Research Article
Spectrum-efficient D2D-based puncturing algorithm for eMBB and URLLC coexisting networks
@INPROCEEDINGS{10.4108/eai.27-8-2020.2294705, author={Yuhong Zhu and Kun Jiang and Linlin Zhao and Xuefen Chi and Shuang Wang}, title={Spectrum-efficient D2D-based puncturing algorithm for eMBB and URLLC coexisting networks}, proceedings={Proceedings of the 13th EAI International Conference on Mobile Multimedia Communications, Mobimedia 2020, 27-28 August 2020, Cyberspace}, publisher={EAI}, proceedings_a={MOBIMEDIA}, year={2020}, month={11}, keywords={embb (enhanced mobile broadband); urllc (ultra-reliable low-latency communication); d2d (device-to-device) based puncturing algorithm; effective capacity}, doi={10.4108/eai.27-8-2020.2294705} }- Yuhong Zhu
Kun Jiang
Linlin Zhao
Xuefen Chi
Shuang Wang
Year: 2020
Spectrum-efficient D2D-based puncturing algorithm for eMBB and URLLC coexisting networks
MOBIMEDIA
EAI
DOI: 10.4108/eai.27-8-2020.2294705
Abstract
In this paper, we propose a spectrum-efficient device-to-device (D2D)-based puncturing algorithm to multiplex enhanced mobile broadband (eMBB) and ultra-reliable low-latency communication (URLLC) traffic. The users with URLLC traffic communicate directly in D2D mode by reusing the resource blocks (RBs) allocated to cellular user with eMBB traffic. First, we derive the achievable transmission rate of cellular link that suffers from time-varying interference caused by different D2D links in two-timescale scheduling slot structure. Additionally, we calculate the achievable transmission rate of D2D link considering the short-packet nature of URLLC traffic. Then, the delay and reliability quality of service (QoS) of URLLCs are studied based on the effective capacity theory. Finally, the puncturing algorithm is formulated as a throughput maximization problem subject to the QoS constraints of eMBB and URLLC traffic. The transmitting power of eMBB users and URLLC users, as well as the resource reusing pattern are jointly optimized.
