Abstract
In this paper, we study the effect of secondary-user (SU) interference on the performance of a sensing node in a multiuser dynamic spectrum access network. We modify the traditional binary hypothesis problem to account for the interference generated within such a network and characterize the effect of various parameters on the overall performance of the sensing node. Specifically, we note that computing the average false-alarm probability through a direct method is generally tasking; therefore, we adopt a simplified approach to averaging out the random interferer power in terms of the moment-generating functions (MGFs). To this end, new and accurate expressions have been developed to calculate the false-alarm probability of a sensing node employing energy detection under SU interference. © 1967-2012 IEEE.
| Original language | English |
|---|---|
| Article number | 6425522 |
| Pages (from-to) | 2570-2578 |
| Number of pages | 9 |
| Journal | IEEE Transactions on Vehicular Technology |
| Volume | 62 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2013 |
Keywords
- Energy detection (ED)
- interference
- spectrum sensing