Dynamic Power Control for NOMA Transmissions in Wireless Caching Networks

Yaru Fu, Wanli Wen, Zhongyuan Zhao, Tony Q.S. Quek, Shi Jin, Fu Chun Zheng

Research output: Contribution to journalArticlepeer-review

Abstract

Non-orthogonal multiple access (NOMA) technique is capable of improving the efficiency of delivering and pushing contents in wireless caching networks. However, due to the differences of the data volume and the channel condition, the static power control schemes cannot fully explore the potential of NOMA. To solve this problem, dynamic power control for NOMA transmissions in wireless caching networks is studied in this letter, which can be adjusted based on the status of content transmissions. In particular, we focus on minimizing the transmission delay with the considerations of each user's transmission deadline and the total power constraint. An iterative algorithm is first proposed to approach the optimal solution of dynamic power control. Then a deep neural network (DNN)-based method is designed to keep a balance between the performance and the computational complexity. Finally, Monte-Carlo simulations are provided for verifications.

Original languageEnglish
Article number8738823
Pages (from-to)1485-1488
Number of pages4
JournalIEEE Wireless Communications Letters
Volume8
Issue number5
DOIs
Publication statusPublished - 2019 Oct

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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