Abstract
Device-to-device (D2D) services are gaining popularity in public safety (PS) applications. The existing half-duplex (HD) D2D discovery has the constraint that the devices sending beacon cannot be discovered at the same time, resulting in large time delays. To counter this problem, in-band full duplex (IB-FD) communications can be used to discover the user quickly by enabling simultaneous transmission and reception during same time-frequency block. In this paper, we exploit the benefits of IB-FD system where PS users are given priority in resource allocation. Moreover, to efficiently utilize the spectrum, we propose a time-efficient device discovery resource allocation (TE-DDRA) scheme where a user can switch the transmission mode from HD to IB-FD when the demand exceeds the available resources in HD mode. The simulation results prove that in comparison with random mode, the PS priority mode saves around 37% discovery time.
| Original language | English |
|---|---|
| Title of host publication | Quality, Reliability, Security and Robustness in Heterogeneous Systems- 14th EAI International Conference, Qshine 2018, Proceedings |
| Editors | Trung Q. Duong, Nguyen-Son Vo, Van Ca Phan |
| Publisher | Springer Verlag |
| Pages | 102-108 |
| Number of pages | 7 |
| ISBN (Print) | 9783030144128 |
| DOIs | |
| State | Published - 2019 |
| Externally published | Yes |
Publication series
| Name | Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST |
|---|---|
| Volume | 272 |
| ISSN (Print) | 1867-8211 |
Bibliographical note
Publisher Copyright:© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2019.
Keywords
- 5G systems
- D2D discovery
- Full duplex device discovery
- Public safety
ASJC Scopus subject areas
- Computer Networks and Communications