In this paper, an active-user cooperative scheme for overlay cognitive radio (OCR) vehicle-to-vehicle (V2V) communication system based on three-dimensional (3D) channel model is proposed. Based on the proposed cooperative scheme, the achievable rate regions of the primary users (PU) and secondary users (SU) with outdated channel state information (CSI) are analyzed. According to the tradeoff between the achievable rates of PU and SU, three power allocation schemes are proposed using outdated CSI. The performance of PU and SU in terms of outage events are analyzed. Based on the analytical framework, the simulation results for achievable rate and outage probabilities are provided. And the impact of power allocation coefficient of PU and SU, outdated CSI, signal-to-noise ratio(SNR) and the codes cross-correlation on the proposed active-user cooperation is analyzed. The simulation results are compared with validated analysis to confirm the theoretical analysis.


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    Title :

    Power Allocation and Performance Analysis in Overlay Cognitive Cooperative V2V Communication System With Outdated CSI


    Contributors:
    Liang, Xiaolin (author) / Li, Yingjie (author) / Cao, Wangbin (author) / Zhao, Shuhuan (author) / Liu, Shuaiqi (author) / Zhao, Xiongwen (author)

    Published in:

    Publication date :

    2022-11-01


    Size :

    1915209 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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