Energy Efficiency Analysis of Cooperative Jamming in Cognitive Radio Networks with Secrecy Constraints

• 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.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Nyckelord

cognitive radio

Cooperative jamming

energy efficiency

game theory

Security

Balloons

Jamming

Transmitters

Analytical results

Cognitive radio network

Energy efficiency analysis

Geometrical modeling

Optimal power allocation

Primary transmission

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)