| Title | Cellular V2X Communications in Unlicensed Spectrum: Harmonious Coexistence With VANET in 5G Systems |
| Authors | Wang, Pengfei Di, Boya Zhang, Hongliang Bian, Kaigui Song, Lingyang |
| Affiliation | Peking Univ, Sch Elect Engn & Comp Sci, Beijing 100871, Peoples R China. |
| Keywords | Cellular V2X VANET semi-persistent scheduling resource allocation matching theory NONORTHOGONAL MULTIPLE-ACCESS NETWORKS |
| Issue Date | 2018 |
| Publisher | IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS |
| Citation | IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS. 2018, 17(8), 5212-5224. |
| Abstract | With the increasing demand for vehicular data transmission, limited dedicated cellular spectrum becomes a bottleneck to satisfying the requirements of all cellular vehicle-to-everything (V2X) users. To address this issue, unlicensed spectrum is considered to serve as the complement to support cellular V2X users. In this paper, we study the coexistence problem of cellular V2X users and vehicular ad hoc network (VANET) users over the unlicensed spectrum. To facilitate the coexistence, we design an energy sensing-based spectrum sharing scheme, where cellular V2X users are able to access the unlicensed channels fairly while reducing the data transmission collisions between cellular V2X and VANET users. In order to maximize the number of active cellular V2X users, we formulate the scheduling and resource allocation problem as a two-sided many-to-many matching with peer effects. We then propose a dynamic vehicle-resource matching algorithm and present the analytical results on the convergence time and computational complexity. Simulation results show that the proposed algorithm outperforms existing approaches in terms of the performance of the cellular V2X system when the unlicensed spectrum is utilized. |
| URI | http://hdl.handle.net/20.500.11897/517989 |
| ISSN | 1536-1276 |
| DOI | 10.1109/TWC.2018.2839183 |
| Indexed | SCI(E) EI |
| Appears in Collections: | 信息科学技术学院 |
