Abstract
In this paper, we propose a robust received signal strength (RSS) based localization method in mixed line-of-sight/non-line-of-sight (LOS/NLOS) environments, where additional path losses caused by NLOS signal propagations are included. Considering that the additional path losses vary in a dramatic range, we express the additional path losses as the sum of a balancing parameter and some error terms. By doing so, we formulate a robust weighted least squares (RWLS) problem with the source location and the balancing parameter as unknown variables, which is, simultaneously, robust to the error terms. By employing the S-Lemma, the RWLS problem is transformed into a non-convex optimization problem, which is then approximately solved by applying the semidefinite relaxation (SDR) technique. The proposed method releases the requirement of knowing specific information about the additional path losses in the previous study. Simulation results show that the proposed method works well in both dense and sparse NLOS environments.
This work was supported in part by the National Natural Science Foundation of China under Grant 61571249, Zhejiang Provincial Natural Science Foundation under Grant LY18F010011, and the K. C. Wong Magna Fund in Ningbo University.
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References
Cheung, K., So, H., Ma, W.-K., Chan, Y.T.: Least squares algorithms for time-of-arrival-based mobile location. IEEE Trans. Signal Process 52(4), 1121–1130 (2004)
Yang, L., Ho, K.C.: An approximately efficient TDOA localization algorithm in closed-form for locating multiple disjoint sources with erroneous sensor positions. IEEE Trans. Signal Process 57(12), 4598–4615 (2009)
Li, X.: RSS-based location estimation with unknown pathloss model. IEEE Trans. Wirel. Commun. 5(12), 3626–3633 (2006)
Patwari, N., Ash, J.N., Kyperountas, S., Hero, A., Moses, R.L., Correal, N.S.: Locating the nodes: cooperative localization in wireless sensor networks. IEEE Signal Process. Mag. 22(4), 54–69 (2005)
Vaghefi, R., Gholami, M., Buehrer, R., Strom, E.: Cooperative received signal strength-based sensor localization with unknown transmit powers. IEEE Trans. Signal Process. 61(6), 1389–1403 (2013)
Chan, F.K.W., So, H.C., Zheng, J., Lui, K.W.K.: Best linear unbiased estimator approach for time-of-arrival based localization. IET Signal Process. 2(2), 156–162 (2008)
So, H.C., Lin, L.: Linear least squares approach for accurate received signal strength based source localization. IEEE Signal Process. Lett. 59(8), 4035–4040 (2011)
Ouyang, R., Wong, A.-S., Lea, C.-T.: Received signal strength based wireless localization via semidefinite programming: noncooperative and cooperative schemes. IEEE Trans. Veh. Technol. 59(3), 1307–1318 (2010)
Wang, Z., Zhang, H., Lu, T., Gulliver, T.A.: Cooperative RSS-based localization in wireless sensor networks using relative error estimation and semidefinite programming. IEEE Trans. Veh. Technol. 68(1), 483–497 (2019)
Wang, G., Chen, H., Li, Y., Jin, M.: On received-signal-strength based localization with unknown transmit power and path loss exponent. IEEE Wirel. Commun. Lett. 1(5), 536–539 (2012)
Tomic, S., Beko, M., Dinis, R.: RSS-based localization in wireless sensor networks using convex relaxation: noncooperative and cooperative schemes. IEEE Trans. Veh. Technol. 64(5), 2037–2050 (2015)
Wang, G., Yang, K.: A new approach to sensor node localization using RSS measurements in wireless sensor networks. IEEE Trans. Wirel. Commun. 10(5), 1389–1395 (2011)
Oka, A., Lampe, L.: Distributed target tracking using signal strength measurements by a wireless sensor network. IEEE J. Sel. Areas Commun. 28(7), 1006–1015 (2010)
Tomic, S., Beko, M., Tuba, M., Correia, V.M.F.: Target localization in NLOS environments using RSS and TOA measurements. IEEE Wirel. Commun. Lett. 7(6), 1062–1065 (2018)
Tomic, S., Beko, M.: A robust NLOS bias mitigation technique for RSS-TOA-based target localization. IEEE Signal Process. Lett. 26(1), 64–68 (2019)
Boyd, S., Vandenberghe, L.: Appendix. In: Convex Optimization, pp. 626–627. Cambridge University, Cambridge (2004)
Chen, H., Wang, G., Ansari, N.: Improved robust TOA-based localization via NLOS balancing parameter estimation. IEEE Trans. Veh. Technol. 68(6), 6177–6181 (2019)
Grant, M., Boyd, S.: CVX: MATLAB software for disciplined convex programming, version 2.1, December 2018. http://cvxr.com/cvx
Toh, K.C., Todd, M.J., Tutuncu, R.H.: SDPT3: a matlab software package for semidefinite programming. Opt. Methods Softw. 11(12), 545–581 (1999)
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Sun, Y., Wang, G., Li, Y. (2020). Robust RSS-Based Localization in Mixed LOS/NLOS Environments. In: Gao, H., Feng, Z., Yu, J., Wu, J. (eds) Communications and Networking. ChinaCom 2019. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 312. Springer, Cham. https://doi.org/10.1007/978-3-030-41114-5_49
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