Performance comparison of UWB-IR using rake receivers in UWB channel models

Yoshiyuki Ishiyama, Tomoaki Ohtsuki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Citations (Scopus)

Abstract

We evaluate the performance of the Ultra Wideband - Impulse Radio with Walsh Hadamard - BPSK (UWB-IR with WH-BPSK) using Rake receivers in two channel models. The first channel model is proposed by J. Foerster and Q. Li [1], which is referred to as an (A) model. The measurements characterize the channel over the frequency range of 2-8 GHz using 0.167 ns baseband pulses. The amplitudes of multipath are modeled with the lognormal fading distribution. The second channel model is proposed by D. Cassioli and M. Z. Win [2], which is referred to as a (B) model, The measurements characterize the channel over the frequency range of 1.5-3 GHz using 2.0 ns baseband pulses. The amplitudes of multipath are modeled with the Nakagami distribution. We evaluate the Signal to Noise Ratio (SNR) distribution of the RAKE combining output and the bit error rate (BER) of UWB-IR with WH-BPSK using the Partial RAKE (PRAKE) receiver and the Selective RAKE (SRAKE) receiver for the given number of fingers in the two channel models. We show that using the PRAKE receiver, the UWB-IR with WH-BPSK in the (B) model can achieve the better BER than that in the (A) model when the number of fingers is small (i.e., L = 2, 10) and vice versa when the number of fingers is large (i.e., L ≥ 50). We also show that using the SRAKE receiver, the UWB-IR with WH-BPSK in the (A) model can achieve the better BER than that in the (B) model for any L. Therefore, we confirm that the performance of the UWB-IR using the RAKE receivers, particularly, the PRAKE receiver, depends largely on the channel model.

Original languageEnglish
Title of host publication2004 International Workshop on Ultra Wideband Systems; Joint with Conference on Ultra Wideband Systems and Technologies, Joint UWBST and IWUWBS 2004
Pages226-230
Number of pages5
Publication statusPublished - 2004 Dec 1
Event2004 International Workshop on Ultra Wideband Systems; Joint with Conference on Ultra Wideband Systems and Technologies, Joint UWBST and IWUWBS 2004 - Kyoto, Japan
Duration: 2004 May 182004 May 21

Publication series

Name2004 International Workshop on Ultra Wideband Systems; Joint with Conference on Ultra Wideband Systems and Technologies, Joint UWBST and IWUWBS 2004

Other

Other2004 International Workshop on Ultra Wideband Systems; Joint with Conference on Ultra Wideband Systems and Technologies, Joint UWBST and IWUWBS 2004
CountryJapan
CityKyoto
Period04/5/1804/5/21

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Ishiyama, Y., & Ohtsuki, T. (2004). Performance comparison of UWB-IR using rake receivers in UWB channel models. In 2004 International Workshop on Ultra Wideband Systems; Joint with Conference on Ultra Wideband Systems and Technologies, Joint UWBST and IWUWBS 2004 (pp. 226-230). (2004 International Workshop on Ultra Wideband Systems; Joint with Conference on Ultra Wideband Systems and Technologies, Joint UWBST and IWUWBS 2004).