… CSI in a high mobility vehicular environment. In this paper, we study the spectrum and
power allocation problem in device-to-device (D2D)-enabled vehicular networks, where CSI of …

… we investigate a power allocation method without feedback of … Therefore, power allocation
using the outdated CSI feedback … as high feedback burden due to instantaneous CSI feedback …

… The associate editor coordinating the review of this paper and approving it for publication
was S. Cui. This work was supported by the Ultra High-Speed Mobile Information and …

… 1Since we consider a slow block-fading environment and only a few bits of CSI feedback
(per fading block) are required, the feedback delay is significantly less than the coherence time …

… and limited bandwidth in feedback channels and other factors. Therefore, our proposed
power allocation schemes obtained under imperfect CSI are useful in practical settings and …

… feedback, channel state information (CSI) loss and latency. With this concern, we formulate
a joint spectrum and power allocation problem for V2X communication with imperfect CSI. …

… quantized power allocation algorithm with limited feedback for the spectrum sharing scenario
… capacity with perfect CSI and the capacity with quantized power allocation under the given …

… Abstract—We propose continuous power allocation strategies … -based spectrum sharing,
where there are two transmit power … CSI and obtain a finite set of continuous power allocation …

… where σ 2 is the additive white Gaussian noise (AWGN) power spectral … via receiver feedback
the direct downlink channel gain, g … one time slot delay on the full CSI and feed it to the FP …

… power constraints. Our aim is to jointly design the quantization regions of all sensors CSI and
the corresponding power allocations… cooperative spectrum sensing and resource allocation …