Abstract / Description of output
Energy detection (ED) has been widely used for detecting unknown deterministic signals in many wireless communication applications, e.g., cognitive radio, and ultra-wideband (UWB). However, the performance analysis of ED over slow fading channels is cumbersome, because it is difficult to derive closed-form expressions for the average probability of detection involving the generalised Marcum Q-function and the log-normal distribution. In this letter, we derive an approximation of the average probability of detection over a slow fading channel by replacing the log-normal distribution with a Wald distribution. In addition, we analyze the detection performance of the ED using a square-law combining scheme over multiple independent and identically distributed slow fading channels.
| Original language | English |
|---|---|
| Pages (from-to) | 924 -926 |
| Number of pages | 3 |
| Journal | IEEE Communications Letters |
| Volume | 14 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 1 Oct 2010 |
Keywords / Materials (for Non-textual outputs)
- Wald distribution
- average probability of detection
- cognitive radio
- computationally tractable model
- distributed slow fading channels
- energy detection performance
- generalised Marcum Q-function
- log-normal distribution
- square-law combining scheme
- ultrawideband communication
- wireless communication applications
- fading channels
- probability
- ultra wideband communication