Cover
Vol. 7 No. 2 (2011)

Published: December 31, 2011

Pages: 120-124

Original Article

Performance Evaluation of Downlink WiMAX System in Vicinity of UWB System

Abstract

In this paper, we evaluate the performance of WiMAX downlink system in vicinity of UWB system. The study is achieved via simulating a scenario of an office building which utilizes from both WiMAX and UWB appliances. From the simulation results, we found that WiMAX system is largely affected by the UWB interference. However, in order to overcome the interference problem and achieve reasonable BER (Bit Error Rate) of 10 -4 , we found that it is very necessary to raise the WiMAX transmitted power in relative to that of UWB interferer. So, the minimum requirements for WiMAX system to overcome UWB interference are stated here in this work.

References

  1. R. Giuliano, F. Mazzenga, and D. Porcino, “ Use of mitigation techniques to guarantee simultaneous operation of ultra-wide band and third generation cellular radio systems,” IST Mobile and Wireless Communications Summit, Lyon, France, June, 2004.
  2. S.S. Mo, A.D. Gelman, “On the power spectral density of UWB signals 802.15.3a ” , Proceeding of Wireless Communications and Networking Conference, Atlanta, USA, vol.2, March 2004, pp. 999 – 1002.
  3. FCC, “Revision of part 15 of the commissions rules regarding ultrawideband transmission systems ” , First Report and Order, ET Docket 98-153, FCC 02-8, adopted/released Feb./April 2002.
  4. A. Ghosh, D.R. Wolter, J.G. Andrews, and R. Chen, “B roadband wireless access with WiMax/8O2.16: Current performance benchmarks and future potential ” , IEEE Communication Mag., vol.43, no.2, Feb. 2005, pp.129 – 136.
  5. Cisco Systems white paper, “IEEE 802.16 and WiMAX broadband wireless access for everyone ” , July 2003, available at [www.intel.com/netcomms/ events/ downloads/ ieee80216 wp.pdf].
  6. Andrade, A.G., Parra, V., “ Evaluation of UWB Interference at WiMax Systems Based on a Generalized Pulse Waveform ”, Computers, 2009, CONIELECOMP 2009, pp. 214 – 219.
  7. Durantini, A., Giuliano, R., Mazzenga, F., Valente, D., “ Analysis of UWB interference to WiMAX for detect and avoid procedures ”, Communications, 2007, PIMRC 2007, pp. 1 – 5.
  8. Sanghoon Par k, Larson, L.E., Milstein, L.B., “ Phase noise effects on signal detection for UWB/WiMAX coexistence ”, Military Communications Conference, MILCOM 2008, pp. 1 – 7.
  9. Cano, E., Rabbachin, A., Fortuny, J., “ Performance analysis of WiMAX systems in the presence of MB-OFDM UWB 6th International Symposium on Wireless Communication Systems, ISWCS 2009, pp. 264 – 268.
  10. Perez, J., Beltran, M., Morant, M., Llorente, R., Cavallin, L., “ Protection margins for joint operation of WiMAX 802.16e and WiMedia-defined UWB radio in personal area networks ”, 723 – 727.
  11. Available at [www.mathworks.com], last accessed date: 4/1/2009.
  12. IEEE 802.16-2004 Standard Specification, available at [http://ieee802.org/16/pubs/80216-2004.html], last accessed date: 20/1/2009.
  13. Martin Clark and Mike Mulligan, "UWB fixed-point model (multiband OFDM)", 2004, available at [http//www.mathworks.com/matlabcentral/fileexchange/45], last accessed date: 14/11/2008.