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SAIEE Africa Research Journal

On-line version ISSN 1991-1696
Print version ISSN 0038-2221


VAN WYK, J.H.  and  LINDE, L.P.. Performance evaluation of a gigabit DSL modem using super orthogonal complete complementary codes under practical crosstalk conditions. SAIEE ARJ [online]. 2017, vol.108, n.4, pp.144-149. ISSN 1991-1696.

This paper describes the unique performance evaluation results of a Gigabit Digital Subscriber Line modem that provides Multi-user-interference-free communication, by incorporating Super Orthogonal Complete Complementary spreading into the existing xDSL modem architecture. The GDSL modem was tested under practical crosstalk conditions, using the Network Interface, Power, and Protection (NIPP) Committee MIMO Crosstalk Model. It was found that the GDSL modem provides acceptable bit error rate performance for a fully loaded system, even for very short twisted pairs. A unique observation from these performance evaluation tests is than the non-linear behaviour of NEXT and FEXT creates an orthogonality distortion effect on the correlation properties of the SOCC code family.

Keywords : Gigabit Digital Subscriber Line (GDSL); Super Complete Complementary (SOCC); MUI-free; Performance evaluation; MIMO crosstalk; FEXT; NEXT; crosstalk.

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