Abstract
A cognitive interference channel consists of two single-user links, one licensed to use the spectral resource (primary) and one unlicensed (secondary or cognitive). According to the cognitive radio principle, the activity of the secondary link should not interfere with the performance of the primary. The cognitive transmitter is allowed to access the channel only when sensed idle. In this paper, the advantages of having the cognitive transmitter acting as a "transparent relay" for the packets of the primary are investigated in terms of stable throughput (packets/slot). The analysis accounts for random packet arrivals, sensing errors due to fading at the secondary link, and power allocation at the secondary transmitter based on long-term measurements.
| Original language | English (US) |
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| Title of host publication | 44th Annual Allerton Conference on Communication, Control, and Computing 2006 |
| Publisher | University of Illinois at Urbana-Champaign, Coordinated Science Laboratory and Department of Computer and Electrical Engineering |
| Pages | 623-628 |
| Number of pages | 6 |
| Volume | 2 |
| ISBN (Electronic) | 9781604237924 |
| State | Published - Jan 1 2006 |
| Event | 44th Annual Allerton Conference on Communication, Control, and Computing 2006 - Monticello, United States Duration: Sep 27 2006 → Sep 29 2006 |
Other
| Other | 44th Annual Allerton Conference on Communication, Control, and Computing 2006 |
|---|---|
| Country/Territory | United States |
| City | Monticello |
| Period | 9/27/06 → 9/29/06 |
All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Computer Networks and Communications