TY - JOUR
T1 - Capacity maximization based on optimal mode selection in multi-mode and multi-pair D2D communications
AU - Chen, Chao Yu
AU - Sung, Chi An
AU - Chen, Hsiao Hwa
N1 - Funding Information:
Manuscript received November 4, 2018; revised March 4, 2019; accepted April 22, 2019. Date of publication April 29, 2019; date of current version July 16, 2019. This work was supported in part by the Ministry of Science and Technology, Taiwan, under Grants 106-2221-E-006-021-MY3, 106-2221-E-006-028-MY3, and 107-2221-E-006-065-MY2. The review of this paper was coordinated by Prof. J. Liu. (Corresponding author: Hsiao-Hwa Chen.) The authors are with the Department of Engineering Science, National Cheng Kung University, Tainan 701, Taiwan (e-mail: [email protected]; [email protected]; [email protected]). Digital Object Identifier 10.1109/TVT.2019.2913987
Publisher Copyright:
© 2019 IEEE.
PY - 2019/7
Y1 - 2019/7
N2 - Device-to-device (D2D) communication is a promising technique to enhance the spectrum efficiency of a cellular network. However, one of the major challenges in D2D communications is to select appropriate communication modes for all possible D2D pairs in a D2D network. In this paper, we study the mode selection problems in a multi-mode and multi-pair D2D network, where the eNB can assign one of the three D2D communication modes (including local route mode, direct D2D mode, and relay D2D mode) to each D2D pair. To achieve the maximal cell-wise capacity, an optimal mode selection algorithm is proposed in this paper with the aim to share cellular users' uplink channels. The optimal mode selection problem can be modeled by an integer programming problem. Particularly, in a fully loaded cell, we discover that the optimal mode selection problem can be solved using a linear programming algorithm with a significantly reduced complexity.
AB - Device-to-device (D2D) communication is a promising technique to enhance the spectrum efficiency of a cellular network. However, one of the major challenges in D2D communications is to select appropriate communication modes for all possible D2D pairs in a D2D network. In this paper, we study the mode selection problems in a multi-mode and multi-pair D2D network, where the eNB can assign one of the three D2D communication modes (including local route mode, direct D2D mode, and relay D2D mode) to each D2D pair. To achieve the maximal cell-wise capacity, an optimal mode selection algorithm is proposed in this paper with the aim to share cellular users' uplink channels. The optimal mode selection problem can be modeled by an integer programming problem. Particularly, in a fully loaded cell, we discover that the optimal mode selection problem can be solved using a linear programming algorithm with a significantly reduced complexity.
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U2 - 10.1109/TVT.2019.2913987
DO - 10.1109/TVT.2019.2913987
M3 - Article
AN - SCOPUS:85069755481
SN - 0018-9545
VL - 68
SP - 6524
EP - 6534
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 7
M1 - 8701678
ER -