This paper describes an SoC design for ADSL2/VDSL2 CPE Residential Gateways. The chip enables Triple Play: Data, Voice and Video over DSL along with bridging/routing capabilities. This 90nm CMOS technology chip integrates high speed data converters, DSL PHY, 4-VOIP channel Voice subsystem, MIPS based broadband controller and a range of networking peripherals.

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a vempatisr@ieee.org, b pamulavk@ieee.org, e tvakumar2000@yahoo.co.in Keywords: Influence function, maximal ratio combiner, M-estimator, Nakagami-m distribution, probability of error.Abstract. This paper presents the robust multiuser detection in synchronous direct sequence-code division multiple access (DS-CDMA) systems with Maximal Ratio Combiner (MRC) receive diversity over frequency-nonselective, slowly fading Nakagami-m channels in a non-Gaussian environment. Average probability of error is derived for decorrelating detector over single path Nakagami-m fading channel. A new M-estimator proposed to robustify the detector is studied and analyzed. Simulation results show that the new M-estimator outperforms linear decorrelating detector, the Huber, and the Hampel estimator based detectors.

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