Optimization of Discovery Period for Peer Device Discovery in Cellular-Assisted D2D Communication Systems

Minjoong RIM; Gyuhak YEO; Seungyeob CHAE; Chung G. KANG

doi:10.1587/transcom.E98.B.1373

Optimization of Discovery Period for Peer Device Discovery in Cellular-Assisted D2D Communication Systems

Minjoong RIM, Gyuhak YEO, Seungyeob CHAE, Chung G. KANG

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One of the most important processes in cellular-assisted device-to-device (D2D) communications is device discovery, which decides whether two devices are located close to each other. The discovery process is performed by devices periodically transmitting discovery signals so that neighbor devices can receive them to recognize their proximate physical presence. While a fixed set of discovery parameters are used regardless of devices in most of the existing works, discovery periods are not necessarily the same for all devices, as they can be set differently depending on their channel conditions and operational environments, e.g., the mobile speeds. In this paper, we present an optimization framework to determine the discovery periods for individual devices in cellular-assisted D2D communication systems. We consider two different types of optimization problems, taking the different user velocities into account: minimizing the average number of undiscovered device pairs, and minimizing the number of discovery signal transmissions while maintaining the average number of undiscovered device pairs for each device less than a pre-specified threshold. We present analytical and simulation results to demonstrate that short discovery periods can be beneficial to high-mobility devices, while longer discovery periods are allowed for devices with lower velocities.

Publication: IEICE TRANSACTIONS on Communications Vol.E98-B No.7 pp.1373-1380

Publication Date: 2015/07/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.E98.B.1373

Type of Manuscript: PAPER

Category: Terrestrial Wireless Communication/Broadcasting Technologies

Authors

Minjoong RIM
  Dongguk University-Seoul
Gyuhak YEO
  Dongguk University-Seoul
Seungyeob CHAE
  Dongguk University-Seoul
Chung G. KANG
  Korea University

Keyword

device-to-device, D2D, device discovery, discovery period, velocity, mobility

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Minjoong RIM, Gyuhak YEO, Seungyeob CHAE, Chung G. KANG, "Optimization of Discovery Period for Peer Device Discovery in Cellular-Assisted D2D Communication Systems" in IEICE TRANSACTIONS on Communications, vol. E98-B, no. 7, pp. 1373-1380, July 2015, doi: 10.1587/transcom.E98.B.1373.
Abstract: One of the most important processes in cellular-assisted device-to-device (D2D) communications is device discovery, which decides whether two devices are located close to each other. The discovery process is performed by devices periodically transmitting discovery signals so that neighbor devices can receive them to recognize their proximate physical presence. While a fixed set of discovery parameters are used regardless of devices in most of the existing works, discovery periods are not necessarily the same for all devices, as they can be set differently depending on their channel conditions and operational environments, e.g., the mobile speeds. In this paper, we present an optimization framework to determine the discovery periods for individual devices in cellular-assisted D2D communication systems. We consider two different types of optimization problems, taking the different user velocities into account: minimizing the average number of undiscovered device pairs, and minimizing the number of discovery signal transmissions while maintaining the average number of undiscovered device pairs for each device less than a pre-specified threshold. We present analytical and simulation results to demonstrate that short discovery periods can be beneficial to high-mobility devices, while longer discovery periods are allowed for devices with lower velocities.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E98.B.1373/_p

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@ARTICLE{e98-b_7_1373,
author={Minjoong RIM, Gyuhak YEO, Seungyeob CHAE, Chung G. KANG, },
journal={IEICE TRANSACTIONS on Communications},
title={Optimization of Discovery Period for Peer Device Discovery in Cellular-Assisted D2D Communication Systems},
year={2015},
volume={E98-B},
number={7},
pages={1373-1380},
abstract={One of the most important processes in cellular-assisted device-to-device (D2D) communications is device discovery, which decides whether two devices are located close to each other. The discovery process is performed by devices periodically transmitting discovery signals so that neighbor devices can receive them to recognize their proximate physical presence. While a fixed set of discovery parameters are used regardless of devices in most of the existing works, discovery periods are not necessarily the same for all devices, as they can be set differently depending on their channel conditions and operational environments, e.g., the mobile speeds. In this paper, we present an optimization framework to determine the discovery periods for individual devices in cellular-assisted D2D communication systems. We consider two different types of optimization problems, taking the different user velocities into account: minimizing the average number of undiscovered device pairs, and minimizing the number of discovery signal transmissions while maintaining the average number of undiscovered device pairs for each device less than a pre-specified threshold. We present analytical and simulation results to demonstrate that short discovery periods can be beneficial to high-mobility devices, while longer discovery periods are allowed for devices with lower velocities.},
keywords={},
doi={10.1587/transcom.E98.B.1373},
ISSN={1745-1345},
month={July},}

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TY - JOUR
TI - Optimization of Discovery Period for Peer Device Discovery in Cellular-Assisted D2D Communication Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 1373
EP - 1380
AU - Minjoong RIM
AU - Gyuhak YEO
AU - Seungyeob CHAE
AU - Chung G. KANG
PY - 2015
DO - 10.1587/transcom.E98.B.1373
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E98-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2015
AB - One of the most important processes in cellular-assisted device-to-device (D2D) communications is device discovery, which decides whether two devices are located close to each other. The discovery process is performed by devices periodically transmitting discovery signals so that neighbor devices can receive them to recognize their proximate physical presence. While a fixed set of discovery parameters are used regardless of devices in most of the existing works, discovery periods are not necessarily the same for all devices, as they can be set differently depending on their channel conditions and operational environments, e.g., the mobile speeds. In this paper, we present an optimization framework to determine the discovery periods for individual devices in cellular-assisted D2D communication systems. We consider two different types of optimization problems, taking the different user velocities into account: minimizing the average number of undiscovered device pairs, and minimizing the number of discovery signal transmissions while maintaining the average number of undiscovered device pairs for each device less than a pre-specified threshold. We present analytical and simulation results to demonstrate that short discovery periods can be beneficial to high-mobility devices, while longer discovery periods are allowed for devices with lower velocities.
ER -