Performance of an Indoor Optical Wireless PPM-CDMA System with Interference Cancellation schemes
نویسندگان
چکیده
A new puke position modulation code division multiple access (PPM-CDMA) system is proposed for an indoor optical wireless channeL As a signature sequence for CDMA an optical orthogonal code (OOC) is used To reduce multiple access interference, two interference cancellation schemes are employed: decorrelating detection and successive interference cancellation (SIC). The bit error rate of the proposed system is calculated for a conventional receiver, a decorrelaiing receiver, and a receiver with SIC. It is shown that PPM-CDMA systems with both decorrelating detection and SIC achieve signifcant SNR improvement over the system with a conventional receiver.
منابع مشابه
Benefits of wavelength translation in datagram all-optical networks
multiple access in non-directed diffuse optical wireless channel'. Proc. IEEE VTC' 96, 1996, pp. 1381-1384 3 HWANG, S s , P A R K , C., and LEE,. J.H.: 'Performance of an indoor optical wireless PPM-CDMA system with interference cancellation schemes'. Proc. IEEE PIMRC '97, 1-4 September 1997, Helsinki, Finland, (to appear) 4 JAWAD, F R.K c , SALEHI, A , and WEI. V.K : 'Optical orthogonal codes:...
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