Study on simple signal area estimation for efficient spectrum measurements



Umebayashi, K, Iwata, H, Lehtomäki, J and Lopez-Benitez, M
(2017) Study on simple signal area estimation for efficient spectrum measurements. In: 26th European Conference on Networks and Communications (EuCNC 2017), 2017-6-12 - 2017-6-15, Oulu, Finland.

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Abstract

This paper investigates a signal area (SA) estimation method for spectrum measurements. The spectrum measurements is for estimating statistical information of spectrum usage and required latency is not very critical compared to spectrum sensing. SA denotes the area (in time/frequency domain) occupied by the primary user's signal. The traditional approach, which utilizes Fourier transform (FT) and energy detector (ED) for SA estimation, can achieve low complexity, but its estimation performance is not very high. For this issue, we propose a post-processing, simple SA (S-SA) estimation. S-SA estimation exploits the correlation of the spectrum states among the neighboring tiles, i.e., time/frequency grids, and the fact that SA typically has a rectangular shape to estimate SA with high accuracy and relatively low complexity compared to a conventional method, contour tracing based SA (CT-SA) estimation. Numerical results will show that the S-SA estimation method can achieve better detection performance than CT-SA. Furthermore, it can reduce the computation time compared to the CT-SA estimation.

Item Type: Conference or Workshop Item (Unspecified)
Uncontrolled Keywords: 40 Engineering, 46 Information and Computing Sciences, 4006 Communications Engineering, 4008 Electrical Engineering, 4603 Computer Vision and Multimedia Computation
Depositing User: Symplectic Admin
Date Deposited: 22 May 2017 08:40
Last Modified: 21 Jun 2024 02:02
DOI: 10.1109/eucnc.2017.7980686
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3007591