Abstract
This paper investigates power allocation problems in OFDM-based cognitive radio (CR) networks operating in TV white space (TVWS). A new power allocation method is proposed to minimize the total interference introduced to the TV receivers while satisfying a minimum capacity threshold for secondary transmission. Performance of the proposed scheme is compared with other classical power loading methods such as water filling power allocation. The numerical results confirm that the proposed power allocation scheme achieves significant interference reduction compared to other power allocation methods.
Original language | English |
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Title of host publication | Proceedings of the 8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014, Gold Coast, Australia, 15-17 December 2014 |
Publisher | IEEE |
Number of pages | 6 |
ISBN (Print) | 9781479952557 |
DOIs | |
Publication status | Published - 2014 |
Event | International Conference on Signal Processing and Communication Systems - Duration: 15 Dec 2014 → … |
Conference
Conference | International Conference on Signal Processing and Communication Systems |
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Period | 15/12/14 → … |
Keywords
- cognitive radio networks
- interference
- orthogonal frequency division multiplexing
- receivers
- resource management
- television