Abstract
In this paper, we propose an interference alignment (IA) scheme based on limited feedback for the two-cell interfering multiple input multiple output multiple access channel (MIMOMAC), which obtains the precoding vectors in the codebook directly so that the inter-cell interference (ICI) channels are most aligned. With the quantized precoding vectors, the receive beamforming filters are designed to cancel the impact of interuser interference (IUI) and reduce the residual ICI. In addition, we characterize the complexity of our proposed IA scheme. From simulation results, we demonstrate that the proposed scheme can provide the better sum rate performance under the same system configurations than the existing schemes which mitigate the interference leakage by aligning the ICI channels under limited feedback.
Original language | English |
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Title of host publication | 2015 IEEE 81st Vehicular Technology Conference, VTC Spring 2015 - Proceedings |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9781479980888 |
DOIs | |
Publication status | Published - 2015 Jul 1 |
Event | 81st IEEE Vehicular Technology Conference, VTC Spring 2015 - Glasgow, United Kingdom Duration: 2015 May 11 → 2015 May 14 |
Publication series
Name | IEEE Vehicular Technology Conference |
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Volume | 2015 |
ISSN (Print) | 1550-2252 |
Other
Other | 81st IEEE Vehicular Technology Conference, VTC Spring 2015 |
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Country/Territory | United Kingdom |
City | Glasgow |
Period | 15/5/11 → 15/5/14 |
Bibliographical note
Publisher Copyright:© 2015 IEEE.
Keywords
- Interference alignment
- Limited feedback
- Two-cell interfering multiple input multiple output multiple access channel
ASJC Scopus subject areas
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics