A Novel Precoding Method for MIMO Systems with Multi-Cell Joint Transmission
VTC Spring（2010）
摘要
In wireless cellular systems, cell edge users can only achieve far less capacity than cell center uses because of low receive signal power and strong inter-cell interference. Base station joint transmission has been proven to be an effective method to mitigate this effect. In this paper, we propose a novel precoding scheme for non-coherent joint transmission where both base stations and mobile stations are equipped with multiple antennas. The proposed scheme aims to minimize the error probability of the overall system by means of ordered QR decomposition. Simulation results show that this scheme has a significant gain over existing schemes in terms of system error rate.
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关键词
multicell joint transmission,error probability,cellular radio,precoding,precoding method,system error rate,antenna arrays,noncoherent joint transmission,multiple antennas,mimo communication,wireless cellular systems,interchannel interference,base station joint transmission,intercell interference,interference suppression,error statistics,mimo systems,low receive signal power,mobile stations,adjacent channel interference,qr decomposition,wireless communication,throughput,matrix decomposition,mimo,mobile communication,error rate,mobile station,signal to noise ratio,base station,signal processing,interference,base stations
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