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arXiv 1802.03329cs.ITmath.IT
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毫米波频段的设备到设备通信:一种新的分布式机制

Device-to-Device Communications in the Millimeter Wave Band: A Novel Distributed Mechanism

Niloofar Bahadori, Nima Namvar, Brian Kelley, Abdollah Homaifar

摘要:

尽管具有潜在的优势,但设备到设备(D2 D)通信的大规模实现尚未实现,这主要是由于严重的干扰和微波($μ$ W)频带中缺乏足够的带宽。最近,利用毫米波(mmW)频带用于D2 D通信作为这些挑战的潜在解决方案已经吸引了相当多的关注。然而,其对阻塞的严重敏感性以及其方向性使得mmW频带的利用成为具有挑战性的任务,因为其需要视线(LOS)链路检测和D2 D收发器之间的仔细波束对准。在本文中,我们提出了一种新的分布式机制,使D2 D设备发现畅通的LOS链路的毫米波波段通信。此外,由于这种LOS链路并不总是可用的,因此所提出的机制允许D2 D设备在必要时切换到$μ$ W频带。此外,所提出的机制检测LOS链路的方向来执行波束对准。我们已经使用随机几何工具来评估所提出的机制的信号干扰噪声比(SINR)的覆盖概率方面的性能。然后将所提出的算法的性能与单个频带的性能(即,$μ$ W/mmW)通信。仿真结果表明,该机制大大优于单频通信。

英文摘要:

In spite of its potential advantages, the large-scale implementation of the device-to-device (D2D) communications has yet to be realized, mainly due to severe interference and lack of enough bandwidth in the microwave ($μ$W) band. Recently, exploiting the millimeter wave (mmW) band for D2D communications has attracted considerable attention as a potential solution to these challenges. However, its severe sensitivity to blockage along with its directional nature make the utilization of the mmW band a challenging task as it requires line-of-sight (LOS) link detection and careful beam alignment between the D2D transceivers. In this paper, we propose a novel distributed mechanism which enables the D2D devices to discover unblocked LOS links for the mmW band communication. Moreover, as such LOS links are not always available, the proposed mechanism allows the D2D devices to switch to the $μ$W band if necessary. In addition, the proposed mechanism detects the direction of the LOS links to perform the beam alignment. We have used tools from stochastic geometry to evaluate the performance of the proposed mechanism in terms of the signal-to-interference-plus-noise ratio (SINR) coverage probability. The performance of the proposed algorithm is then compared to the one of the single band (i.e., $μ$W/mmW) communication. The simulation results show that the proposed mechanism considerably outperforms the single band communication.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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