Rotated Modulations for Outage Probability Minimization: a fading space approach
D Duyck, JJ Boutros… - 2010 IEEE International …, 2010 - ieeexplore.ieee.org
2010 IEEE International Symposium on Information Theory, 2010•ieeexplore.ieee.org
The outage probability limit is a fundamental lower bound on the word error rate of coded
communications systems. It is mainly determined by two parameters: the diversity order and
the coding gain. With linear precoding, the maximum achievable coding rate yielding full-
diversity can exceed the upper limit given by the standard Singleton bound. However, the
effect of precoding on the coding gain is not well understood. This paper analyzes linear
precoding from an information theoretical point of view and tries to optimize the coding gain …
communications systems. It is mainly determined by two parameters: the diversity order and
the coding gain. With linear precoding, the maximum achievable coding rate yielding full-
diversity can exceed the upper limit given by the standard Singleton bound. However, the
effect of precoding on the coding gain is not well understood. This paper analyzes linear
precoding from an information theoretical point of view and tries to optimize the coding gain …
The outage probability limit is a fundamental lower bound on the word error rate of coded communications systems. It is mainly determined by two parameters: the diversity order and the coding gain. With linear precoding, the maximum achievable coding rate yielding full-diversity can exceed the upper limit given by the standard Singleton bound. However, the effect of precoding on the coding gain is not well understood. This paper analyzes linear precoding from an information theoretical point of view and tries to optimize the coding gain. For discrete constellations, it is shown that constellation expansion together with one optimized precoding parameter is sufficient to approach the best outage achieved by a Gaussian alphabet, thus maximizing the coding gain.
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