In this paper, aiming at outdoor cognitive electric vehicle (EV) network, a novel anti-interference robust communication scheme is studied over mixed visible light communication (VLC)/radio-frequency (RF) links. Considering underlay cognitive mode, one EV in the second network can help the primary user to communicate with another jammed EV through VLC/RF channels, which is under the interference constraint defined by the primary system. Moreover, the RF channels in the investigated network experience Nakagami-m fading while the VLC channels follow Rician fading. Considering relative channel estimation error, the closed-form system outage performance of this scheme is derived, which is perfectly match simulation results. Finally, the superiority of the mixed VLC/RF scheme to only RF scheme can be obviously observed through numerical results under different shape index of Rician fading, RF channel fading parameter and channel state information (CSI) conditions.

暂无