Reconfigurable intelligent surface empowered underlaying device-to-device communication

Gang Yang, Yating Liao, Ying Chang Liang, Olav Tirkkonen

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference article in proceedingsScientificvertaisarvioitu

5 Sitaatiot (Scopus)
126 Lataukset (Pure)

Abstrakti

Reconfigurable intelligent surfaces (RIS) are a new and revolutionary technology to achieve spectrum-, energy- and cost-efficient wireless networks. This paper studies the resource allocation for RIS-empowered device-to-device (D2D) communication underlaying a cellular network, in which an RIS is employed to enhance desired signals and suppress interference between paired D2D and cellular links. We maximize the sum rate of D2D users and cellular users by jointly optimizing the resource reuse indicators, the transmit power and the RIS’s passive beamforming. To solve the formulated non-convex problem, we first propose an efficient user-pairing scheme based on relative channel strength to determine the resource reuse indicators. Then, the transmit power and the RIS’s passive beamforming are jointly optimized by an iterative algorithm, based on the techniques of alternating optimization, successive convex approximation, Lagrangian dual transform and quadratic transform. Numerical results show that the proposed design outperforms the traditional D2D network without RIS.

AlkuperäiskieliEnglanti
Otsikko2021 IEEE Wireless Communications and Networking Conference, WCNC 2021
KustantajaIEEE
Sivumäärä6
ISBN (elektroninen)978-1-7281-9505-6
DOI - pysyväislinkit
TilaJulkaistu - 2021
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaIEEE Wireless Communications and Networking Conference - Nanjing, Kiina
Kesto: 29 maalisk. 20211 huhtik. 2021

Julkaisusarja

NimiIEEE Wireless Communications and Networking Conference
ISSN (painettu)1525-3511

Conference

ConferenceIEEE Wireless Communications and Networking Conference
LyhennettäWCNC
Maa/AlueKiina
KaupunkiNanjing
Ajanjakso29/03/202101/04/2021

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