Title:
16QAM方式の信号空間拡張
Document Type and Number:
Japanese Patent JP4575982
Kind Code:
B2
Abstract:
The invention relates to methods for transmitting and receiving a data bit stream in a communication system using a 16-QAM constellation. Further, an apparatus for performing the methods is provided. To provide a modulation and coding scheme using a signal space expansion and 16-QAM which improves the bit-error rate in comparison to QPSK modulated signals and still provides the possibility to implement coders and decoders with low complexity the invention suggests the use a 16-QAM constellation with specially selected mapping rules together with repetition coding (signal space expansion) and interleaving of the data stream to be transmitted.
Inventors:
Goricek Edler von Elpwald Alexander
Isamu Yoshii
Wenger Christian
Isamu Yoshii
Wenger Christian
Application Number:
JP2008509307A
Publication Date:
November 04, 2010
Filing Date:
May 04, 2005
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H04L27/34; H03M13/25; H03M13/27
Domestic Patent References:
| JP2003143041A |
Foreign References:
| US20020199147 | ||||
| US6195396 | ||||
| EP1235404A1 |
Other References:
U. Hansson et al.,Channel symbol expansion diversity-improved coded modulation for the Rayleigh fading channel ,Conference Record of 1996 IEEE International Conference on Communications(ICC). Converging Technologies for Tomorrow's Applications,米国,1996年,vol.2,Pages 891 - 895
Attorney, Agent or Firm:
Koichi Washida