A Hardware-Efficient Algorithm for Real-Time Computation of Zadoff–Chu Sequences

Mansour, Mohammad M.

doi:10.1007/s11265-012-0705-3

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…To create a cell detector, a threshold is required to determine if multiple PSS correlations on the three Zadoff Chu sequences and at different time offsets are valid. Most PSS detectors that use a threshold skip the development entirely by saying that it is predetermined [28]. Commonly as in [24] [29], a detector uses a threshold based on the mean of the correlation results.…”

Section: A Design Challengesmentioning

confidence: 99%

Detection Algorithm for Cellular Synchronization Signals in Airborne Applications

Stevens

Younis

2021

IEEE Access

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Cellular to air communication is critical for the booming aerial package delivery and transportation business. Detecting cellular signals in airborne applications is challenging because it requires receiving and processing waveforms that are subject to significantly more interference than those experienced in terrestrial settings. This paper highlights and tackles the complexity of 4G Long Term Evolution (LTE) signal synchronization in high altitude applications, e.g., cell access onboard an aircraft. Specifically, we design a novel cell detector that operates efficiently under high interference levels found in airborne applications, maintains a constant false alarm rate using an optimized threshold implementation for Zadoff Chu sequences, and monitors multiple towers with different time delays simultaneously. We validate our cell detector through simulation and experimentation. Lastly, the cell detector is used to estimate the interference in live waveforms taken from an aircraft at 2 to 2.5 km altitude and velocities of 200-400 km/h. Our cell detection model can be adapted to support 5G New Radio (NR) synchronization signals as NR deploys aerial support in the future. The threshold implementation to handle correlation spurs can be applied directly to other Zadoff Chu based signals such as random access signals found in both LTE and NR.

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Section: A Design Challengesmentioning

confidence: 99%

Detection Algorithm for Cellular Synchronization Signals in Airborne Applications

Stevens

Younis

2021

IEEE Access

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“…Furthermore, the discrete Fourier transform (DFT) of a ZC sequence is another ZC sequence (see e.g. [13]). A ZC sequence of odd length L [11,12] is defined as…”

Section: Arxiv:151107316v1 [Csit] 23 Nov 2015mentioning

confidence: 99%

A Low-Complexity Detection Algorithm for the Primary Synchronization Signal in LTE

Nassralla

Mansour

Jalloul

2016

IEEE Trans. Veh. Technol.

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Abstract-One of the challenging tasks in LTE baseband receiver design is synchronization, which determines the symbol boundary and transmitted frame start-time, and performs cell identification. Conventional algorithms are based on correlation methods that involve a large number of multiplications and thus lead to high receiver hardware complexity and power consumption. In this paper, a hardware-efficient synchronization algorithm for frame timing based on K-means clustering schemes is proposed. The algorithm reduces the complexity of the primary synchronization signal for LTE from 24 complex-multiplications, currently best known in the literature, to just 8. Simulation results demonstrate that the proposed algorithm has negligible performance degradation with reduced complexity relative to conventional techniques.

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Analysis of Timing Performance of Zadoff–Chu Sequence in WFRFT Domain under Frequency Offset Effect

Zhongyao

Sha

Liu

2019

Lecture Notes in Electrical Engineering

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A Hardware-Efficient Algorithm for Real-Time Computation of Zadoff–Chu Sequences

Cited by 3 publications

References 14 publications

Detection Algorithm for Cellular Synchronization Signals in Airborne Applications

Detection Algorithm for Cellular Synchronization Signals in Airborne Applications

A Low-Complexity Detection Algorithm for the Primary Synchronization Signal in LTE

Analysis of Timing Performance of Zadoff–Chu Sequence in WFRFT Domain under Frequency Offset Effect

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