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A zero-forcing linear precoder for downlink multi-user LoS MIMO channels | IEEE Conference Publication | IEEE Xplore

A zero-forcing linear precoder for downlink multi-user LoS MIMO channels


Abstract:

In this paper we introduce an algorithm to design a zero-forcing linear precoder for downlink multi-user Line-of-Sight (LoS) MIMO systems. We observe that the existence o...Show More

Abstract:

In this paper we introduce an algorithm to design a zero-forcing linear precoder for downlink multi-user Line-of-Sight (LoS) MIMO systems. We observe that the existence of LoS component, changes the restrictions of conventional SVD-BD approach on channel dimensions and correlation of users. In addition, we find a new criterion that relates the received signal to noise ratio and optimal form of pure LoS channel matrix. We perceive that this algorithm improves performance nearly 1.5 dB in compare to the SVD-BD method for Rayleigh channels in the case of two users.
Date of Conference: 06-08 November 2012
Date Added to IEEE Xplore: 21 March 2013
ISBN Information:
Conference Location: Tehran, Iran

References

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