2018/02/09 by Niloofar Bahadori, Nima Namvar, Bahadori, Niloofar +5
Engineering · #Advanced MIMO Systems Optimization #FOS: Computer and information sciences #Information Theory (cs.IT) #Microwave Engineering and Waveguides #Millimeter-Wave Propagation and Modeling
paper · pdf · doi:10.48550/arxiv.1802.03329
openalex publication_date 2018/02/09 · openalex created_date 2022/10/07 · openalex updated_date 2026/07/28
In spite of its potential advantages, the large-scale implementation of the\ndevice-to-device (D2D) communications has yet to be realized, mainly due to\nsevere interference and lack of enough bandwidth in the microwave (\μW)\nband. Recently, exploiting the millimeter wave (mmW) band for D2D\ncommunications has attracted considerable attention as a potential solution to\nthese challenges. However, its severe sensitivity to blockage along with its\ndirectional nature make the utilization of the mmW band a challenging task as\nit requires line-of-sight (LOS) link detection and careful beam alignment\nbetween the D2D transceivers. In this paper, we propose a novel distributed\nmechanism which enables the D2D devices to discover unblocked LOS links for the\nmmW band communication. Moreover, as such LOS links are not always available,\nthe proposed mechanism allows the D2D devices to switch to the \μW band if\nnecessary. In addition, the proposed mechanism detects the direction of the LOS\nlinks to perform the beam alignment. We have used tools from stochastic\ngeometry to evaluate the performance of the proposed mechanism in terms of the\nsignal-to-interference-plus-noise ratio (SINR) coverage probability. The\nperformance of the proposed algorithm is then compared to the one of the single\nband (i.e., \μW/mmW) communication. The simulation results show that the\nproposed mechanism considerably outperforms the single band communication.\n