Multiple Power Allocation for Energy Efficiency Improvement in Cognitive Radio

DOI

10.2991/csic-15.2015.71How to use a DOI?

Keywords

CR, Energy efficiency, Power allocation, Sensing

Abstract

This paper investigates the energy efficiency of sensing based spectrum sharing in cognitive radio network, where a secondary network can utilizes the primary network based the results of spectrum sensing. In the conventional sensing model, primary user is considered to remain active or inactive during the sensing slot. However, numerical results show that primary user could arrive at or depart from the band during the sensing slot of SU. A new three powers allocation strategy is proposed according to the effect of primary traffic. The resource allocation strategy is designed for the optimal energy-efficiency under the transmit power constraint and interference power constraint. Simulation results show that the energy efficiency of the proposed three power allocation is significantly improved compared with that of the conventional strategy.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Bing Ning
AU  - Shouyi Yang
AU  - Wanming Hao
AU  - Dawei Zang
PY  - 2015/07
DA  - 2015/07
TI  - Multiple Power Allocation for Energy Efficiency Improvement in Cognitive Radio
BT  - Proceedings of the 2015 International Conference on Computer Science and Intelligent Communication
PB  - Atlantis Press
SP  - 295
EP  - 298
SN  - 2352-538X
UR  - https://doi.org/10.2991/csic-15.2015.71
DO  - 10.2991/csic-15.2015.71
ID  - Ning2015/07
ER  -