TY - GEN
T1 - Dynamic Resource Allocation for Dual-Side STAR-RIS in Multi-Cell NOMA Networks
AU - Piao, Xuexiang
AU - Mughal, Danish Mehmood
AU - Kim, Sang Hyo
AU - Chung, Min Young
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - Reflecting Intelligent Surfaces (RIS) can enhance wireless communication by intelligently reconfiguring the signal propagation environment. However, conventional RIS is limited in coverage and adaptability, as it only reflects signals within a restricted region. To overcome this, Simultaneously Transmitting and Reflecting Reconfigurable Intelligent Surfaces (STAR-RIS) enable full-space coverage by supporting both transmission and reflection. Existing studies on STAR-RIS mainly consider single-cell scenarios with fixed element allocation, limiting their adaptability in multi-cell environments. This work proposes a dual-side STAR-RIS architecture that dynamically allocates elements between adjacent cells, enhancing intra-cell communication through reflection while mitigating inter-cell interference via transmission. By integrating Non-Orthogonal Multiple Access (NOMA) and irregular element allocation schemes, the proposed approach significantly improves the sum rate, making it a promising solution for future wireless networks.
AB - Reflecting Intelligent Surfaces (RIS) can enhance wireless communication by intelligently reconfiguring the signal propagation environment. However, conventional RIS is limited in coverage and adaptability, as it only reflects signals within a restricted region. To overcome this, Simultaneously Transmitting and Reflecting Reconfigurable Intelligent Surfaces (STAR-RIS) enable full-space coverage by supporting both transmission and reflection. Existing studies on STAR-RIS mainly consider single-cell scenarios with fixed element allocation, limiting their adaptability in multi-cell environments. This work proposes a dual-side STAR-RIS architecture that dynamically allocates elements between adjacent cells, enhancing intra-cell communication through reflection while mitigating inter-cell interference via transmission. By integrating Non-Orthogonal Multiple Access (NOMA) and irregular element allocation schemes, the proposed approach significantly improves the sum rate, making it a promising solution for future wireless networks.
KW - Dynamic element allocation
KW - Non-Orthogonal Multiple Access (NOMA)
KW - Reconfigurable Intelligent Surfaces (RIS)
KW - Spectral efficiency
KW - STAR-RIS
UR - https://www.scopus.com/pages/publications/105018735525
U2 - 10.1109/ICUFN65838.2025.11169770
DO - 10.1109/ICUFN65838.2025.11169770
M3 - Conference contribution
AN - SCOPUS:105018735525
T3 - International Conference on Ubiquitous and Future Networks, ICUFN
SP - 436
EP - 440
BT - ICUFN 2025 - 16th International Conference on Ubiquitous and Future Networks
PB - IEEE Computer Society
T2 - 16th International Conference on Ubiquitous and Future Networks, ICUFN 2025
Y2 - 8 July 2025 through 11 July 2025
ER -