Part of Springer Nature. In the case of CE with the TDM pilot, we use a Chu-sequence as a pilot given by ; . The system returned: (22) Invalid argument The remote host or network may be down. System ModelThe OFDM transmission system model is illustrated in Figure 1. http://onlinetvsoftware.net/bit-error/bit-error-rate-analysis-jamming-ofdm-systems.php
The decision variables can be represented by , where and are assumed to be Gaussian random variables for . Trans.Inf.&Syst. In comparison with pilot-assisted CE with the TDM pilot, the MSE of the channel estimator with the pilot-assisted CE based on the FDM pilot is more affected by nonlinear noise. The results show that the pilot-assisted CE with the FDM pilot is affected by the nonlinear noise due to both the quantization and the HPA, while the pilot-assisted CE with the
Please try the request again. We note here that the propagation error effect is captured in (13) by the coefficient . Trans.Electron. IEEE Communications Magazine 1997, 35(12):126-144. 10.1109/35.642841View ArticleGoogle ScholarChu DC: Polyphase codes with good periodic correlation properties.
Generated Sun, 02 Oct 2016 13:27:24 GMT by s_hv996 (squid/3.5.20) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.9/ Connection hn with network coding at the physical-layerH GacaninPower Line Communications and Its Applications (ISPLC), 2012 16th IEEE ..., 201272012A new RREQ message forwarding technique based on Bayesian probability theoryV Kanakaris, DL Register now for a free account in order to: Sign in to various IEEE sites with a single account Manage your membership Get member discounts Personalize your experience Manage your profile IEEE, 1404-1408, 2008182008Two-slot channel estimation for analog network coding based on OFDM in a frequency-selective fading channelT Sjodin, H Gacanin, F AdachiVehicular Technology Conference (VTC 2010-Spring), 2010 IEEE 71st, 1-5, 2010162010BER
CE with TDM Pilot In pilot-assisted CE with a TDM-pilot, the transmission block consists of a number of an -sample size frames (i.e., the pilot signal is transmitted in the The ones marked * may be different from the article in the profile.DoneDuplicate citationsThe following articles are merged in Scholar. In our analysis the nonlinear noise is approximated with a Gaussian random variable, where unlike previous studies, we consider the impact of both the DA converter and the HPA. Commun.
Using (12), the second moments , , and are given by the appendix (13) with (14) The pilot-assisted CE using a TDM pilot has a problem IEEE Transactions on Information Theory 1972, 18(4):531-532. 10.1109/TIT.1972.1054840View ArticleMATHGoogle ScholarEdfors O, Sandell M, Van Beek JJD, Wilson SK, Borjesson PO: OFDM channel estimation by singular value decomposition. In this paper, the theoretical BER analysis of the OFDM/TDM in a frequency-selective fading channel is presented. JPN Edition(in Japanese) C Electronics Trans.Electron.
Subscribe Enter Search Term First Name / Given Name Family Name / Last Name / Surname Publication Title Volume Issue Start Page Search Basic Search Author Search Publication Search Advanced Search Since , the channel estimates are obtained only at the frequencies . For lower , can be well approximated as , where erfc denotes the complementary error function. This will be more discussed in details in Section 4.2. Figure 6 PDF of the estimator's error. 3.1.
In (9), and , respectively, denote the th frame's distorted part of the channel gain estimates due to the HPA saturation and quantization at the th subcarrier. my review here Please try the request again. Throughout this paper, -spaced discrete time representation is used, where represents the fast Fourier transform (FFT) sampling period. Using the Bussgang theorem , a nonlinear output can be expressed as the sum of the useful attenuated input replica and an uncorrelated nonlinear distortion as  (3) where
For quantization with -bit resolution (i.e., quantization levels), the signal after the quantization is expressed as . Commun. (Free) Trans. Your cache administrator is webmaster. http://onlinetvsoftware.net/bit-error/bit-error-rate-analysis-of-jamming-for-ofdm-systems.php Since Chu sequence is used as TDM pilot with a constant (practicaly a very low) amplitudes in both the time and frequency domains, the channel estimator is only affected by pilot
Inf.&Syst. FDM Pilot Using (4) and (9), the random variables and are given by (17) Then, using (17), the second moments , , and are given Use of this web site signifies your agreement to the terms and conditions.
Publisher conditions are provided by RoMEO. Please try the request again. Archive Editorial Board[JPN Edition] A JPN Edition(in Japanese) B JPN Edition(in Japanese) C JPN Edition(in Japanese) D JPN Edition(in Japanese) Archive - Open Access Papers Trans. The analog signal is fed to the HPA, most often represented through its input-output characteristic , which may be approximated as (2) for , where denotes the
However, the BER performance with pilot-assisted CE using the TDM pilot is degraded as well, since the nonlinear noise due to the quantization cannot be neglected. IEICE Transactions on Communications 2006, 89(12):3250-3256.View ArticleGoogle ScholarAraujo T, Dinis R: Performance evaluation of quantization effects on multicarrier modulated signals. Trans.Commun. http://onlinetvsoftware.net/bit-error/bit-error-rate-frequency.php The required quantization levels per dimension can be derived as , with , where represents the variance of the additive white Gaussian noise (AWGN)  and
FDM Pilot CE with the FDM pilot requires a frequency interpolation. IEEE Transactions on Communications 2000, 48(10):1755-1764. 10.1109/26.871400View ArticleGoogle ScholarBanelli P, Cacopardi S: Theoretical analysis and performance of OFDM signals in nonlinear AWGN channels. rgreq-5097908ffc2f03dd4ec485f4fc3b200c false WebImagesMore…Sign inExport articlesExport selected articlesExport all my articlesExportCancelMerged citationsThis "Cited by" count includes citations to the following articles in Scholar. Then, the -point FFT is applied to obtain the improved channel gain estimates given by (7) for , where and , respectively, denote the distorted
Trans.Inf.&Syst. - Archive Volume List Trans.Fundamentals. The Ninth International Conference ..., 2004152004Pilot-assisted channel estimation for OFDM/TDM with frequency-domain equalizationH Gacanin, S Takaoka, F AdachiIEEE VEHICULAR TECHNOLOGY CONFERENCE 62 (1), 554, 2005122005Impact of imperfect channel estimation on OFDM/TDM Your cache administrator is webmaster. Numerical Results and Discussions5.
Inf.&Syst. (Free) Trans. Generated Sun, 02 Oct 2016 13:27:24 GMT by s_hv996 (squid/3.5.20) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.8/ Connection Trans.Electron.