Title :
An advanced receiver with interference cancellation for broadband cable networks
Author :
Popper, Ambroise ; Buda, Fabien ; Sari, Hikmet
Author_Institution :
Juniper Networks, Paris, France
Abstract :
We present an advanced receiver with adaptive equalization and narrowband interference cancellation for the upstream channel in broadband cable networks. The interference canceller is based on noise prediction. The simulation results indicate that the presented receiver makes it possible to transmit a QPSK signal in the presence of 3 interferers with an individual power of -10 dBc with a SNR degradation of 1.8 dB only. For 16-QAM, the SNR degradation is 2.1 dB with 3 interferers at -15 dBc. We study the problems associated with the joint adaptation of the equalizer and the interference canceller and we describe an efficient algorithm that ensures both stability and fast convergence
Keywords :
adaptive equalisers; broadband networks; channel capacity; hybrid fibre coax networks; interference suppression; prediction theory; quadrature amplitude modulation; quadrature phase shift keying; receivers; QAM; QPSK signal; SNR; adaptive equalization; broadband networks; channel capacity; hybrid fiber/coax cable networks; interference cancellation; narrowband interference; noise prediction; receiver; Cable TV; Degradation; Downlink; Hybrid fiber coaxial cables; Interference cancellation; Narrowband; Noise cancellation; Quadrature amplitude modulation; Quadrature phase shift keying; Signal to noise ratio;
Conference_Titel :
Broadband Communications, 2002. Access, Transmission, Networking. 2002 International Zurich Seminar on
Conference_Location :
Zurich
Print_ISBN :
0-7803-7257-3
DOI :
10.1109/IZSBC.2002.991763
