TITLE:
Channel Estimation for Powerline MC-CDMA System
AUTHORS:
Thiyagu Kathiyaiah
KEYWORDS:
Channel Estimation; MC-CDMA; PLC; LS
JOURNAL NAME:
International Journal of Communications, Network and System Sciences,
Vol.5 No.7,
July
25,
2012
ABSTRACT: Successful development of broadband over powerline is obviously a potential solution for wired communication systems with the existence of the powerline network. From past research, it is known that the powerline channel suffers from multipath fading, frequency selectivity and also impulsive noise. Multi Carrier Code Division Multiple Access (MC-CDMA) is a promising solution for an impulsive noise powerline channel. This paper starts with the MC-CDMA transmitter structure and focuses on powerline channel model, noise model and various types of available channel estimators. The main concern in Powerline Communication Systems is the existence of impulsive noise. The proposed pilot assisted channel estimation uses the modified least square estimator that reduces the effect of impulsive noise in the estimated channel impulse response.