RT Conference Proceedings
T1 V2PSense: Enabling Cellular-based V2P Collision Warning Service Through Mobile Sensing
A1 Li, Chi-Yu
A1 Salinas, Giovanni
A1 Huang, Po-Hao
A1 Tu, Guan-Hua
A1 Hsu, Guo-Huang
A1 Hsieh, Tien-Yuan
AB The C-V2X (Cellular Vehicle-to-Everything) technologyis developing in full swing. One of its mainstream servicescan be the Vehicle-to-Pedestrian (V2P) service. It can protectpedestrians who are mostly vulnerable on the road. In thiswork, we seek to enable a V2P service that can identify whichpedestrians may be nearby a dangerous driving event and thennotify them of warning messages. To enable this V2P service,there are two major challenges. First, a low-latency V2P messagetransport is required for this infrastructure-based service.Second, the pedestrian’s smartphone requires an energy-efficientoutdoor positioning method instead of power-hungry GPS dueto its limited battery life. We thus propose a novel solution,V2PSense, which trades off positioning precision for energysavings while achieving low-latency message transport with LTEhigh-priority bearers. It does a coarse-grained positioning byleveraging intermittent GPS information and mobile sensing data,which includes step count from the pedometer and cellular signalstrength changes. Though the V2PSense’s positioning is not asprecise as the GPS, it can still ensure that all the pedestriansnearby dangerous spots can be notified. Our results show thatit can achieve the average precision ratio 92.6% for estimatingwhere the pedestrian is while saving 20.8% energy, comparedwith the GPS always-on case.
PB IEEE
SN 978-1-5386-3180-5
SN (PoD) 978-1-5386-3181-2
SN 1938-1883
YR 2018
FD 2018-07-31
LK https://hdl.handle.net/10016/27475
UL https://hdl.handle.net/10016/27475
LA eng
NO This work was partially supported by the Ministry of Science and Tech-nology, Taiwan, under grant numbers 106-2622-8-009-017 and 106-2218-E-009-018, and by the H2020 collaborative Europe/Taiwan research project 5G-CORAL (grant num. 761586)
DS e-Archivo
RD 1 sept. 2024