RIS-Integrated Near-Space Information Network: A Promising Network Paradigm for URLLC Services

Puguang An, Peng Yang, Xianbin Cao, Chaoqun You, Tony Q.S. Quek

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The integration of a near-space information network (NSIN) with the reconfigurable intelligent surface (RIS) is envisioned to significantly enhance the communication performance of future wireless communication systems by proactively altering wireless channels. This paper investigates the problem of deploying a RIS-integrated NSIN to provide energy-efficient, ultra-reliable and low-latency communications (URLLC) services for remote Internet of Things (IoT) devices. We mathematically formulate this problem as a resource optimization problem, aiming to maximize the effective throughput and minimize the system power consumption, subject to URLLC and physical resource constraints. We propose a joint resource allocation algorithm to solve this problem. In this algorithm, we discuss the optimization of phase shifts of RIS reflecting elements, derive an analysis-friendly expression of decoding error probability, and decompose the problem into two-layered optimization problems by analyzing the monotonicity, which makes the formulated problem analytically tractable. Simulation results show that the proposed algorithm is 34.14% more energy-efficient than diverse benchmark algorithms.

Original languageEnglish
Title of host publication2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350345407
DOIs
Publication statusPublished - 2023
Event2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023 - Dalian, China
Duration: 2023 Aug 102023 Aug 12

Publication series

Name2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023

Conference

Conference2023 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2023
Country/TerritoryChina
CityDalian
Period23-08-1023-08-12

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Signal Processing

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