Sum-rate improved interference alignment for the M × 2 MIMO X channel

Younggap Kwon, Taewon Hwang

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this letter, we propose an improved interference alignment (IA) scheme for the M × 2 constant multiple-input multiple-output (MIMO) X channel composed of M transmitters and two receivers with multiple antennas each. The proposed IA scheme enhances the sum rate as well as achieving the DOF outerbound. To enhance the sum rate, the proposed scheme designs the transmit beamformers that make the desired signal space and the interference space as close to orthogonal as possible. Simulation results show that the proposed IA scheme achieves similar sum rate as the random search scheme but with less computational complexity.

Original languageEnglish
Article number6200379
Pages (from-to)1088-1091
Number of pages4
JournalIEEE Communications Letters
Volume16
Issue number7
DOIs
Publication statusPublished - 2012 May 22

Fingerprint

Multiple-input multiple-output (MIMO)
Alignment
Interference
Transmitters
Computational complexity
Random Search
Multiple Antennas
Antennas
Transmitter
Computational Complexity
Receiver
Simulation

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

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Sum-rate improved interference alignment for the M × 2 MIMO X channel. / Kwon, Younggap; Hwang, Taewon.

In: IEEE Communications Letters, Vol. 16, No. 7, 6200379, 22.05.2012, p. 1088-1091.

Research output: Contribution to journalArticle

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