PERFORMANCE OF ASYMMETRICAL DIGITAL SUBSCRIBER LINE  (ADSL)SYSTEM IN PRESENCE OF IMPULSE NOISE

Mahmood Ali, Talib; Kamel Gharkan, Sadiq

	PERFORMANCE OF ASYMMETRICAL DIGITAL SUBSCRIBER LINE (ADSL)SYSTEM IN PRESENCE OF IMPULSE NOISE
AL-TAQANI
Article 1, Volume 24, Issue 2, 2011, Pages 120-132
Authors
Talib Mahmood Ali; Sadiq Kamel Gharkan
Abstract
A digital subscriber line (DSL) technology provides transport of high-bit rate digital information over telephone lines. This high-speed digital transmission requires advanced signal processing to overcome transmission impairments resulting from: crosstalk noise from the signals present on the other wires in the same binder, radio noise and impulse noise. Impulse noise (IN) is nonstationary crosstalk from temporary electromagnetic events in the vicinity of phone lines. The effects are temporary and typically at much lower frequencies with higher power level and reduces the system performance if cannot be overcome to it. In this paper we focus on this effect on ADSL system for two channels (fast channel and interleaved channel).After that we study the performance of the system by calculating the probability of error (Pe) with and without impulse noise for two channels and comparing between them. The system was simulated by using MATLAB simulation tools, from the simulation results the Pe was found 6.4449x10-6 and 7.3472x10-5 for fast channel with the effect of AWGN disturbance and IN disturbance respectively at 26dB energy signal to noise ratio (Es/No) whereas the Pe was found 6.1242x10-6 for interleaved channel with the effect of AWGN disturbance and IN disturbance at 26dB energy signal to noise ratio (Es/No).Within the paper an overview is provided about the major building block of the simulator and some analysis results are present by depending on MATLAB simulink tools.

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