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Spectrum sharing between IVC and RVC in multihop vehicular cognitive radio

机译：多跳车载认知无线电中IVC和RVC之间的频谱共享

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摘要

In this paper, we propose a spectrum sharing between multi-hop inter vehicle communication (IVC) and road-vehicle communication (RVC) in multi-hop vehicular cognitive radio. In spectrum shared multi-hop vehicular networks, each link has different signal to noise ratio (SNR) because of different distance of vehicles and avoiding interference toward a primary user (PU). In addition, since a vehicle has high mobility, SNR is dynamically changed in a short time. Therefore, the end-to-end throughput is fluctuated in a short time and it is difficult to establish stable communication by using multi-hop wireless networks. In order to solve this problem, we propose a utilization of vehicle mobility information (e.g. position, direction, and speed) to predict the link throughput of multi-hop networks with sharing the spectrum with PU. The spectrum of each link is assigned by using the result of throughput prediction of the end-to-end links. By using computer simulations, we confirm the effectiveness of the proposed method in term of end-to-end throughput.
机译：在本文中，我们提出了多跳车载认知无线电中的多跳车辆间通信（IVC）和道路车辆通信（RVC）之间的频谱共享。在频谱共享的多跳车载网络中，由于车辆的距离不同，并且避免了对主要用户（PU）的干扰，每个链路具有不同的信噪比（SNR）。另外，由于车辆具有高机动性，所以SNR在短时间内动态地改变。因此，端到端吞吐量在短时间内波动，并且难以通过使用多跳无线网络来建立稳定的通信。为了解决这个问题，我们提出利用车辆移动性信息（例如位置，方向和速度）来预测与PU共享频谱的多跳网络的链路吞吐量。通过使用端到端链路的吞吐量预测结果来分配每个链路的频谱。通过使用计算机仿真，我们在端到端吞吐量方面确认了所提出方法的有效性。

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