Abstract
Diversity-multiplexing tradeoff (DMT) is a coarse high SNR approximation of the fundamental tradeoff between data rate and reliability in a slow fading channel. In this paper, we characterize the fundamental DMT of the two-user single antenna Gaussian interference channel. We show that the class of multilevel superposition coding schemes universally achieves (for all fading statistics) the DMT for the two-user interference channel. For the special case of symmetric DMT, when the two users have identical rate and diversity gain requirements, we characterize the DMT achieved by the Han-Kobayashi scheme, which corresponds to two level superposition coding.
| Original language | English (US) |
|---|---|
| Article number | 6006600 |
| Pages (from-to) | 5782-5793 |
| Number of pages | 12 |
| Journal | IEEE Transactions on Information Theory |
| Volume | 57 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 2011 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Information Systems
- Computer Science Applications
- Library and Information Sciences
Keywords
- Diversity-multiplexing tradeoff (DMT)
- interference channel
- multilevel superposition coding
- outage capacity
- slow fading