Skip to main content
Kent Academic Repository

On Consideration of Content Preference and Sharing Willingness in D2D Assisted Offloading

Pan, Yijun, Pan, Cunhua, Zhu, Huiling, Ahmed, Qasim Zeeshan, Chen, Ming, Wang, Jiangzhou (2017) On Consideration of Content Preference and Sharing Willingness in D2D Assisted Offloading. IEEE Journal on Selected Areas in Communications, 35 (4). pp. 978-993. ISSN 0733-8716. (doi:10.1109/JSAC.2017.2680938) (KAR id:60128)


Device-to-device (D2D) assisted offloading heavily depends on the participation of human users. The content preference and sharing willingness of human users are two crucial factors in the D2D assisted offloading. In this paper, with consideration of these two factors, the optimal content pushing strategy is investigated by formulating an optimization problem to maximize the offloading gain measured by the offloaded traffic. Users are placed into groups according to their content preferences, and share content with intergroup and intragroup users at different sharing probabilities. Although the optimization problem is nonconvex, the closed-form optimal solution for a special case is obtained, when the sharing probabilities for intergroup and intragroup users are the same. Furthermore, an alternative group optimization (AGO) algorithm is proposed to solve the general case of the optimization problem. Finally, simulation results are provided to demonstrate the offloading performance achieved by the optimal pushing strategy for the special case and AGO algorithm. An interesting conclusion drawn is that the group with the largest number of interested users is not necessarily given the highest pushing probability. It is more important to give high pushing probability to users with high sharing willingness.

Item Type: Article
DOI/Identification number: 10.1109/JSAC.2017.2680938
Uncontrolled keywords: Content Offloading, Device-to-Device Communications, Sharing Willingness, Content Preference
Subjects: T Technology
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Tina Thompson
Date Deposited: 30 Jan 2017 08:54 UTC
Last Modified: 04 May 2024 03:10 UTC
Resource URI: (The current URI for this page, for reference purposes)

University of Kent Author Information

Pan, Cunhua.

Creator's ORCID:
CReDIT Contributor Roles:

Zhu, Huiling.

Creator's ORCID:
CReDIT Contributor Roles:

Ahmed, Qasim Zeeshan.

Creator's ORCID:
CReDIT Contributor Roles:

Wang, Jiangzhou.

Creator's ORCID:
CReDIT Contributor Roles:
  • Depositors only (login required):

Total unique views for this document in KAR since July 2020. For more details click on the image.