Abstract
In this paper, the role of cooperation in managing interferencea fundamental feature of the wireless channelis investigated by studying the two-user Gaussian interference channel where the source nodes can both transmit and receive in full duplex. The sum capacity of this channel is obtained within a gap of a constant number of bits. The coding scheme used builds up on the superposition scheme of Han and Kobayashi for the two-user interference channel without cooperation. New upperbounds on the sum capacity are also derived. The same coding scheme is shown to obtain the sum capacity of the symmetric two-user Gaussian interference channel with noiseless feedback within a constant gap.
| Original language | English (US) |
|---|---|
| Article number | 5673849 |
| Pages (from-to) | 156-186 |
| Number of pages | 31 |
| Journal | IEEE Transactions on Information Theory |
| Volume | 57 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2011 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Information Systems
- Computer Science Applications
- Library and Information Sciences
Keywords
- Cooperation
- distributed beamforming
- feedback
- interference channel
- multiple-inputmultiple-output (MIMO) broadcast channel
- sum capacity