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Data transmissions in a mobile communication system employing diversity and constellation rearrangement of a 16 QAM scheme
Data transmissions in a mobile communication system employing diversity and constellation rearrangement of a 16 QAM scheme
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机译:使用16 QAM方案的分集和星座图重排的移动通信系统中的数据传输
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摘要
The invention relates to methods for transmitting and receiving a data bit stream in a communication system using 16-QAM constellations. Further, an apparatus for performing the methods is provided. To improve the bit-error rate performance of the communication using the 16-QAM constellations the invention suggests the use 16-QAM constellations with specially selected mapping rules together with a special constellation rearrangement for creating different versions of the 16-QAM constellations. Further, the data stream is transmitted according to a diversity scheme employing different versions of the 16-QAM constellations obtained adhering the mapping rules and rearrangement rules defined by the invention.
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