Inner-Frame Time Division Multiplexing Waveform Design of Integrated Sensing and Communication in 5G NR System

Zheng, Jian; Chu, Ping; Wang, Xiaoye; Yang, Zhaocheng

doi:10.3390/s23156855

Cited by 6 publications

(5 citation statements)

References 42 publications

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“…It should be noted that the modulated symbol vector

should be known to all receivers so that

and

can be correctly derived. Therefore, the communication reference signal can be directly utilized for both communication and sensing purposes [ 21 , 38 ], while a specially designed waveform can also be used as long as the receivers reserve the waveform data [ 39 ]. All channel parameters can then be sent to a server for further joint processing, as described in Section 4 .…”

Section: System Modelmentioning

confidence: 99%

Multistatic Integrated Sensing and Communication System Based on Macro–Micro Cooperation

Wang,

Han,

Jin

et al. 2024

Sensors

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A novel multistatic integrated sensing and communication (ISAC) system based on macro–micro cooperation for the sixth-generation (6G) mobile network is proposed. Instead of using macrosites at both the transmitter and receiver sides, microsites are considered as receivers in cooperative sensing. This system is important since microsites can be deployed more flexibly to reduce their distances to the sensing objects, providing better coverage for sensing service. In this work, we first analyze the deployment problem of microsites, which can be deployed along the radius and azimuth angle to cover macrosite cells. The coverage area of each microsite is derived in terms of its position in the cell. Then, we describe an efficient estimating approach for obtaining the position and velocity of sensing objects in the macrosite cell. By choosing multiple microsites around the targeted sensing area, joint data processing with an efficient optimization method is also provided. Simulation results show that the multistatic ISAC system employing macro–micro cooperation can improve the position and velocity estimation accuracy of objects compared to systems employing macrosite cooperation alone, demonstrating the effectiveness and potential for implementing the proposed system in the 6G mobile network.

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“…It should be noted that the modulated symbol vector

should be known to all receivers so that

and

Section: System Modelmentioning

confidence: 99%

Multistatic Integrated Sensing and Communication System Based on Macro–Micro Cooperation

Wang,

Han,

Jin

et al. 2024

Sensors

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show abstract

“…In [120], the authors combined frequency division multiplexing (FDM), time division multiple access (TDMA), and communications carrier sense multiple access (CSMA) to form the RadChat scheduling scheme, thus greatly reducing the level of radar interference. In [121], the authors designed waveforms by optimizing cost functions based on the constrained combination of the peak side lobe ratio (PSLR) and integrated side lobe ratio (ISLR) of velocity ambiguity functions. By solving this optimization equation, the system can have high detection and estimation performance in a high SCNR scenario, thereby reducing the cost of the system.…”

Section: Distributed Cooperative Sensing Technologymentioning

confidence: 99%

“…- [121] The optimization strategy is designed as a combined optimization problem of PSLR and ISLR constraints.…”

Section: Distributed Cooperative Sensing Technologymentioning

confidence: 99%

ISAC towards 6G Satellite–Terrestrial Communications: Principles, Status, and Prospects

Gu,

Xu,

Feng

et al. 2024

Electronics

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With the evolution of fifth-generation (5G) to sixth-generation (6G) communication systems, the utilization of spectrum resources faces incremental challenges. Integrated sensing and communication (ISAC) technology, as a crucial element in 6G technology, is expected to enhance energy efficiency and spectrum utilization efficiency by integrating radar and communication signals, achieving environmental awareness, and enabling scene interconnection. Simultaneously, to realize the vision of seamless coverage in 6G, research on integrated satellite-terrestrial communication has been prioritized. To integrate the advantages, ISAC for integrated satellite–terrestrial networks (ISTNs) in 6G has emerged as a potential research direction. This paper offers an extensive overview of the present state of key technologies for ISAC and the development of ISTNs. Meanwhile, with a focus on the ISTN-oriented 6G ISAC system, several hotspot topics, including future application scenarios and key technological developments, are outlined and demonstrated.

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“…, p} denotes the set consisting of b(p + 1) for each iteration. The details of the IAA and the method can be seen in reference [12]. Then, we discuss the computation complexity of the three signal processing method.…”

Section: Cs-based Signal Processingmentioning

confidence: 99%

“…The main research work on ISAC is how to design the waveform to obtain good performance of both sensing and communication. Generally, the waveform design of ISAC can be mainly divided into three categories: sensing-centered [9,10], communicationcentered [11,12], and joint design [13,14]. The sensing-centered methods add communication functions by reusing the existed sensing system.…”

Section: Introductionmentioning

confidence: 99%

Dual-Pulse Repeated Frequency Waveform Design of Time-Division Integrated Sensing and Communication Based on a 5G New Radio Communication System

Chu,

Yang,

Zheng

2023

Sensors

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With the development of 5G communication systems, it is a hot topic to embed integrated sensing and communication (ISAC) based on the existing 5G base station by sharing the hardware and the same frequency spectrum. In this paper, we propose a dual pulse repeated frequency (dual-PRF) waveform design of time-division ISAC (TD-ISAC) based on a 5G new radio (NR) communication system using downlink communication slots. We choose time-division mode to design waveform to avoid the interference between sensing and communication. Embedding sensing functions in a 5G NR system, we design a dual-PRF sensing slot to satisfy the constraints of common channel and uplink communication. Considering two uplink modes, namely flexible and fixed, we design two dual-PRF waveforms and illustrate the sensing theory performance of the designed waveform by the ambiguity function. Then, we exploit the designed waveform to the vehicle parameter estimation. To verify that the designed waveform has good adaptability to different signal processing methods, we realize the parameter estimation by two types of methods: the discrete Fourier transformation-based method and the compressed sensing-based method. At last, we verify the effectiveness of the designed waveform system by simulation experiments and real traffic scenarios.

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Inner-Frame Time Division Multiplexing Waveform Design of Integrated Sensing and Communication in 5G NR System

Cited by 6 publications

References 42 publications

Multistatic Integrated Sensing and Communication System Based on Macro–Micro Cooperation

Multistatic Integrated Sensing and Communication System Based on Macro–Micro Cooperation

ISAC towards 6G Satellite–Terrestrial Communications: Principles, Status, and Prospects

Dual-Pulse Repeated Frequency Waveform Design of Time-Division Integrated Sensing and Communication Based on a 5G New Radio Communication System

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