Performance of MAP Channel Estimator in Power Line Communication with OFDM under Impulsive Noise

Year 2018, Volume: 6 Issue: 1, 36 - 41, 15.02.2018

SELVA Muratoğlu Çürük

https://doi.org/10.17694/bajece.401998

Abstract

Power Line Communication (PLC), which is a competitive
technique especially for in-home applications, faces impulsive noise together
with unstable channel characteristics. These two unpredictable factors make the
communication on power lines difficult, which may reduce the efficiency of Orthogonal
Frequency Division Multiplexing (OFDM), the selected modulation standard for PLC.
There exists various channel estimators for PLC in the literature. The former
techniques assume the channel noise is white Gaussian as in the wireless
multipath, while the newer ones model the corrupted noise as impulsive which
results with more complex receivers. In this study, the performance of the
Maximum A-Posteriori (MAP) estimator proposed for additive white Gaussian noise
channels is evaluated for PLC systems with OFDM under the constraint of
impulsive noise. For the simulations multipath channel data is taken from the
literature and Middleton Class A impulsive noise model is used. The results
show that the MAP estimator which is designed with the assumption of white
Gaussian noise has a satisfactory performance even under heavy impulsive noise.

Keywords

Channel estimation, impulsive noise, Orthogonal Frequency Division Multiplexing, Power Line Communication

References

• [1] HomePlug Powerline Alliance Inc. (2005). “HomePlug AV White Paper”, Available: http://www.homeplug.org/media/filer_public/b8/ 68/b86828d9-7e8a-486f-aa82-179e6e95cab5/hpav-white-paper_050818.pdf, date on 17.05.2017.
• [2] J. Huang, P. Wang, Q. Wan, “Robust approach for channel estimation in power line communication”, Journal of Communications and Networks, Vol.14, No.3, 2012, pp.237–242.
• [3] F. Gianaroli, F. Pancaldi, G.M. Vitetta, “On the use of Zadeh's series expansion for modeling and estimation of indoor powerline channels”, IEEE Transactions on Communications, Vol.62, No.7, 2014, pp.2558-2568.
• [4] M. Asadpour, F.A. Ajhiri, B.M. Tazehkand, et al., “Jointly RVM based channel estimation and PAPR reduction using Modified Tabu Search Algorithm in Power Line Communication systems”, Wireless Personal Communications, Vol.84, No.4, 2015, pp.2757-2775.
• [5] Y.R. Chien, “Iterative channel estimation and impulsive noise mitigation algorithm for OFDM-based receivers with application to Power-line communications”, IEEE Transactions on Power Delivery, Vol.30, No.6, 2015, pp.2435–2442.
• [6] M. Asadpour, B.M. Tazehkand, H. Seyedarabi, “A robust Bayesian inference-based channel estimation in power line communication systems contaminated by impulsive noise”, Turkish Journal of Electrical Engineering and Computer Sciences, Vol.24, No.4, 2016, pp.2865-2880.
• [7] Y. Himeur, A. Boukabou, A. Senouci, “Performance of turbo-coded chaotic interleaving and frequency-domain equalization scheme for high speed OFDM-based PLC systems”, Journal of the Franklin Institute, Vol.353, No.15, 2016, pp.3799-3817.
• [8] Y. Himeur, A. Boukabou, “OFDM-based power-line communication enhancement using a turbo coded adaptive impulsive noise compensator”, Telecommunication Systems, Vol.62, No.3, 2016, pp.481-494.
• [9] L. Rugini, P. Banelli, “On the equivalence of Maximum SNR and MMSE estimation: Applications to additive non-gaussian channels and quantized observations”, IEEE Transactions on Signal Processing, Vol.64, No.23, 2016, pp. 6190-6199.
• [10] Y.H. Kim, “Multipath parameter estimation for PLC channels using the GEESE algorithm”, IEEE Transactions on Power Delivery, Vol.25, No.4, 2010, pp. 2339-2345.
• [11] P.A.C. Lopes, J.A.B. Gerald, “Iterative MMSE/MAP impulsive noise reduction for OFDM”, Digital Signal Processing, Vol.69, 2017, pp.252-258.
• [12] M. Zimmermann, K. Dostert, “A multipath model for the powerline channel”, IEEE Transactions on Communication, Vol.50, No.4, 2002, pp.553-559.
• [13] X. Ding, J. Meng, B.R. Petersen, “Blind channel estimation for HomePlug power-line communications: A feasibility?”, IEEE Transactions on Power Delivery, Vol.26, No.2, 2011, pp. 754-763.
• [14] A.A.M. Picorone, L.R. Amado, M.V. Ribeiro, “Linear and periodically time-varying PLC channels estimation in the presence of impulsive noise”, IEEE International Symposium on Power Line Communications and Its Applications, 2010, pp.255-260.
• [15] T. Shongwe, A.J.H. Vinck, H.C. Ferreira, “A study on impulse noise and its models”, SAIEE Africa Research Journal, Vol.106, No.3, 2015, pp.119-131.
• [16] S.M. Curuk, Y. Tanik, “A simplified MAP channel estimator for OFDM systems under Rayleigh fading”, European Transactions on Telecommunications, Vol.21, No.4, 2010, pp.396-405.