Title :
Effect of cable and system parameters on passband ADSL performance
Author :
van de Velde, H. ; Pollet, T. ; Moeneclaey, M.
Author_Institution :
Commun. Eng. Lab., Ghent Univ., Belgium
Abstract :
Investigates the bit error rate (BER) performance of a passband single-carrier QAM transceiver for asymmetric digital subscriber lines (ADSL), with additive white Gaussian noise (AWGN) and self far-end crosstalk (FEXT) as the main disturbances. The major difference with previous contributions on ADSL performance is that the authors present a simple approximate analytical expression fur the signal-to-noise ratio (SNR) margin, which clearly shows the effect of various cable and system parameters (such as loop length, transmit power, QAM constellation size, bit rate, ...) on ADSL performance. From this expression, they determine the optimum constellation size and the maximum achievable bit rate as a function of the loop length.<>
Keywords :
Gaussian noise; channel capacity; crosstalk; error statistics; quadrature amplitude modulation; subscriber loops; telecommunication cables; transceivers; white noise; BER performance; QAM constellation size; additive white Gaussian noise; analytical expression; asymmetric digital subscriber lines; bit error rate; bit rate; cable parameters; loop length; maximum achievable bit rate; optimum constellation size; passband ADSL performance; self far-end crosstalk; signal-to-noise ratio; single-carrier QAM transceiver; system parameters; transmit power; AWGN; Additive white noise; Bit error rate; Bit rate; Crosstalk; DSL; Passband; Quadrature amplitude modulation; Signal to noise ratio; Transceivers;
Journal_Title :
Communications, IEEE Transactions on
