RATE SELECTION WITH MARGIN SHARING

摘要

For rate selection with margin sharing in a system with independent rate per stream, SNR estimates are obtained for multiple data streams. Rates are then selected for the data streams based on the SNR estimates and such that at least one data stream has negative SNR margin, each remaining data stream has a non-negative SNR margin, and the total SNR margin for all data streams is non-negative. For rate selection with margin sharing in a system with a vector-quantized rate set, SNR estimates are obtained for usable transmission channels. The total SNR margin is determined for each rate combination based on the SNR estimates for the transmission channels. Each rate combination is associated with a specific number of data streams to transmit, a specific rate for each data stream, and a specific overall throughput. The rate combination with the highest overall throughput and non-negative total SNR margin is selected for use.