To provide a detection system in which computational complexity can be remarkably reduced while maintaining bit error rate characteristics nearly equal with maximum likelihood detection in MIMO signal detection.
A metric generating circuit 31 corresponding to a metric generating means generates a metric corresponding to a transmission signal candidate on the basis of a reception signal inputted through terminals 29-1 to 29-4, channel information of a transmission line inputted from a terminal 30, and the transmission signal candidate outputted by a signal candidate generating circuit 44. A minimum metric detector 32 corresponding to a minimum metric detecting means inputs the metric and transmission signal candidate to search for a minimum metric, determines a bit of the transmission signal candidate corresponding to the minimum value and outputs the bit to a terminal 33 as a determination value. The transmission signal candidate generating circuit 44 corresponding to a transmission signal candidate generating means adds generation noise generated by a noise generating circuit 38 to the reception signal, performs linear synthesis using a weight coefficient determined from the channel information by a linear conversion circuit 35, then performs hard decision that is a sort of quantization, and generates the transmission signal candidate.
COPYRIGHT: (C)2008,JPO&INPIT
SUZUKI HIROSHI
SUYAMA SATOSHI
| JP2001160772A | 2001-06-12 | |||
| JP2006081131A | 2006-03-23 | |||
| JP2005217506A | 2005-08-11 | |||
| JP2005175544A | 2005-06-30 | |||
| JP2005175541A | 2005-06-30 |
| WO2005055483A1 | 2005-06-16 |