Patent ID: 8619893

Claim:
A receiving apparatus comprising: an inverse matrix multiplying portion which multiplies first and second receiving signal points corresponding to first and second receiving signals, respectively, received by first and second receiving antennas, respectively, by an inverse matrix of a channel matrix based on known signals included in the first and second receiving signals to generate converted first and second receiving signal points; a first arithmetic portion which determines one or more first sending signal candidate points based on the converted first receiving signal point; a second arithmetic portion which determines one or more second sending signal candidate points based on the converted second receiving signal point; and a determining portion which determines first and second sending signal points, corresponding to first and second sending signals sent from first and second sending antennas in a sending apparatus, from among the first and second sending signal candidate points so that a total distance based on at least a first distance regarding the first sending signal point and a second distance regarding the second sending signal point satisfies a given condition.