Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/36676
Title: | Two-stage estimation algorithm based on interleaved OFDM for a cooperative bistatic ISAC scenario |
Author: | Leyva, Leonardo Castanheira, Daniel Silva, Adão Gameiro, Atílio |
Keywords: | OFDM MIMO Radar MUSIC Periodogram AoA/AoD estimation |
Issue Date: | 22-Jun-2022 |
Publisher: | IEEE |
Abstract: | This paper considers a cooperative bistatic scenario for integrated sensing and communication (ISAC) paradigm, where transmitter and receiver base stations (BS) are connected through the front-haul to a central unit (CU), enabling cooperation. A multiple-input multiple-output (MIMO) configuration is considered in combination with orthogonal frequency division multiplexing (OFDM). The communication and radio-sensing functions are performed in orthogonal sets of sub-carriers, where the sub-carriers allocated to radio-sensing are distributed among antennas in an interleaved way. The interleaved frame structure is exploited in the design of a new parameter estimation method. The proposed method is a two-stage algorithm to estimate the delay/Doppler shift and angular position of objects (paths) in the channel. First, the multiple signal classification (MUSIC) algorithm estimates the angle-of-arrival (AoA) of the paths. Then, the delay, Doppler shift and angle-of-departure (AoD) are jointly estimated for each AoA combining an extended search over the AoD domain and a two-dimensional periodogram. The simulations show that the delay, Doppler shift and AoA are estimated correctly, while the estimation of the AoD may report error, although it can be compensated. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/36676 |
DOI: | 10.1109/VTC2022-Spring54318.2022.9860521 |
Appears in Collections: | DETI - Comunicações |
Files in This Item:
File | Description | Size | Format | |
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openaccess_VTC_two_stage_paper.pdf | 493.63 kB | Adobe PDF | View/Open |
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