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Non-Coherent Fourth-Order Detector for Impulse Radio Ultra Wideband Systems: Empirical Evaluation Using Channel Measurements


Low-complex and low-power non-coherent energy detectors (EDs) are interesting for low data rate impulse radio (IR) ultra wideband (UWB) systems, but suffer from a loss in performance compared to coherent receivers. The performance of an ED also strongly depends on the integration interval (window size) of the integrator and the window position. This paper presents a non-coherent fourth-order detector (FD) which can discriminate between Gaussian noise signals and non-Gaussian IR-UWB signals by directly estimating the fourth-order moment of the received signal. The performance of the detectors is evaluated using realistic channels measured in a corridor, an office and a laboratory environment. The results show that bit-error-rate (BER) performance of the proposed FD receiver is slightly better than the ED in low signal-to-noise ratio (SNR) region and its performance improves as the SNR increases. In addition, BER of the FD receiver is less sensitive to overestimation of the integration interval making it relatively robust to variations of the channel delay spread. Finally, a criteria for the selection of integration time of the proposed detector is suggested.

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  1. 1

    Durisi G., Benedetto S. (2005) Comparison between coherent and noncoherent receivers for UWB communications. EURASIP Journal on Applied Signal Processing 3: 359–368

  2. 2

    Tufvesson, F., & Molisch, A. F. (2004). Ultra-wideband communication using hybrid matched filter correlation receivers. In Proceedings of IEEE vehicular technology conference (Vol. 3, pp. 1290–1294).

  3. 3

    Molisch A.F. (2005) Ultrawideband propagation channels-theory, measurement, and modelling. Proceedings of IEEE transactions vehicular technology conference 54(5): 1528–1545

  4. 4

    Gezici, S., Kobayashi, H., Poor, H. V., & Molisch, A. F. (2004). Optimal and suboptimal linear receivers for time-hopping impulse radio systems. In Proceedings of IEEE wireless communications and networking conference (WCNC), Atlanta, GA (Vol. 2, pp. 908–913).

  5. 5

    Ning, H., & Tepedelenlioglu, C. (2004). Performance analysis of non-coherent UWB receivers at different synchronization levels. In Proceedings of IEEE global telecommunications conference (Vol. 6, pp. 3517–3521).

  6. 6

    Hoctor, R., & Tomlinson, H. (2002). Delay-hopped transmitted-reference RF communications. In Proceedings of IEEE UWBST Baltimore, MD (pp. 265–269).

  7. 7

    Choi D. J., Stark W. E. (2002) Performance of ultra-wideband communications with suboptimal receivers in multipath channels. IEEE Journal of Sleceted Areas Communications 20(9): 1754–1766

  8. 8

    Weisenhorn, M., & Hirt, W. (2005). Robust noncoherent receiver exploiting UWB channel properties. In Proceedings of IEEE conference on UWB systems and technologies (pp. 156–160).

  9. 9

    Sahin, M. E., Guvenc, I., & Arslan, H. (2005). Optimization of energy detector receivers for UWB systems. In Proceedings of IEEE 61st vehicular technology conference, (vol. 2, pp. 1386–1390).

  10. 10

    Song, N., Wolf, M., & Haardt, M. (2007). Low-complexity and energy efficient non-coherent receivers for UWB communications. In Proceedings of IEEE 18th international symposium on personal, indoor and mobile radio communications, PIMRC (pp. 1–4).

  11. 11

    Tian, Z., & Sadler, B. M. (2005). Weighted energy detection of ultra-wideband signals. In Proceedings of IEEE 6th workshop on signal processing advances in wireless communications (pp. 1068–1072).

  12. 12

    D’Amico A. A., Mengali U., Arias-de-Reyna E. (2007) Energy-detection UWB receivers with multiple energy measurements. IEEE Transactions on Wireless Communications 6(7): 2652–2659

  13. 13

    Khan, M. G., Sällberg, B., Nordberg, J., & Claesson, I. (2009). Non-coherent detection of impulse radio UWB signals based on fourth order statistics. In Proceedings of IEEE international conference on UWB, ICUWB (pp. 824–828).

  14. 14

    Hyvärinen A., Karhunen J., Oja E. (2001) Independent component analysis. Wiley, New York

  15. 15

    Chao, Y. -L. (2004). Optimal integration time for UWB transmitted reference correlation receivers. In: Asilomar conference on signals, systems and computers (pp. 647–651).

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Correspondence to Muhammad Gufran Khan.

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Khan, M.G., Sällberg, B., Nordberg, J. et al. Non-Coherent Fourth-Order Detector for Impulse Radio Ultra Wideband Systems: Empirical Evaluation Using Channel Measurements. Wireless Pers Commun 68, 27–46 (2013).

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  • UWB communications
  • Non-coherent detection
  • Higher-order moments
  • Channel measurements