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RSMA-Enabled Aerial RIS-Aided MU-MIMO System for Improved Spectral-Efficient URLLC
Mayur V. Katwe;Rasika Deshpande;Keshav Singh;Meng-Lin Ku;Bruno Clerckx
This study explores a new resource allocation framework for a multi-user multiple-input and multiple-output (MU-MIMO) downlink system utilizing aerial reconfigurable intelligent surfaces (ARIS) in a rate-splitting multiple access (RSMA) scheme under ultra-reliable low-latency communication (URLLC). The objective is to maximize the overall spectral efficiency of users located in severely blocked de...Show More
Robust Transmission Design for RIS-Aided Full-Duplex-RSMA V2X Communications via Multi-Agent DRL
Sonia Pala;Mayur Katwe;Keshav Singh;Theodoros A. Tsiftsis;Chih-Peng Li
The proliferation of mobile devices and acceleration of spectral efficiency have become a pivotal requirement for the unprecedented connectivity, and performance of vehicle-to-everything (V2X) networks. This paper investigates an unconventional framework of reconfigurable intelligent surface (RIS)-integrated full-duplex (FD) rate-splitting multiple access (RSMA) communication systems, which aims t...Show More
An Overview of Intelligent Meta-Surfaces for 6G and Beyond: Opportunities, Trends, and Challenges
Mayur V. Katwe;Aryan Kaushik;Lina Mohjazi;Mohammad Abualhayja'a;Davide Dardari;Keshav Singh;Muhammad Ali Imran;M. Majid Butt;Octavia A. Dobre
With the impending arrival of the sixth generation (6G) of wireless communication technology, the telecommunications landscape is poised for another revolutionary transformation. At the fore-front of this evolution are intelligent meta-surfaces (IS), emerging as a disruptive physical layer technology with the potential to redefine the capabilities and performance metrics of future wireless network...Show More
Robust Beamforming Design for RSMA-Integrated Full-Duplex Communications: Energy and Spectral Efficiency Trade-off
Raviteja Allu;Mayur Katwe;Keshav Singh;Simon L. Cotton;Chih-Peng Li;Trung Q. Duong
IEEE Transactions on Green Communications and Networking
Year: 2024 | Early Access Article |
Cited by: Papers (1)
In this paper, we investigate an unconventional full-duplex (FD) integrated rate-splitting multiple access (RSMA) scheme for improved spectral efficiency (SE) and energy efficiency (EE) performance when compared to the conventional power-domain schemes. In particular, we focus on improving the energy efficiency (EE) and spectral efficiency (SE) trade-off for the multiple users subject to robust be...Show More
Energy-Efficient STAR-RIS-Aided MU-MIMO for Next-Generation URLLC Systems
Rasika Deshpande;Mayur Katwe;Keshav Singh;Meng-Lin Ku;Derrick Wing Kwan Ng
As a revolutionary paradigm for green ultra-reliable low-latency communication (URLLC), reconfigurable intelligent surfaces (RISs) have been considered as a prominent architecture for enabling next-generation communication systems. Recently, a novel RIS framework, called simultaneous transmitting and reflecting (STAR-RIS), has been proposed to facilitate both transmission and reflection through th...Show More
Robust Energy Efficient Beamforming Design for ISAC Full-Duplex Communication Systems
Raviteja Allu;Mayur Katwe;Keshav Singh;Trung Q. Duong;Chih-Peng Li
This letter examines an integrated sensing and communication (ISAC) scheme for multi-user systems under full-duplex (FD) architecture. We examine an FD-ISAC system where the base station is responsible for target detection and shares the same resources for simultaneous downlink (DL) and uplink (UL) communication. For a green FD-ISAC architecture, our primary focus is addressing the robust energy e...Show More
Enhanced User Fairness and Performance for eMBB-URLLC Uplink Traffic With Rate- Splitting Based Super-Positioning
Mayur Katwe;Keshav Singh;Chih-Peng Li;Shankar Prakriya;Bruno Clerckx;George K. Karagiannidis
This paper investigates an unconventional superposition scheme, i.e., rate-splitting multiple access (RSMA) to maximize the overall user fairness and high system performance gain for ultra-reliable low-latency communication (URLLC), enhanced mobile-broadband (eMBB) traffic coexistence in uplink scenarios. In particular, we focus on maximizing the worst-case performance of uplink eMBB and URLLC use...Show More
Secure RIS-Assisted Hybrid Beamforming Design With Low-Resolution Phase Shifters
Sonia Pala;Omid Taghizadeh;Mayur Katwe;Keshav Singh;Chih-Peng Li;Anke Schmeink
The low-resolution reality of the hardware elements associated with massive mmWave antenna or reflector arrays is associated with the performance degradation of the wireless link when it is not properly controlled. In particular, the unintended angular radiations of the transmission or reflection arrays (e.g., transmission in non-intended directions) would invalidate the usual assumptions of infor...Show More
Toward Green Communication: Power-Efficient Beamforming for STAR-RIS-Aided SWIPT
Jetti Yaswanth;Mayur Katwe;Keshav Singh;Omid Taghizadeh;Cunhua Pan;Anke Schmeink
As a revolutionary paradigm for green communication architecture for the next-generation communication system, reconfigurable intelligent surfaces (RISs) have been considered a holistic solution for simultaneous wireless information and power transfer (SWIPT). Recently, a novel concept called simultaneous transmitting and reflecting (STAR-RIS), has been recently introduced which facilitates both t...Show More
Spectrally-Efficient Beamforming Design for STAR-RIS-Aided URLLC NOMA Systems
Mayur Vitthalrao Katwe;Rasika Deshpande;Keshav Singh;Cunhua Pan;Pradnya H. Ghare;Trung Q. Duong
Next-generation wireless applications are expected to enable extended ultra-reliable low-latency communication (URLLC) to support high data rates along with ultra-reliability and low-latency features beyond the capabilities of existing core services. There is a need to transition from conventional architectures to more efficient and robust multiple-access schemes to meet these consolidated require...Show More
Reconfigurable Intelligent Surfaces-Assisted Overlay Energy Harvesting-CRN Under Resilient Primary User Outages
Anal Paul;Mayur Katwe;Keshav Singh;Chih-Peng Li;Trung Q. Duong
IEEE Communications Letters
Cited by: Papers (5)
This letter investigates a reconfigurable intelligent surface (RIS)-assisted overlay cognitive radio network (CRN) that incorporates rate splitting multiple access (RSMA) and energy harvesting (EH) schemes to provide resilience during transmission power outages. In particular, we focus on maximizing the CRN’s throughput using the joint allocation of cooperation slot, power-splitting factor, and be...Show More
RIS-Empowered MEC for URLLC Systems With Digital-Twin-Driven Architecture
Sravani Kurma;Mayur Katwe;Keshav Singh;Cunhua Pan;Shahid Mumtaz;Chih-Peng Li
This paper investigates a digital twin (DT) and reconfigurable intelligent surface (RIS)-aided mobile edge computing (MEC) system under given constraints on ultra-reliable low latency communication (URLLC). In particular, we focus on the problem of total end-to-end (E2E) latency minimization for the considered system under the joint optimization of beamforming design at the RIS, power, bandwidth a...Show More
Spectral-Energy Efficient Resource Allocation in RIS-Aided FD-MIMO Systems
Sravani Kurma;Mayur Katwe;Keshav Singh;Trung Q. Duong;Chih-Peng Li
Re-configurable intelligent surface (RIS)-aided communication has been envisaged as a frontier scheme to enable ultra-high spectral efficiency (SE) and energy efficiency (EE) for next-generation communication. This paper investigates an unconventional framework of RIS-aided full-duplex (FD) multi-user multiple-input multiple-output (MIMO) communication and analyzes its resource efficiency (RE), a ...Show More
Spectral-Efficient Downlink Systems Under Imperfect SIC and CSI: MC-NOMA or Partial NOMA?
This letter investigates a scalable hybrid non-orthogonal multiple access (NOMA) scheme termed partial NOMA (pNOMA) based on the partial sharing of the frequency resources among the users. In particular, we aim to design a spectrally-efficient multi-user downlink scheme under imperfect successive interference cancellation (SIC) and channel state information (CSI) via a joint control on the power a...Show More
Robust Beamforming Design for Active-RIS Aided MIMO SWIPT Communication System: A Power Minimization Approach
Jetti Yaswanth;Mayur Katwe;Keshav Singh;Shankar Prakriya;Cunhua Pan
As a revolutionary paradigm for green communication architecture for next-generation, reconfigurable intelligent surfaces (RISs) has been considered for simultaneous wireless information and power transfer (SWIPT). Nevertheless, the performance gain achieved by the conventional passive RISs is limited due to the multiplicative fading effect. In this paper, we investigate an unconventional framewor...Show More
Spectral-Efficient RIS-Aided RSMA URLLC: Toward Mobile Broadband Reliable Low Latency Communication (mBRLLC) System
Sonia Pala;Mayur Katwe;Keshav Singh;Bruno Clerckx;Chih-Peng Li
Next-generation wireless applications are expected to enable extended ultra-reliable low latency communication (xURLLC) to support high data rates along with ultra-high reliability and low end-to-end latency features beyond the capabilities of existing core services. These consolidated data rates and URLLC requirements in resource-constrained systems necessitate the shift from conventional archite...Show More
RSMA-Integrated Full-Duplex Communications for Better Energy and Spectral-Efficiency Trade-off
Raviteja Allu;Mayur Katwe;Keshav Singh;Trung Q. Duong;Chih-Peng Li
2023 IEEE Globecom Workshops (GC Wkshps)
Year: 2023 | Conference Paper |
This paper explores an unconventional physical-layer architecture, i.e., full-duplex (FD) integrated rate-splitting multiple access (RSMA) to attain a better trade-off between energy efficiency (EE) and spectral efficiency (SE) under multi-user scenarios. The considered FD-RSMA system divides and encodes the original messages of each downlink (DL) and uplink (UL) into multiple sub-messages, and la...Show More
Robust Beamforming Design for STAR-RIS-aided NOMA System under Short-packet Communication
GLOBECOM 2023 - 2023 IEEE Global Communications Conference
Year: 2023 | Conference Paper |
Next-generation wireless applications are expected to enable extended ultra-reliable low latency communication (URLLC) to support high data rates along with ultra-high reliability and low end-to-end latency features beyond the capabilities of existing core services. This paper investigates simultaneous transmission and reflection re-configurable intelligent surface (STARRIS) aided non-orthogonal m...Show More
Power-Efficient STAR-RIS Aided MIMO-SWIPT Towards 6G Green Communications Under Channel Estimation Error
Jetti Yaswanth;Mayur Katwe;Keshav Singh;Omid Taghizadeh;Cunhua Pan;Anke Schmeink
GLOBECOM 2023 - 2023 IEEE Global Communications Conference
Year: 2023 | Conference Paper |
In this paper, we explore a novel approach of using a simultaneous transmission and reflection reconfigurable intelligent surface (STAR-RIS) to aid a multi-user (MU) multi-input multi-output (MIMO) system for simultaneous wireless information and power transfer (SWIPT) in the presence of statistical channel estimation errors (CEE). Our focus is on minimizing the power required for the SWIPT system...Show More
Robust Design of RIS-aided Full-Duplex RSMA System for V2X communication: A DRL Approach
Sonia Pala;Mayur Katwe;Keshav Singh;Theodoros A. Tsiftsis;Chih-Peng Li
GLOBECOM 2023 - 2023 IEEE Global Communications Conference
Year: 2023 | Conference Paper |
Cited by: Papers (4)
The proliferation of multiple devices and acceleration of spectral efficiency has become a pivotal requirement for the unprecedented connectivity and performance of vehicle-to-everything (V2X) networks. This paper investigates an unconventional framework of reconfigurable intelligent surface (RIS)-integrated full-duplex (FD) rate-splitting multiple access (RSMA) communication systems, which aims t...Show More
Throughput Maximization for RSMA-Empowered CRN under Short-Packet Communications: A DRL-Based Approach
Anal Paul;Mayur Katwe;Keshav Singh;Chih-Peng Li;Derrick Wing Kwan Ng
GLOBECOM 2023 - 2023 IEEE Global Communications Conference
Year: 2023 | Conference Paper |
This paper investigates the problem of spectral efficiency maximization in an underlay cognitive radio network (CRN) utilizing rate-splitting multiple access (RSMA) transmission for MISO downlink under short packet communications and imperfect channel estimation information. In particular, we focus on an effective transmit beamforming design at the cognitive base station while satisfying the requi...Show More
Towards Improved Spectral Efficiency Using RSMA-Integrated Full-Duplex Communications
Raviteja Allu;Mayur Katwe;Keshav Singh;Trung Q. Duong;Chih-Peng Li
2023 IEEE 34th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
Year: 2023 | Conference Paper |
Cited by: Papers (3)
This paper investigates an unconventional framework of rate-splitting multiple access (RSMA)-integrated full-duplex (FD) system to attain spectral-efficient multi-user communication. The considered FD-RSMA system divides and encodes the original messages of each downlink (DL) and uplink (UL) into two different sub-messages, and later transmits them at the same resource block, resulting in strong i...Show More
Joint Beamforming Design for STAR-RIS-Aided MU-MIMO System with SWIPT
Jetti Yaswanth;Mayur Katwe;Keshav Singh;Omid Taghizadeh;Anke Schmeink;Cunhua Pan
2023 IEEE International Conference on Communications Workshops (ICC Workshops)
Year: 2023 | Conference Paper |
Cited by: Papers (2)
This paper investigates the resource allocation problem in a simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) aided simultaneous wireless information and power transfer (SWIPT) system. Specifically, the considered system is motivated by the smart interference management of STAR-RIS with extended coverage capability and energy-efficient communication for the in...Show More
Energy-Efficient STAR-RIS-aided MU-MIMO System for Next-Generation Green URLLC
Rasika Deshpande;Mayur Katwe;Keshav Singh;Cunhua Pan;Mark F. Flanagan
2023 IEEE International Conference on Communications Workshops (ICC Workshops)
Year: 2023 | Conference Paper |
Cited by: Papers (2)
This paper investigates a novel simultaneous transmission and reflection reconfigurable intelligent surface (STAR-RIS) aided downlink (DL) ultra-reliable low-latency communications (URLLC) to deliver a green URLLC service for next-generation wireless networks. In particular, we focus on the problem of energy-efficient resource allocation design for a phase-shift coupled STAR-RIS-aided multi-user m...Show More
Power Efficient Robust Beamforming Design for Active RIS-Aided MU-MIMO SWIPT Systems
ICC 2023 - IEEE International Conference on Communications
Year: 2023 | Conference Paper |
Cited by: Papers (1)
This paper investigates an unconventional framework of active reconfigurable intelligent surface (ARIS) aided multi-user (MU) multi-input multi-output (MIMO) system for simultaneous wireless information and power transfer (SWIPT) network under statistical channel estimation error (CEE). Particularly, we focus on the problem of power minimization via joint beamforming design at BS and ARIS for cons...Show More
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