Near-optimal low-complexity decoding of space-time codes for fixed wireless applications
US6188736A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1998 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Apr 21, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0848
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An improved multi-antenna receiver is realized for detecting signals transmitted by a multi-antenna transmitter by summing signals received at the plurality of receiver antennas after multiplying each by a respective constant. The summed signal is applied to a maximum likelihood detector. The respective constants, .lambda..sub.j, where j is an index designating a particular receiver antenna, are determined by evaluating the largest eigenvector of the matrix A, where .LAMBDA. is a vector containing the values .lambda..sub.j, and A is a matrix containing elements .alpha..sub.ij, which is the transfer function between the i.sup.th transmitter antenna to the j.sup.th receiver antenna. The .alpha..sub.ij terms are determined in the receiver in conventional ways.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.