TY - JOUR
T1 - Energy-Efficient Device Discovery in D2D Cellular Networks for Public Safety Scenario
AU - Kaleem , Zeeshan
AU - Qadri, Nadia N.
AU - Duong, Trung Q.
AU - Karagiannidis, George K.
PY - 2019/3/6
Y1 - 2019/3/6
N2 - Energy-efficient device discovery is vital in public-safety systems. We investigate the problem of maximizing the number of discovered users under the major constraint of overlay interference, which occurs in device-to-device (D2D) communications, from users simultaneously accessing the resources. To solve this problem, we propose a D2D discovery maximization (D2D-DM) iterative algorithm, which provides the capability to switch the discovery mode from half-duplex to in-band full-duplex, when signal-to-interference-noise ratio falls below a predefined threshold. Moreover, the open-loop power control scheme is adopted for power-limited users. Simulation results demonstrate that the proposed D2D-DM scheme significantly enhances the number of discovered users as compared to conventional static resource allocation and the random backoff schemes.
AB - Energy-efficient device discovery is vital in public-safety systems. We investigate the problem of maximizing the number of discovered users under the major constraint of overlay interference, which occurs in device-to-device (D2D) communications, from users simultaneously accessing the resources. To solve this problem, we propose a D2D discovery maximization (D2D-DM) iterative algorithm, which provides the capability to switch the discovery mode from half-duplex to in-band full-duplex, when signal-to-interference-noise ratio falls below a predefined threshold. Moreover, the open-loop power control scheme is adopted for power-limited users. Simulation results demonstrate that the proposed D2D-DM scheme significantly enhances the number of discovered users as compared to conventional static resource allocation and the random backoff schemes.
U2 - 10.1109/JSYST.2019.2899922
DO - 10.1109/JSYST.2019.2899922
M3 - Article
SN - 1932-8184
JO - IEEE Systems Journal
JF - IEEE Systems Journal
ER -