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 language | English |
|---|---|
| Article number | 6200379 |
| Pages (from-to) | 1088-1091 |
| Number of pages | 4 |
| Journal | IEEE Communications Letters |
| Volume | 16 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2012 May 22 |
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All Science Journal Classification (ASJC) codes
- Modelling and Simulation
- Computer Science Applications
- Electrical and Electronic Engineering
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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 journal › Article
TY - JOUR
T1 - Sum-rate improved interference alignment for the M × 2 MIMO X channel
AU - Kwon, Younggap
AU - Hwang, Taewon
PY - 2012/5/22
Y1 - 2012/5/22
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84864145378&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84864145378&partnerID=8YFLogxK
U2 - 10.1109/LCOMM.2012.050912.120706
DO - 10.1109/LCOMM.2012.050912.120706
M3 - Article
AN - SCOPUS:84864145378
VL - 16
SP - 1088
EP - 1091
JO - IEEE Communications Letters
JF - IEEE Communications Letters
SN - 1089-7798
IS - 7
M1 - 6200379
ER -