@article{3036519, title = "Performance evaluation of CDMA-DMT for 1-mm SI-POF short-range transmission links", author = "Pikasis, E. and Karabetsos, S. and Raptis, N. and Syvridis, D.", journal = "IEEE Photonics Technology Letters", year = "2012", volume = "24", number = "22", pages = "2042-2045", issn = "1041-1135", doi = "10.1109/LPT.2012.2218800", keywords = "Discrete multi-tone; Hadamard; short-range networking; Spreading codes; step-index plastic optical fibers (SI-POF); Walsh, Fiber optic sensors; Modulation; Optical fibers; Plastic optical fibers; Polymethyl methacrylates, Code division multiple access", abstract = "In this letter, the code division multiple access discrete multitone (CDMA-DMT) modulation scheme is experimentally investigated for transmission over an intensity modulation direct-detection link of 100 m of 1-mm polymethyl methacrylate step-index plastic optical fibers. CDMA-DMT is a multicarrier modulation scheme combining the merits of both CDMA and DMT and in which CDMA is utilized to perform a spreading operation of the data symbols in the frequency domain using orthogonal spreading codes. It is experimentally shown that CDMA-DMT performs better than conventional DMT in terms of achieved bit-error rate, for transmission rates in the range of 1 Gbps and over the same experimental configuration. © 1989-2012 IEEE." }