Energy Efficiency Analysis of Cooperative Jamming in Cognitive Radio Networks With Secrecy Constraints
Energy Efficiency Analysis of Cooperative Jamming in Cognitive Radio Networks With Secrecy Constraints
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DOI：
10.1109/lwc.2015.2432802
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发表时间：
2015-05
影响因子：
6.3
通讯作者：
Frederic Gabry;Alessio Zappone;R. Thobaben;Eduard Axel Jorswieck;M. Skoglund
中科院分区：
文献类型：
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作者：
Frederic Gabry;Alessio Zappone;R. Thobaben;Eduard Axel Jorswieck;M. Skoglund
我们研究了认知无线电网络中的节能保密合作。特别是，我们考虑一个四节点的认知情况下，二次接收器被视为一个潜在的窃听相对于主传输。认知发射机应确保主消息不会通过使用协作干扰泄露给次用户。我们调查的最佳功率分配和功率分裂在我们的认知模型，以最大限度地提高二次能源效率（EE）保密约束下的二次发射机。我们制定和分析了一个重要的EE Stackelberg游戏之间的两个发射机，旨在最大限度地提高他们的效用。我们通过我们的几何模型说明了分析结果，突出了系统的EE性能和Stackelberg游戏的影响。
We investigate energy-efficient cooperation for secrecy in cognitive radio networks. In particular, we consider a four-node cognitive scenario where the secondary receiver is treated as a potential eavesdropper with respect to the primary transmission. The cognitive transmitter should ensure that the primary message is not leaked to the secondary user by using cooperative jamming. We investigate the optimal power allocation and power splitting at the secondary transmitter for our cognitive model to maximize the secondary energy efficiency (EE) under secrecy constraints. We formulate and analyze an important EE Stackelberg game between the two transmitters aiming at maximizing their utilities. We illustrate the analytical results through our geometrical model, highlighting the EE performance of the system and the impact of the Stackelberg game.