Linqiong Jia, Shicheng Feng, Yijin Zhang, Jin-Yuan Wang
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引用次数: 0
摘要
可见光通信(VLC)是射频通信(RF)的一种前景广阔的互补技术,可通过重复使用 LED 路灯来满足智能车辆通信对服务质量(QoS)的高要求。本文提出了一种车载 VLC/RF 通信网络的混合切换方案,通过同时考虑垂直切换和水平切换,并根据车辆的移动状态进行判断,来平衡 QoS 和切换成本。本文提出了一个马尔可夫决策过程(MDP)来描述这个混合切换问题,其成本函数平衡了切换消耗、延迟和可靠性。采用值迭代算法来求解最优切换策略。仿真结果表明,与其他基准方案相比,所提出的混合切换方案性能更佳。
A Hybrid Handover Scheme for Vehicular VLC/RF Communication Networks
Visible light communication (VLC) is a promising complementary technology to its radio frequency (RF) counterpart to satisfy the high quality-of-service (QoS) requirements of intelligent vehicular communications by reusing LED street lights. In this paper, a hybrid handover scheme for vehicular VLC/RF communication networks is proposed, to balance QoS and handover costs by considering the vertical handover and horizontal handover together, and judging from the mobile state of the vehicle. A Markov decision process (MDP) is formulated to describe this hybrid handover problem, with a cost function balancing the handover consumption, delay, and reliability. A value iteration algorithm was applied to solve the optimal handover policy. The simulation results demonstrated the performance of the proposed hybrid handover scheme in comparison to other benchmark schemes.
期刊介绍:
Sensors (ISSN 1424-8220) provides an advanced forum for the science and technology of sensors and biosensors. It publishes reviews (including comprehensive reviews on the complete sensors products), regular research papers and short notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.