In this work, we propose an adaptive technique for interference mitigation based on Minimum Variance Distortionless Response (MVDR) beamforming for the uplink of a WiMAX-compliant system. This method is designed to cope with time-varying interference due to the asynchronous access of users in the neighboring cells. Channel parameters needed for beam-forming are obtained by exploiting both the preambles in the transmitted frames and the pilot subcarriers embedded in each information-bearing OFDM symbol. The effectiveness of the proposed technique is shown through numerical simulations of a standard WiMAX uplink over standard multipath channels.

Adaptive array processing for time-varying interference mitigation in IEEE 802.16 systems

NICOLI, MONICA BARBARA;SIMEONE, OSVALDO;
2006-01-01

Abstract

In this work, we propose an adaptive technique for interference mitigation based on Minimum Variance Distortionless Response (MVDR) beamforming for the uplink of a WiMAX-compliant system. This method is designed to cope with time-varying interference due to the asynchronous access of users in the neighboring cells. Channel parameters needed for beam-forming are obtained by exploiting both the preambles in the transmitted frames and the pilot subcarriers embedded in each information-bearing OFDM symbol. The effectiveness of the proposed technique is shown through numerical simulations of a standard WiMAX uplink over standard multipath channels.
2006
IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2006.
1424403294
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/258098
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