Energy-Efficient D2D Communication under Downlink HetNets

• Published in: 2019 IEEE Wireless Communications and Networking Conference (WCNC) pp. 1 - 6
• Main Authors: Algedir, Amal, Refai, Hazem H.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-04-2019
• Subjects: Base stations; Device-to-device communication; Interference; Optimization; Quality of service; Resource management; Throughput
• ISSN: 1558-2612
• DOI: 10.1109/WCNC.2019.8885967

Device-to-Device (D2D) communication is envisioned as an energy-efficient technology in the (5G) cellular standard. This paper addresses the channel and power allocation for heterogeneous cellular network-supported D2D during downlink transmission. We propose an energy-efficient scheme in terms of a joint resource block (RB) and power allocation. The energy efficiency of D2D (EE-D2D) is maximized without jeopardizing the quality of service (QoS) requirements of the other tier users. The optimization scheme decomposes into two subproblems. First, the Sequential Max Search (SMS) resource block allocation algorithm is applied to D2D users. Second, a genetic optimization approach (GA) is used to optimize the power of the D2D transmitter and base stations. Through simulation, we evaluate the proposed scheme (SMS-GA) under different QoS requirements. The SMS-GA scheme achieved a higher energy efficiency of D2D as compared to the max power scheme (SMS-Max).