On the Perfomance of Multiband OFDM under Log-normal Channel Fading

Authors: N.M. Anas, S.K.S. Yusoff, R. Mohamad

Abstract:

A modified Saleh-Valenzuela channel model has been adapted for Ultra Wideband (UWB) system. The suggested realistic channel is assessed by its distribution of fading amplitude and time of arrivals. Furthermore, the propagation characteristic has been distinct into four channel models, namely CM 1 to 4. Each are differentiate in terms of cluster arrival rates, rays arrival rate within each cluster and its respective constant decay rates. This paper described the multiband OFDM system performance simulates under these multipath conditions. Simulation work described in this paper is based on WiMedia ECMA-368 standard, which has been deployed for practical implementation of low cost and low power UWB devices.

Keywords: Log-Normal, Multiband OFDM, Saleh-Valenzuela

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1075713

References:

[1] Revision of Part 15 of the Commission-s Rules Regarding Ultra Wideband Transmission System, First Report and Order.
[2] A. Batra et al. "Design of multiband OFDM system for realistic UWB Channel Environments". IEEE Transaction on Microwave Theory and Techniques, vol. 52, pp. 2123-2138, September 2004
[3] H. Viittala, M. Hamalainen, J. Iinatti, "Comparative Studies of MBOFDM and DS-UWB with Co-Existing Systems in AWGN Channel" in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 1-5, September 2006
[4] C. Snow, L, Lampe, R. Schobe, "Performance Analysis of Multiband OFDM for UWB Communication," in Proc. International Conference on Communication, pp. 2573-2578, May 2005
[5] High Rate Ultra Wideband PHY and MAC Standard, 3rd edition ECMA-368, December 2008
[6] H. Q. Lai, W. Siriwongpairat, and K. J. R. Liu, "Performance analysis of MB-OFDM UWB system with imperfect synchronization and intersymbol interference," IEEE Journal on Selected Topic of Signal Processing, vol. 1, pp. 521-534, October 2007
[7] A. Saleh and R. Valenzuela, "A statistical model for indoor multipath propagation," IEEE Journal on Selected Areas Communications, vol. SAC-5, pp. 128-137, February 1987.
[8] A.F. Molisch, J.R. Foerster and M. Pendergrass, "Channel models for ultra wideband personal area networks," IEEE wireless Communication Magazine, vol 10, pp. 14-21, December 2003.
[9] IEEE (2003) 802.15-02/490R-L, "Channel Modelling Sub Committee", Report finals
[10] N.M. Anas, S.K.S. Yusof, R. Mohamad, N.A. Sulaiman, "Analytical Performance of Zero Padded Multibands OFDM under UWB Environments," in Proc. International Conference on Computer Modeling and Simulation, pp. 310-312, April 2011