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Current traffic control systems regulate traffic flows only by switching traffic lights according to historical data. Status-prediction and routing services also rely on historical data and as such the accuracy of such predictions cannot be fully relied upon. This paper models the traffic control problem as a multi-agent-multi-purpose system (MAMP) inspired by ant colony optimisation (ACO). Traffic...
In this paper the performances of zero-forcing (ZF) and maximum ratio transmission (MRT) are analyzed and compared in a downlink massive multiple-input multiple-output system. The system employs a large number of base station antennas serving multiple user terminals within the same cell. The achievable sum rate and the required downlink transmit power using each of the precoding schemes are derived,...
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