterparts.
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تاریخ انتشار 2002