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An algorithm with reduced computational complexity for solving the transmit beamforming problem in the case of multiple co-channel multicast groups is considered. A new degree of freedom, which allows a trade-off between the transmission power, the number of antenna array elements and the computational time, is added. The optimization problem is transformed to a lower-dimensional optimization problem,...
In this paper we propose a scheme for radio frequency interference (RFI) mitigation in gigabit digital subscriber line (GDSL) systems using adaptive complex narrowband filter banks. This method is compared with other schemes for suppressing complex RFI, such as the frequency excision method and complex RFI identification and cancellation algorithm. The research shows that the different schemes present...
In this paper we put forward a scheme for suppressing narrowband interference by the use of adaptive narrowband filtering. We compare this method with other schemes for the suppression of complex narrowband interference in OFDM UWB systems, such as the frequency excision method and complex narrowband interference identification and cancelation algorithms. The study shows that the three schemes give...
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