Abstract
Interference alignment (IA) needs multiple dimensions, which can be achieved by extending time, frequency or spatial domain. However, using time or frequency domain for alignment requires an exponential number of resources as the degrees of freedom increases. In addition, it is impractical to employ many number of antennas in the spatial-domain-based interference alignment system. In this paper, we consider MIMO-OFDM systems over K-user interference channels and present resource allocation criteria based on the IA scheme utilizing spatial and frequency domain simultaneously. Then, we propose a low complexity resource allocation scheme appropriate to both spatial and frequency domain IA. We show that a single additional subcarrier in the proposed resource allocation scheme is enough to improve the sum-rate performance close to the optimal performance.
| Original language | English |
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| Title of host publication | 2014 IEEE International Conference on Communications, ICC 2014 |
| Publisher | IEEE Computer Society |
| Pages | 5753-5758 |
| Number of pages | 6 |
| ISBN (Print) | 9781479920037 |
| DOIs | |
| Publication status | Published - 2014 Jan 1 |
| Event | 2014 1st IEEE International Conference on Communications, ICC 2014 - Sydney, NSW, Australia Duration: 2014 Jun 10 → 2014 Jun 14 |
Other
| Other | 2014 1st IEEE International Conference on Communications, ICC 2014 |
|---|---|
| Country/Territory | Australia |
| City | Sydney, NSW |
| Period | 14/6/10 → 14/6/14 |
ASJC Scopus subject areas
- Computer Networks and Communications