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Spectrally‐Efficient Decode‐and‐Forward Scheme Based on Constellation Rotation |
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| Authors: | Li Sun Taiyi Zhang Long Lu Hao Niu |
| Abstract: | 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. |
| Keywords: | Spectral efficiency diversity order decode‐and‐forward constellation rotation |