Abstract
In this paper, we investigate the outage performance of cognitive radio wireless network where secondary receiver does not suffer any interference from the primary user. In particular, we consider a system model that has a pair of primary transmitter and receiver as well as a pair of secondary transmitter and receiver, with a number of nearby idle secondary users acting as relays. Secondary relays help to maintain or even improve the outage performance of primary user while facilitating simultaneous secondary user transmission. We derive analytical results for the outage performance of primary and secondary link to prove the efficiency of proposed protocol. Simulations results demonstrate that the proposed protocol achieves large ergodic capacity and diversity gain for primary user while achieving substantial outage capacity for secondary user.
Original language | English |
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Title of host publication | 2012 International Conference on Computer Systems and Industrial Informatics, ICCSII 2012 |
DOIs | |
Publication status | Published - 1 Dec 2012 |
Event | 2012 International Conference on Computer Systems and Industrial Informatics, ICCSII 2012 - Sharjah, United Kingdom Duration: 18 Dec 2012 → 20 Dec 2012 |
Conference
Conference | 2012 International Conference on Computer Systems and Industrial Informatics, ICCSII 2012 |
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Country/Territory | United Kingdom |
City | Sharjah |
Period | 18/12/12 → 20/12/12 |
Keywords / Materials (for Non-textual outputs)
- Cognitive radio
- outage capacity
- outage probability
- overlay
- secondary relaying