On overloaded vector precoding for single-user MIMO channels

De Miguel R, Gardasevic V, Müller R, Knudsen FF (2010)


Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2010

Journal

Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Book Volume: 9

Pages Range: 745-753

Article Number: 5403555

Journal Issue: 2

DOI: 10.1109/TWC.2010.02.090179

Abstract

We address the possibility of overloaded vector precoding in single user MIMO channels, i.e. the number of data streams is larger than the minimum of the number of antennas at transmitter and receiver side.We find that the convex vector precoding introduced in [1] allows for overloading while, with a certain probability, keeping the received signal free of interference. We find that the probability that overloading is not possible decays exponentially with the size of the system as long as the number of data streams is less than twice the minimum number of antennas. We give an explicit formula to calculate this probability for any antenna configuration in presence of correlated Rayleigh fading. Although overloading comes with the need for increased transmitted power, we show by means of the replica method that overloading up to 22% yields better spectral and power efficiency than without overload and spatial matched filter processing at the receiver. © 2010 IEEE.

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APA:

De Miguel, R., Gardasevic, V., Müller, R., & Knudsen, F.F. (2010). On overloaded vector precoding for single-user MIMO channels. IEEE Transactions on Wireless Communications, 9(2), 745-753. https://dx.doi.org/10.1109/TWC.2010.02.090179

MLA:

De Miguel, Rodrigo, et al. "On overloaded vector precoding for single-user MIMO channels." IEEE Transactions on Wireless Communications 9.2 (2010): 745-753.

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