A Novel Bistatic Joint Radar-Communication System in Multi-path Environments

Yuan, Quan; Shi, Lei; Liu, Jialei; Ma, Jun

doi:10.1109/iccsn49894.2020.9139060

Cited by 2 publications

References 9 publications

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Performance Analysis of Uplink Joint Communication and Sensing System

Wei

Feng

et al. 2022

2022 IEEE/CIC International Conference on Communications in China (ICCC)

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A near-field integrated sensing, positioning, and communication (ISPAC) framework is proposed, where a base station (BS) simultaneously serves multiple communication users and carries out target sensing and positioning. A novel doublearray structure is proposed to enable the near-field ISPAC at the BS. Specifically, a small-scale assisting transceiver (AT) is attached to the large-scale main transceiver (MT) to empower the communication system with the ability of sensing and positioning. Based on the proposed framework, the joint angle and distance Cramér-Rao bound (CRB) is first derived. Then, the CRB is minimized subject to the minimum communication rate requirement in both downlink and uplink ISPAC scenarios: 1) For downlink ISPAC, a downlink target positioning algorithm is proposed and a penalty dual decomposition (PDD)-based double-loop algorithm is developed to tackle the non-convex optimization problem. 2) For uplink ISPAC, an uplink target positioning algorithm is proposed and an efficient alternating optimization algorithm is conceived to solve the non-convex CRB minimization problem with coupled user communication and target probing design. Both proposed optimization algorithms can converge to a stationary point of the CRB minimization problem. Numerical results show that: 1) The proposed ISPAC system can locate the target in both angle and distance domains merely relying on single BS and limited bandwidths; and 2) the positioning performance achieved by the hybrid-analog-anddigital ISPAC approaches that achieved by fully digital ISPAC when the communication rate requirement is not stringent.

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