Abstract
In this paper, an Amplify-and-Forward (AF) cooperative strategy in interference limited networks is considered. In contrast to previously reported work, where the effect of interference is ignored, the effect of multi-user interference in AF schemes is analyzed. It is shown that the interference changes the statistical description of the conventional AF protocol and a statistical expression is subsequently derived. Asymptotic analysis of the expression shows that interference limits the diversity gain of the system and the related channel capacity is bounded by a stationary point. In addition, it is proven that previously proposed relay selection criteria for multi-relay scenarios become inefficient in the presence of interference. Based on a consideration of the interference term, two new selection criteria suitable for different system set-ups are proposed. A theoretical framework for selecting when to apply the proposed selection criteria is also presented.
| Original language | English |
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| Title of host publication | IEEE Wireless Communications and Networking Conference, 2009 |
| Publisher | IEEE |
| Pages | 362-367 |
| Number of pages | 6 |
| ISBN (Electronic) | 978-1-4244-2948-6 |
| ISBN (Print) | 978-1-4244-2947-9 |
| DOIs | |
| Publication status | Published - 2009 |
| Event | IEEE Wireless Communications and Networking Conference - Budapest, Hungary Duration: 5 Apr 2009 → 8 Apr 2009 |
Conference
| Conference | IEEE Wireless Communications and Networking Conference |
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| Abbreviated title | WCNC 2009 |
| Country/Territory | Hungary |
| City | Budapest |
| Period | 5/04/09 → 8/04/09 |