Down link performance for a time division duplex broadcast network: Refined asymptotics for the power normalization constant

Philip Whiting

doi:10.1109/AusCTW.2014.6766444

Down link performance for a time division duplex broadcast network: Refined asymptotics for the power normalization constant

Philip Whiting^*

^*Corresponding author for this work

School of Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

Abstract

A TDD OFDM scheme for broadcasting using a Massive MIMO array to a group of mobiles is considered. Asymptotic formulas are developed (fixed number of users K, M antennas going to ∞) for the constant χM used to normalise the Zero Forcing (ZF) matrix. This quantity is the reciprocal square root of the trace of a generalized Wishart matrix. Its asymptotic distribution is shown to be normal and approximations are obtained for its mean and variance. In some transmission schemes it may be necessary to estimate or track the mean of χ which appears in the channel model after zero forcing. The results show that this quantity varies as the 4th moment of the fading amplitude.

Original language	English
Title of host publication	2014 Australian Communications Theory Workshop, AusCTW 2014
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	150-155
Number of pages	6
DOIs	https://doi.org/10.1109/AusCTW.2014.6766444
Publication status	Published - 2014
Event	2014 Australian Communications Theory Workshop, AusCTW 2014 - Sydney, NSW, Australia Duration: 3 Feb 2014 → 5 Feb 2014

Other

Other	2014 Australian Communications Theory Workshop, AusCTW 2014
Country/Territory	Australia
City	Sydney, NSW
Period	3/02/14 → 5/02/14

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10.1109/AusCTW.2014.6766444

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title = "Down link performance for a time division duplex broadcast network: Refined asymptotics for the power normalization constant",

abstract = "A TDD OFDM scheme for broadcasting using a Massive MIMO array to a group of mobiles is considered. Asymptotic formulas are developed (fixed number of users K, M antennas going to ∞) for the constant χM used to normalise the Zero Forcing (ZF) matrix. This quantity is the reciprocal square root of the trace of a generalized Wishart matrix. Its asymptotic distribution is shown to be normal and approximations are obtained for its mean and variance. In some transmission schemes it may be necessary to estimate or track the mean of χ which appears in the channel model after zero forcing. The results show that this quantity varies as the 4th moment of the fading amplitude.",

author = "Philip Whiting",

year = "2014",

doi = "10.1109/AusCTW.2014.6766444",

language = "English",

pages = "150--155",

booktitle = "2014 Australian Communications Theory Workshop, AusCTW 2014",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

note = "2014 Australian Communications Theory Workshop, AusCTW 2014 ; Conference date: 03-02-2014 Through 05-02-2014",

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Whiting, P 2014, Down link performance for a time division duplex broadcast network: Refined asymptotics for the power normalization constant. in 2014 Australian Communications Theory Workshop, AusCTW 2014., 6766444, Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 150-155, 2014 Australian Communications Theory Workshop, AusCTW 2014, Sydney, NSW, Australia, 3/02/14. https://doi.org/10.1109/AusCTW.2014.6766444

Down link performance for a time division duplex broadcast network: Refined asymptotics for the power normalization constant. / Whiting, Philip.
2014 Australian Communications Theory Workshop, AusCTW 2014. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2014. p. 150-155 6766444.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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Down link performance for a time division duplex broadcast network: Refined asymptotics for the power normalization constant

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