| 摘要 |
PURPOSE: A signal processing method of a relay performing communication using physical network coding is provided to remove interference occurred in the relay efficiently. CONSTITUTION: A precoder design unit designs a first precoding vector using an eigenvector which makes the sum of a first minimum distance and a second minimum distance as a maximum eigenvalue (S410). The precoder design unit designs a second precoding vector by using a precoding vector maximizing the first minimum distance and a precoding vector maximizing the second minimum distance (S415). A precoder selection unit selects one precoding vector maximizing minimum distance between constellation points of transmission symbols transmitted from a first node and a second node at the same time, of the first precoding vector and the second precoding vector (S420). [Reference numerals] (AA) Start; (BB) Yes; (CC) No; (DD) End; (S400) Precoding which maximizes smaller value among a first minimum distance and a second minimum distance; (S405) Design precoding vector; (S410) Design an eigenvector which makes the sum of a first minimum distance and a second minimum distance as a maximum eigenvalue; (S415) Design a second precoding vector by using a precoding vector maximizing the first minimum distance and a precoding vector maximizing the second minimum distance; (S420) Select one precoding vector maximizing minimum distance between constellation points of transmission symbols transmitted from a first node and a second node at the same time, of the first precoding vector and the second precoding vector; (S425) Implement physical network cording |
