In this paper we derive an iterative joint precoding and power allocation method for downlink MC-CDMA systems with multiple transmit antennas at the base station, which solves the maximum sum-rate problem, i.e. maximizes the system throughput under a constraint on the overall transmit power. It is seen that the proposed joint precoding and power control solution gives a great performance advantage over suboptimal solutions based on the Moore-Penrose, when at the base station only one antenna is used.
Maximum Sum-rate Linear Beamforming Strategies for Downlink TDD MC-CDMA Systems
BENVENUTO, NEVIO;BISAGLIA, PAOLA;BOCCARDI, FEDERICO
2005
Abstract
In this paper we derive an iterative joint precoding and power allocation method for downlink MC-CDMA systems with multiple transmit antennas at the base station, which solves the maximum sum-rate problem, i.e. maximizes the system throughput under a constraint on the overall transmit power. It is seen that the proposed joint precoding and power control solution gives a great performance advantage over suboptimal solutions based on the Moore-Penrose, when at the base station only one antenna is used.File in questo prodotto:
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