CORTEXA
← Browse
arxiveess.SP2026-06-27

PASS-Assisted RSMA under Imperfect SIC: Joint Antenna Activation and Resource Allocation

Saeid Pakravan, Imene Trigui, Wessam Ajib, Wei-Ping Zhu

The performance of rate-splitting multiple access (RSMA) can be severely affected by imperfect successive interference cancellation (SIC) in practical wireless systems. This paper investigates a downlink pinching antenna system (PASS)-assisted RSMA network under imperfect SIC, where residual common-stream interference is explicitly incorporated into private-stream decoding. To improve user fairness, a max-min rate optimization problem is formulated through the joint design of antenna activation, common-rate allocation, and power allocation. The resulting mixed-integer non-convex problem is addressed using a two-stage framework that combines greedy channel-aware antenna activation with successive convex approximation (SCA)-based resource allocation. Numerical results demonstrate the effectiveness of the proposed framework in improving fairness under imperfect SIC.

View free PDFSource page

Related papers

arxiveess.SP2026-07-01

Alternating Optimization for Joint Resource Allocation in Full-Duplex Multi-Sector Fluid Antenna-Enabled Near-Field Systems

Jingxuan Zhou, Yinchao Yang, Zhaohui Yang, A. Hamid Aghvami, Mohammad Shikh-Bahaei

This paper proposes a full duplex fluid antenna near field system (FD-FANS) with a multi-sector antenna array that jointly exploits resource allocation, antenna mobility, and group-based transmitting (TX) and receiving (RX) partitioning. A spherical wave uplink downlink channel i…

View free PDFSource page
arxiveess.SP2026-07-02

Robust Transmission Design for RIS-Assisted RSMA-SWIPT Systems With Movable Antennas Under Hardware Distortions

Muhammad Asif, Asim Ihsan, Irfan Muhammad, Mohd Hamza Naim Shaikh, Syed Tariq Shah, Zhu Shoujin, et al.

This paper investigates a robust transmission design for a multi-user rate-splitting multiple access (RSMA)-based simultaneous wireless information and power transfer (SWIPT) system empowered by movable antennas (MAs) and a reconfigurable intelligent surface (RIS) under channel s…

View free PDFSource page
arxiveess.SP2026-06-26

Optimized Beamforming and Bandwidth Allocation in Multi-Antenna UAV-Assisted Vehicular Networks

S. F. Bozorgi, S. M. Razavizadeh, J. He

Ensuring reliable communication for mission-critical vehicles in dynamic environments with limited infrastructure is a significant challenge due to interference and spectrum scarcity. This paper investigates a UAV-assisted vehicular communication framework that leverages multi-an…

View free PDFSource page
arxiveess.SP2026-07-17

Energy-Efficient Resource Allocation for Six-Dimensional Movable Antenna Systems

Ziyun Zhang, Ruotong Zhao, Shaokang Hu, Derrick Wing Kwan Ng

This paper investigates the energy-efficiency (EE) maximization problem for a multiuser wireless network equipped with six-dimensional movable antennas (6DMAs), where the three-dimensional (3D) positions and orientations of the antennas are jointly optimized to fully exploit the…

View free PDFSource page
arxiveess.SP2026-07-09

Beyond Single-Band: Analysis and Resource Allocation for Multi-band ISAC Systems

Haotian Liu, Zhiqing Wei, Xingwang Li, Yunxin Geng, Qixun Zhang, Zhiyong Feng

Integrated sensing and communication (ISAC) has emerged as a pivotal technology for sixth-generation wireless networks to empower high-precision sensing. The demand for superior sensing resolution and the reality of spectrum fragmentation have driven the research of multi-band IS…

View free PDFSource page