Spectral efficiency limit of bipolar signaling in incoherent optical CDMA systems. - Tung-Wah Frederick Chang; Edward H. Sargent (GLOBECOM, 2001)

Optical CDMA using 2-D codes: the optimal single-user detector. - Tung-Wah Frederick Chang; Edward H. Sargent (IEEE Commun. Lett., 2001)

Optimizing spectral efficiency in multiwavelength optical CDMA system. - Tung-Wah Frederick Chang; Edward H. Sargent (IEEE Trans. Commun., 2003)