Interference cancellation in multiuser hybrid overlay cognitive radio
作者： Mohamed Najim , Eric Grivel , Guillaume Ferre , Ahmed Abdou
DOI: 10.5281/ZENODO.43702
关键词:
摘要: In this paper, we consider an overlay cognitive radio (CR) consisting of a primary macro-cell and small cells cooperative secondary base stations (SBS).We suggest studying hybrid CR where filter bank multicarrier (FBMC) is used for the users (SU) whereas (PU) are based on orthogonal frequency division multiplexing (OFDM). Compared to OFDM, FBMC has advantage reducing SU interference level that induced by differences between SBS PU carrier offsets (CFO). Our contribution threefold: 1/ derive expression due at receiver, 2/ propose use zero forcing beamforming (ZFBF) cancel interference, 3/ comparative study with OFDM both confirms efficiency proposed scheme.
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