This paper deals with a variable rate Discrete Multi-tone Modulation (DMT) system for broadband PowerLine Communications (PLCs), based on the bit-loading algorithm proposed by Leke and Cioffi. In the proposed system a suitable LMS channel estimator is considered, which is based on the insertion of a Training Sequence (TS). The proposed approach will be compared with the ideal channel estimates, showing its effectiveness. Moreover, different TS lengths will be compared. The performance of the system, expressed in terms of Bit-Rate and Bit Error Rate (BER), with and without an estimation error is derived by simulation under the assumption of frequency-selective multipath fading channel and additive colored Gaussian noise, according to the inbuilding networks model.

A Rate Adaptive Bit-loading Algorithm for a DMT Modulation System for in-Building Power Line Communications / Morosi Simone, Marabissi Dania, Fantacci Romano, Del Re Enrico, Del Santo Nicola. - STAMPA. - (2005), pp. 403-407. (Intervento presentato al convegno IEEE Global Telecommunications Conference, 2005. GLOBECOM '05 tenutosi a St. Louis, MO; United States nel 2005 Nov./Dec.) [10.1109/GLOCOM.2005.1577658].

A Rate Adaptive Bit-loading Algorithm for a DMT Modulation System for in-Building Power Line Communications

Morosi Simone;Marabissi Dania;Fantacci Romano;Del Re Enrico;
2005

Abstract

This paper deals with a variable rate Discrete Multi-tone Modulation (DMT) system for broadband PowerLine Communications (PLCs), based on the bit-loading algorithm proposed by Leke and Cioffi. In the proposed system a suitable LMS channel estimator is considered, which is based on the insertion of a Training Sequence (TS). The proposed approach will be compared with the ideal channel estimates, showing its effectiveness. Moreover, different TS lengths will be compared. The performance of the system, expressed in terms of Bit-Rate and Bit Error Rate (BER), with and without an estimation error is derived by simulation under the assumption of frequency-selective multipath fading channel and additive colored Gaussian noise, according to the inbuilding networks model.
2005
Proc. of IEEE Global Telecommunications Conference
IEEE Global Telecommunications Conference, 2005. GLOBECOM '05
St. Louis, MO; United States
2005 Nov./Dec.
Morosi Simone, Marabissi Dania, Fantacci Romano, Del Re Enrico, Del Santo Nicola
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/238230
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