Sep 2026· IEEE International Symposium on Personal, Indoor and Mobile Radio Communications· pp. 1-6· 0 citations· 11 references
Abstract
High spectral efficiency and wide coverage enhancements for future wireless networks are offered by reconfigurable intelligent surfaces (RIS) and faster-than-Nyquist (FTN) signaling. However, severe challenges are faced in practical deployments from RIS hardware impairments and aggressive FTN-induced inter-symbol interference (ISI). A robust hardware-aware RISassisted FTN communication system is proposed in this paper. First, to mitigate hardware defects and reduce channel acquisition overhead, a reflection element selection (RES) strategy utilizing a maximum cascaded magnitude selection (MCMS) criterion is introduced. Second, to efficiently suppress severe ISI and colored noise, a parallel soft iterative interference cancellation (Soft-ISIC) detector is developed. Ergodic channel capacity and average bit error rate bounds are theoretically derived. Analytical derivations are validated through extensive simulations, demonstrating that near-optimal full-array performance with selective active elements is achieved by the MCMS-RES, while the performance bottleneck of traditional linear equalizers under severe hardware damage is successfully mitigated by the Soft-ISIC detector.
This work investigates an intelligent reflecting surfaces (IRS)-assisted multiple inputs and single output (MISO)sparse code multiple access (SCMA) system under the influence of hardware impairments (HIs) and nonlinear power amplifiers (NPAs) by considering phase-shift design. To address the IRS phase-shift design, we...
Sanjeev Sharma, Minerva Priyadarsini, Kuntal Deka et al.· IEEE International Symposium...· 0 citations
This paper investigates a hardware-impaired, ultrareliable low-latency communication (URLLC)-aware massive multiple-input multiple-output (MIMO) integrated sensing and communication (ISAC) system under the finite-blocklength regime. We propose a partial zero-forcing structured transmit beamforming (PZF-STB) scheme that...
Abhilash Ranjan, P. J. Shreya, Ekant Sharma· IEEE International Symposium...· 0 citations
The rapid proliferation of the Internet of Things (IoT) demands wireless technologies balancing energy efficiency, long-range coverage, and reliable transmission. As a leading low-power wide-area network (LPWAN) solution, LoRa modulation excels in robustness and low-power consumption but faces bottlenecks of limited sp...
Jia-Cai Liu, Guo-Fa Cai, Ji-Guang He et al.· IEEE Transactions on Communi...· 0 citations
In-band Full-Duplex (IBFD) Integrated Sensing and Communication (ISAC) framework surpasses the conventional Time Division Duplex (TDD) scheme by enhancing communication capacity, eliminating sensing coverage gaps, and enabling seamless communication-sensing coordination. However, IBFD operation introduces severe self-i...
Hong-Ru Zhang, Chang-Hao Du, Jie Yang et al.· IEEE Transactions on Communi...· 0 citations
Wideband terahertz (THz) communication systems assisted by active reconfigurable intelligent surfaces (RIS) are susceptible to frequency dependent beam squint, which degrades the array gain at band edge subcarriers and reduces the achievable rate. In active RIS architectures, mitigating this effect requires the inserti...
Faran Awais Butt, A. A. Nasir, A. Muqaibel· IEEE Open Journal of the Com...· 0 citations
Numerical results show that the proposed impairment-aware STAR-RIS-NOMA design achieves higher sum rates and lower bit error rates than the considered hardware-impairment-unaware benchmarks.
