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Digital signal space division multiplexing performing method for e.g. orthogonal frequency division multiplexed transmitter, involves determining power set transmitted by sub-groups of sub-carriers by minimizing overall-error criteria
Digital signal space division multiplexing performing method for e.g. orthogonal frequency division multiplexed transmitter, involves determining power set transmitted by sub-groups of sub-carriers by minimizing overall-error criteria
The method involves determining a set of powers transmitted by sub-groups of sub-carriers, where each of the determined power set conforms to an optimal frequency distribution of a total power transmitted for the set of powers between the sub-carriers of the set. The determination of the power set is performed by minimizing an overall-error criteria e.g. bit error rate, under the constraint that sum of determined power set is equal to a product of number of sub-carriers of sub-groups and a total mean power transmitted on the sub-carriers. Independent claims are also included for the following: (1) a transmitter for performing space division multiplexing of a signal to be transmitted on sub-carriers (2) a transmission system comprising a transmitter (3) a computer program comprising program instructions to perform a method of performing space division multiplexing of a signal to be transmitted on sub-carriers (4) a digital signal intended to be utilized in a transmitter (5) an information medium comprising instructions to perform a method of performing space division multiplexing of a signal to be transmitted on sub-carriers.
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