Improved CSE with DLS-MMSE Criteria in TH-UWB System

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DOI:

https://doi.org/10.26636/jtit.2022.151421

Keywords:

channel shortening equalizer, inter-symbols interference, rake receiver, time hopping, ultra-wide-band, ZF-MMSE

Abstract

This article presents a study on the use of deterministic least squares criteria combined with the minimum mean square error method for the purpose of computing filter coefficients of the channel shortening equalizer. This method is well known to alleviate inter-symbol interference in time hopping UWB systems. The validity of this method is applied to shorten the impulse response of the effective UWB channels and, therefore, reduce the complexity of the rake receiver. Results show a very promising advantage compared to partialrake (P-Rake), selective-rake (S-Rake) and optimal maximum shortening signal-to-noise ratio methods.

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References

[1] M. Z. Win and R. A. Scholtz, „Ultra-wide bandwidth time-hopping spread-spectrum impulse radio for wireless multiple-access communications", IEEE Trans. on Commun., vol. 48, no. 4, pp. 679-691, 2000. DOI: https://doi.org/10.1109/26.843135
View in Google Scholar

[2] L. Fang and H. Zailu, „Low complexity multi-user detectors of TH-PPM UWB system", in Proc. of Int. Conf. on Wirel. Commun., Network. and Mob. Comput., Wuhan, China, 2005.
View in Google Scholar

[3] A. F. Molisch, „Channel models for ultra-wide band personal area networks", IEEE Wirel. Commun., vol. 10, no. 6, pp. 14-21, 2003. DOI: https://doi.org/10.1109/MWC.2003.1265848
View in Google Scholar

[4] Z. Ahmadian and L. Lampe, „Robust design of widely linear preequalization filters for pre-rake UWB systems", IEEE Trans. Commun., vol. 61, no. 10, pp. 4206-4217, 2013. DOI: https://doi.org/10.1109/TCOMM.2013.0828131.120920
View in Google Scholar

[5] A. Rajeswaran, Somayazulu, and V. S. Foerster, „Rake performance for a pulse based UWB system in a realistic UWB indoor channel", in Proc. Int. Conf. on Commun. ICC'03, Anchorage, AK, USA, 2003.
View in Google Scholar

[6] N. Benotmane, S. A. Elahmar, I. Dayoub, and W. A. Hamouda, „Improved eigenfilter design method for channel shortening equalizer in TH-UWB", IEEE Trans. Veh. Technol., vol. 67, no. 8, pp. 7749-7753, 2018. DOI: https://doi.org/10.1109/TVT.2018.2822178
View in Google Scholar

[7] S. I. Husain, J. Yuan, and J. Zhang, „Rake performance after channel shortening by decay factor optimization in UWB channels", in Proc. IEEE 66th Veh. Technol. Conf. VTC-2007 Fall, Baltimore, MD, USA, 2007. DOI: https://doi.org/10.1109/VETECF.2007.259
View in Google Scholar

[8] L. Zhang and C. Y. Yang, „Performance analysis of channel shortening of Rake receiver in ultra-wideband systems", in Proc. IEEE Veh. Technol. Conf. VTC. Montreal, QC, Canada, 2006. DOI: https://doi.org/10.1109/VTCF.2006.166
View in Google Scholar

[9] N. Benotmane and S. A. Elahmar, „Channel shortening equalizer for multi-access TH-UWB in the presence of multipath and multiuser interferences", Radioelectron. and Commun. Syst., vol. 60, no. 8, pp. 339-349, 2017. DOI: https://doi.org/10.3103/S0735272717080027
View in Google Scholar

[10] S. I. Husain and J. Choi, „Single correlator based UWB receiver implementation through channel shortening equalizer", in Proc. Asia Pacific Conf. on Commun. APCC 2005, Perth, WA, Australia, 2005, pp. 610-614, 2005. DOI: https://doi.org/10.1109/APCC.2005.1554134
View in Google Scholar

[11] P. J. Melsa, R. C. Younce, and C. E. Rohrs, „Impulse response shortening for discrete multitone transceivers", IEEE Trans. on Commun., vol. 44, no. 12, pp. 1662-1672, 1996. DOI: https://doi.org/10.1109/26.545896
View in Google Scholar

[12] K. Ragoubi, M. Hélard, and M. Crussiѐre, „Low complexity channel shortening technique applied to MB-OFDM UWB systems", in Proc. 4th Int. Conf. on Sig. Process. and Commun. Syst., Gold Coast, QLD, Australia, 2010. DOI: https://doi.org/10.1109/ICSPCS.2010.5709684
View in Google Scholar

[13] A. Mohan and K. V. S. Haris, „Low complexity adaptation for SISO channel shortening equalizers", Int. J. of Electron. and Commun. (AEU), vol. 66, no 8, pp. 600-604, 2012. DOI: https://doi.org/10.1016/j.aeue.2012.03.011
View in Google Scholar

[14] B. Das and S. Das, „RAKE-MMSE Time domain equalizer for high data rate UWB communication system", in Proc. Ann. IEEE India Conf., Ahmedabad, India, 2009. DOI: https://doi.org/10.1109/INDCON.2009.5409346
View in Google Scholar

[15] S. Sparrer and R. F. H. Fischer, „MMSE-based version of OMP for recovery of discrete-valued sparse signals", Electron. Lett., vol. 52, no. 1, pp. 75-77, 2016. DOI: https://doi.org/10.1049/el.2015.0924
View in Google Scholar

[16] P. M. Ndao, M. Hélard, M. Crussiѐre, and F. Yven, „Channel shortening for OFDM systems: An improved algorithm in noisy environments", in Proc. IEEE Int. Conf. on Ultra-Wide-Band ICUWB 2014, Paris, France, 2014, pp. 228-233. DOI: https://doi.org/10.1109/ICUWB.2014.6958983
View in Google Scholar

[17] N. Yuan, „An equalisation technique for high rate OFDM systems", M.Sc. thesis, Department of Electrical Engineering, University of Saskatchewan, Saskatoon, Canada, 2003 [Online]. Available: https://www.collectionscanada.gc.ca/obj/s4/f2/dsk3/SSU/TC-SSU-12022003213031.pdf
View in Google Scholar

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Submitted

2023-04-26

Published

2022-03-30

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How to Cite

[1]
A. Djebbari and S. A. Elahmar, “Improved CSE with DLS-MMSE Criteria in TH-UWB System”, JTIT, vol. 87, no. 1, pp. 93–98, Mar. 2022, doi: 10.26636/jtit.2022.151421.

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