On blind interference alignment over homogeneous block fading channels

Qing F. Zhou; Q. T. Zhang

doi:10.1109/LCOMM.2012.073112.120833

On blind interference alignment over homogeneous block fading channels

Qing F. Zhou
, Q. T. Zhang

Department of Electrical Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

17 Citations (Scopus)

Abstract

We examine how to construct blind interference alignment (BIA) in a K-user 2x 1 broadcast network with homogeneous block fading, which means all users experience independent but identical block fading. When K=2, we determine a sufficient condition on the offset between the two users' fading blocks such that the constructed BIA achieves the optimal \frac{4}{3} degrees of freedom (DoF). Furthermore, we prove that, when K 4, it is almost guaranteed that the transmitter can find two users among the K users to form a 2-user 2x 1 broadcast channel over which BIA achieves \frac{4}{3} DoF. © 2012 IEEE.

Original language	English
Article number	6259790
Pages (from-to)	1432-1435
Journal	IEEE Communications Letters
Volume	16
Issue number	9
DOIs	https://doi.org/10.1109/LCOMM.2012.073112.120833
Publication status	Published - 2012

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

This work was supported by the City University of Hong Kong under Strategic Research Grant 7008109. Digital Object Identifier 10.1109/LCOMM.2012.073112.120833

Research Keywords

Blind IA
DoF
homogeneous fading channel

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10.1109/LCOMM.2012.073112.120833

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title = "On blind interference alignment over homogeneous block fading channels",

abstract = "We examine how to construct blind interference alignment (BIA) in a K-user 2x 1 broadcast network with homogeneous block fading, which means all users experience independent but identical block fading. When K=2, we determine a sufficient condition on the offset between the two users' fading blocks such that the constructed BIA achieves the optimal \textbackslash{}frac\{4\}\{3\} degrees of freedom (DoF). Furthermore, we prove that, when K 4, it is almost guaranteed that the transmitter can find two users among the K users to form a 2-user 2x 1 broadcast channel over which BIA achieves \textbackslash{}frac\{4\}\{3\} DoF. {\textcopyright} 2012 IEEE.",

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N2 - We examine how to construct blind interference alignment (BIA) in a K-user 2x 1 broadcast network with homogeneous block fading, which means all users experience independent but identical block fading. When K=2, we determine a sufficient condition on the offset between the two users' fading blocks such that the constructed BIA achieves the optimal \frac{4}{3} degrees of freedom (DoF). Furthermore, we prove that, when K 4, it is almost guaranteed that the transmitter can find two users among the K users to form a 2-user 2x 1 broadcast channel over which BIA achieves \frac{4}{3} DoF. © 2012 IEEE.

AB - We examine how to construct blind interference alignment (BIA) in a K-user 2x 1 broadcast network with homogeneous block fading, which means all users experience independent but identical block fading. When K=2, we determine a sufficient condition on the offset between the two users' fading blocks such that the constructed BIA achieves the optimal \frac{4}{3} degrees of freedom (DoF). Furthermore, we prove that, when K 4, it is almost guaranteed that the transmitter can find two users among the K users to form a 2-user 2x 1 broadcast channel over which BIA achieves \frac{4}{3} DoF. © 2012 IEEE.

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KW - DoF

KW - homogeneous fading channel

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DO - 10.1109/LCOMM.2012.073112.120833

M3 - RGC 21 - Publication in refereed journal

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JO - IEEE Communications Letters

JF - IEEE Communications Letters

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On blind interference alignment over homogeneous block fading channels

Abstract

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Research Keywords

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