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We consider the multiuser frequency allocation problem in single-input single-out put (SISO) LTE-A type uplink with carrier aggregation (CA). The increased bandwidth in LTE-A system allows orthogonal allocation of subcarriers among users. We consider both consecutive and distributed frequency allocation strategies with per user transmit power constraints and more realistic power amplifier models accounting...
We consider the sum power minimization problem with user specific rate constraint in the context of uplink LTE-A type system with carrier aggregation (CA), more precisely, inter-band CA. The increased bandwidth in LTE-A system allows orthogonal allocation of subcarriers among users. If time sharing or non-linear receivers are assumed, the problem becomes convex and can be optimally solved by standard...
This article addresses intermodulation challenges in carrier aggregation (CA) and multicluster type transmission scenarios in mobile transmitters. In such transmission schemes, emerging in 3GPP LTE-Advanced mobile cellular radio evolution, the spectrum of the signal entering the transmit power amplifier (PA) is of non-contiguous nature and thus severe intermodulation is created which may violate the...
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