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Robust Frequency-Domain Receivers for a Transmission Technique with Directivity at the Constellation Level | IEEE Conference Publication | IEEE Xplore

Robust Frequency-Domain Receivers for a Transmission Technique with Directivity at the Constellation Level


Abstract:

It was shown recently that we can decompose multilevel constellations as the sum of constant-envelope components which can be amplified and transmitted by separate antenn...Show More

Abstract:

It was shown recently that we can decompose multilevel constellations as the sum of constant-envelope components which can be amplified and transmitted by separate antennas, allowing power-efficient transmitters, together with directivity at the constellation level without changing on the radiation pattern associated to the set of antennas. However, errors in the direction estimates can lead to substantial performance performance degradation since the constellations seen at the receiver can be substantially distorted. In this paper we present an improved receiver that is designed taking into account constellation distortion effects inherent to errors in direction estimates. It is shown that these "smart" receivers, optimized taking into account the apparent constellation at the receiver side can substantially outperform conventional receivers that assume that assume undistorted constellations.
Date of Conference: 14-17 September 2014
Date Added to IEEE Xplore: 04 December 2014
Electronic ISBN:978-1-4799-4449-1
Print ISSN: 1090-3038
Conference Location: Vancouver, BC, Canada

References

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