We propose graph-theory-based mode selection and resource allocation algorithms for device-to-device (D2D) communication systems in which a full-duplex (FD) scheme can be applied. To apply FD in practice, the current half-duplex (HD) communication devices need to be upgraded to FD devices. Replacing all the devices at once, though, is undesirable; implementing FD incurs a high cost. It is prudent then to select the devices that ought to be changed first. This would ensure better performance at reducing frequency range or enhancing sum-rate. To resolve this issue, we suggest an algorithm that selects D2D pairs based on the centrality concept of graph theory. We also propose a resource allocation algorithm modified for FD-applied environments to reduce the range of frequency bands. Numerical analyses confirm that the proposed system achieves a reduction of the used frequency range as well as the theoretical maximum sum-rate performance.
Bibliographical noteFunding Information:
Manuscript received March 3, 2020; revised August 7, 2020; accepted September 4, 2020. Date of publication September 21, 2020; date of current version February 9, 2021. This work was supported by the Agency for Defense Development, South Korea. The associate editor coordinating the review of this article and approving it for publication was M. A. Assaad. (Corresponding author: Chan-Byoung Chae.) Hong-Bae Jeon, Bon-Hong Koo, and Chan-Byoung Chae are with the School of Integrated Technology, Yonsei University, Seoul 120-749, South Korea (e-mail: firstname.lastname@example.org; email@example.com; firstname.lastname@example.org).
© 2012 IEEE.
All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Electrical and Electronic Engineering