Title :
Receiver architectures for HomePNA 2.0
Author :
Bisaglia, Paola ; Castle, Robert J.
Author_Institution :
Hewlett-Packard Labs., Bristol, UK
Abstract :
The performance of the Home-PNA 2.0 physical layer is investigated using an appropriate channel model to characterize the home phone line network at around 7 MHz. This reveals considerable dispersion which causes intersymbol interference, so a number of equalizer structures are considered to improve the performance for each of the two possible system symbol rates. The two basic equalization techniques which are analyzed are symbol spaced and fractionally spaced decision feedback equalizers (DFEs) trained with a recursive least square (RLS) adaptation algorithm. Computer simulations show that the performance of the system can be greatly improved at the lower rate, but at the higher rate, which is not mandatory, performance can still be significantly degraded, even with a sizeable equalizer
Keywords :
decision feedback equalisers; intersymbol interference; least squares approximations; telephone lines; telephone sets; Home Phoneline Networking Alliance; HomePNA 2.0; Internet; RLS adaptation algorithm; channel model; computer simulations; decision feedback equalizers; equalization techniques; equalizer structures; fractionally spaced DFE; home phone line network; intersymbol interference; physical layer; receiver architectures; recursive least square adaptation algorithm; symbol rates; symbol spaced DFE; system performance; Adaptive systems; Algorithm design and analysis; Amplitude modulation; Decision feedback equalizers; Intersymbol interference; Laboratories; Least squares methods; Physical layer; Presence network agents; Transmitters;
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-7206-9
DOI :
10.1109/GLOCOM.2001.966376
