PROSPECTS OF THE VERY HIGH SPEED DIGITAL SUBSCRIBER LINE TECHNOLOGY IN AN EMERGING ECONOMY
NIGERIA AS REFERENCE
There has been a steady increase in demand for digital services provided over the public telephone line networks worldwide since the discovery that these plain old telephone lines
can support voice as well as data transmission. This paper describes the vast potentials of the very high speed digital subscriber line (VDSL) technology abounding in an emerging
economy like Nigeria. The evolutions of xDSL technology are also described as well as the
technology of the VDSL systems. The applicability and transmission environment of the
system and the various impairments to the VDSL systems are studied. Mitigation techniques to combat these impairments are also overviewed.