Robust Sum-Rate Maximization in Transmissive RMS Transceiver-Enabled SWIPT Networks

Li, Zhendong; Zhang, Ziheng; Wu, Qingqing; Cao, Huanqing; Li, Jun

doi:10.1109/jiot.2022.3228868

Cited by 9 publications

(10 citation statements)

References 47 publications

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“…In this paper, rate split signaling is considered where the transmission information is categorized into common and private streams. Both common and private streams are used for communication, in addition to utilizing common stream for sensing and designing it independently 3 . The signal can be expressed in the following form where ) denotes the linear precoding matrix, and…”

Section: Signal Modelmentioning

confidence: 99%

“…By continuously monitoring and analyzing factors such as network congestion, signal strength, and user demands, the system can dynamically allocate resources to optimize performance and ensure efficient utilization of available wireless resource. Previous works provide some algorithms for allocating resources [3]- [5], which consider communication sum-rate as the optimization metrics for the system, but in future communications network, the requirement of terminals will not be satisfied with communication, but with interaction with the wireless environment. Thus ISAC offers a new way of thinking.…”

Section: Introductionmentioning

confidence: 99%

“…There are numerous methods for obtaining channel state information, and in this paper we take the approach of channel estimation. In addition, sensing can also assist in obtaining channel state information, but in this paper more attention is paid to the tradeoff between sensing and communication 3. In order to provide additional design freedom to the system while satisfying the communication requirements, we utilize the common stream for sensing, but in practice the private stream is also reflected back to the BS, so we constrain the reflected private stream power in equation(11).…”

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confidence: 99%

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Transmissive Reconfigurable Intelligent Surface Transmitter Empowered Cognitive RSMA Networks

Liu

Yuan

et al. 2023

IEEE Commun. Lett.

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In this paper, a novel transmissive reconfigurable intelligent surface (TRIS) transceiver empowered integrated sensing and communications (ISAC) system is proposed for future multi-demand terminals. To address interference management, we implement rate-splitting multiple access (RSMA), where the common stream is independently designed for the sensing service. We introduce the sensing quality of service (QoS) criteria based on this structure and construct an optimization problem with the sensing QoS criteria as the objective function to optimize the sensing stream precoding matrix and the communication stream precoding matrix. Due to the coupling of optimization variables, the formulated problem is a non-convex optimization problem that cannot be solved directly. To tackle the abovementioned challenging problem, alternating optimization (AO) is utilized to decouple the optimization variables. Specifically, the problem is decoupled into three subproblems about the sensing stream precoding matrix, the communication stream precoding matrix, and the auxiliary variables, which is solved alternatively through AO until the convergence is reached. For solving the problem, successive convex approximation (SCA) is applied to deal with the sum-rate threshold constraints on communications, and difference-of-convex (DC) programming is utilized to solve rank-one non-convex constraints. Numerical simulation results verify the superiority of the proposed scheme in terms of improving the communication and sensing QoS.

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Section: Signal Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Transmissive Reconfigurable Intelligent Surface Transmitter Empowered Cognitive RSMA Networks

Liu

Yuan

et al. 2023

IEEE Commun. Lett.

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“…In particular, the authors of [25] reported a new transmissive RIS enabled multitier computing framework, in which the joint beamforming design was explored with the aim of minimizing the overall system energy consumption. In another work [26], the authors further studied the architecture of a downlink communication transceiver for simultaneous wireless information and power transfer (SWIPT) networks. Based on the imperfect CSI assumption, a robust system sum-rate maximization strategy was proposed.…”

Section: A Prior Workmentioning

confidence: 99%

User Selection for Simple Passive Beamforming in Multi-RIS-Aided Multi-User Communications

Jiang¹

2023

Preprint

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<p>This paper focuses on multi-user downlink signal transmission in a wireless system aided by multiple reconfigurable intelligent surfaces (RISs). In such a multi-RIS, multi-user, multi-antenna scenario, determining a set of RIS phase shifts to maximize the sum throughput becomes intractable. Hence, we propose a novel scheme that can substantially simplify the optimization of passive beamforming. By opportunistically selecting a user with the best channel condition as the only active transmitter in the system, it degrades to single-user passive beamforming, where two methods, i.e., joint optimization based on the semidefinite relaxation approach and alternating optimization, are applicable. The superiority of the proposed scheme is demonstrated through Monte-Carlo simulations. </p>

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“…Recently, [9] proposed a transmitter architecture based on transmissive RIS (TRIS), which is a very promising transceiver technology. An important reason for this is that the structure of TRISbased transmitter is quite simple compared to the conventional transmitter [10]. Specifically, the TRIS transmitter consists of a horn-fed antenna, a controller, and a TRIS panel [11].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of RIS-Aided Double Spatial Scattering Modulation for mmWave MIMO Systems

Zhu,

Chen,

et al. 2024

IEEE Trans. Wireless Commun.

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In this paper, we propose a novel transmissive reconfigurable intelligent surface (TRIS) transmitter-enabled spatial modulation (SM) multiple-input multiple-output (MIMO) system. In the transmission phase, a column-wise activation strategy is implemented for the TRIS panel, where the specific column elements are activated per time slot. Concurrently, the receiver employs the maximum likelihood detection technique. Based on this, for the transmit signals, we derive the closedform expressions for the upper bounds of the average bit error probability (ABEP) of the proposed scheme from different perspectives, employing both vector-based and element-based approaches. Furthermore, we provide the asymptotic closed-form expressions for the ABEP of the TRIS-SM scheme, as well as the diversity gain. To improve the performance of the proposed TRIS-SM system, we optimize ABEP with a fixed data rate. Additionally, we provide lower bounds to simplify the computational complexity of improved TRIS-SM scheme. The Monte Carlo simulation method is used to validate the theoretical derivations exhaustively. The results demonstrate that the proposed TRIS-SM scheme can achieve better ABEP performance compared to the conventional SM scheme. Furthermore, the improved TRIS-SM scheme outperforms the TRIS-SM scheme in terms of reliability.

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Robust Sum-Rate Maximization in Transmissive RMS Transceiver-Enabled SWIPT Networks

Cited by 9 publications

References 47 publications

Transmissive Reconfigurable Intelligent Surface Transmitter Empowered Cognitive RSMA Networks

Transmissive Reconfigurable Intelligent Surface Transmitter Empowered Cognitive RSMA Networks

User Selection for Simple Passive Beamforming in Multi-RIS-Aided Multi-User Communications

Performance Analysis of RIS-Aided Double Spatial Scattering Modulation for mmWave MIMO Systems

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