Patent ID: 7664195

Claim:
A receiver apparatus in a communication system including N transmitters and M receivers, with M greater than or equal to N, said receiver being one of said M receivers, said receiver comprising: a reception agent configured to simultaneously receive a superimposition of different messages sent by the N transmitters, which are spatially delocalized; a demodulating agent configured to decode a signal representing said superimposition of the different messages sent by the N transmitters received by the reception agent; a channel estimating agent configured to estimate a characteristic of a transmission channel between one of said N transmitters and said receiver by combining information of all of the different messages, the information of all the different messages based on said decoded signal representing said superimposition of the different messages sent by the N transmitters; and an equalizer filter, coupled to said reception agent, configured to minimize a mean squared error between an output of said equalizer filter and a corresponding real symbol, said equalizer filter having a feed forward filtering function and a feed back filtering function, wherein said equalizer filter is configured to minimize mean squared error according to: E ⁡ [  [ G - B ] ⁡ [ y n y n * d n d n * ] - b n  2 ] where, G is the feed forward function, B is the feed back function, y n is a symbol at input of G, d n is a symbol at input of B, b n is a real symbol.