Open AccessSpectrally‐Efficient Decode‐and‐Forward Scheme Based on Constellation Rotation
Author(s) -
Sun Li,
Zhang Taiyi,
Lu Long,
Niu Hao
Publication year - 2010
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.10.0210.0012
Subject(s) - constellation , spectral efficiency , diversity gain , computer science , coding (social sciences) , scheme (mathematics) , coding gain , algorithm , rotation (mathematics) , electronic engineering , topology (electrical circuits) , decoding methods , telecommunications , mathematics , engineering , physics , electrical engineering , artificial intelligence , fading , channel (broadcasting) , mathematical analysis , statistics , astronomy
A spectrally‐efficient scheme is proposed for orthogonal decode‐and‐forward relaying. By utilizing constellation rotation, the scheme can achieve twice the spectral efficiency as that of the conventional one, with low implementation complexity. It can offer a full diversity order as well, whereas the loss in coding gain is less than 1 dB for practical environments.