An interference alignment scheme for symmetric multicell multiuser channels

Khanh Pham; Kyungchun Lee

doi:10.1109/VTCSpring.2014.7022826

An interference alignment scheme for symmetric multicell multiuser channels

Khanh Pham, Kyungchun Lee

Dept. of Electrical and Information Engineering

Seoul National University of Science and Technology (SNUST)

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

The problem of interference alignment (IA) for uplink channels in multicell multiuser cellular networks with arbitrary numbers of transmit and receive antennas is considered. The proposed IA scheme aligns the interference from K users into a subspace established by the interference from p users among those K users. The value of p can be adaptively chosen based on the network configuration. The IA solution is realized by designing precoder matrices from a system of linear equations built upon the IA constraints. The closed-form result for the degrees of freedom (DoF) achievable by the proposed scheme is derived. Numerical analysis shows that, in most cases, the proposed scheme provides higher DoF than other related schemes.

Original language	English
Article number	7022826
Journal	IEEE Vehicular Technology Conference
Volume	2015-January
Issue number	January
DOIs	https://doi.org/10.1109/VTCSpring.2014.7022826
State	Published - 2014
Event	2014 79th IEEE Vehicular Technology Conference, VTC 2014-Spring - Seoul, Korea, Republic of Duration: 18 May 2014 → 21 May 2014

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10.1109/VTCSpring.2014.7022826

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title = "An interference alignment scheme for symmetric multicell multiuser channels",

abstract = "The problem of interference alignment (IA) for uplink channels in multicell multiuser cellular networks with arbitrary numbers of transmit and receive antennas is considered. The proposed IA scheme aligns the interference from K users into a subspace established by the interference from p users among those K users. The value of p can be adaptively chosen based on the network configuration. The IA solution is realized by designing precoder matrices from a system of linear equations built upon the IA constraints. The closed-form result for the degrees of freedom (DoF) achievable by the proposed scheme is derived. Numerical analysis shows that, in most cases, the proposed scheme provides higher DoF than other related schemes.",

author = "Khanh Pham and Kyungchun Lee",

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T1 - An interference alignment scheme for symmetric multicell multiuser channels

AU - Pham, Khanh

AU - Lee, Kyungchun

PY - 2014

Y1 - 2014

N2 - The problem of interference alignment (IA) for uplink channels in multicell multiuser cellular networks with arbitrary numbers of transmit and receive antennas is considered. The proposed IA scheme aligns the interference from K users into a subspace established by the interference from p users among those K users. The value of p can be adaptively chosen based on the network configuration. The IA solution is realized by designing precoder matrices from a system of linear equations built upon the IA constraints. The closed-form result for the degrees of freedom (DoF) achievable by the proposed scheme is derived. Numerical analysis shows that, in most cases, the proposed scheme provides higher DoF than other related schemes.

AB - The problem of interference alignment (IA) for uplink channels in multicell multiuser cellular networks with arbitrary numbers of transmit and receive antennas is considered. The proposed IA scheme aligns the interference from K users into a subspace established by the interference from p users among those K users. The value of p can be adaptively chosen based on the network configuration. The IA solution is realized by designing precoder matrices from a system of linear equations built upon the IA constraints. The closed-form result for the degrees of freedom (DoF) achievable by the proposed scheme is derived. Numerical analysis shows that, in most cases, the proposed scheme provides higher DoF than other related schemes.

UR - https://www.scopus.com/pages/publications/84988214480

U2 - 10.1109/VTCSpring.2014.7022826

DO - 10.1109/VTCSpring.2014.7022826

M3 - Conference article

AN - SCOPUS:84988214480

SN - 1550-2252

VL - 2015-January

JO - IEEE Vehicular Technology Conference

JF - IEEE Vehicular Technology Conference

IS - January

M1 - 7022826

T2 - 2014 79th IEEE Vehicular Technology Conference, VTC 2014-Spring

Y2 - 18 May 2014 through 21 May 2014

ER -

An interference alignment scheme for symmetric multicell multiuser channels

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