báo cáo hóa học:" Adaptive blind timing recovery methods for MSE optimization" potx

... described a blind timing method for ATSC DTV systems that produces better equali zer out- put MSE performance than other OEM-based timing methods such as Gardner timing. The proposed timing recovery ... RESEARCH Open Access Adaptive blind timing recovery methods for MSE optimization Wonzoo Chung Abstract This article presents a non-data-aided adaptive symbol...

Ngày tải lên: 21/06/2014, 17:20

... DFEs for different timing phases (Channel 1, SNR 20–30 dB). Figure 10:. MSE performance of the MMSE DFEs for different timing phases (Channel 2, SNR 20–30 dB). 10 Adaptive blind timing recovery methods ... proposed 2 Figure 3:. Performance of proposed timing for no multipath channel. (a) Timing phases. (b) S-curve for proposed timing. Figure 4:. Performance of prop...

Ngày tải lên: 20/06/2014, 20:20

... without affecting system bit-error-rate (BER) performa nce. To emphasize th e importance of the use of an adaptive R R- WF scheme, both the MSE and the BER performances are evaluated and compared with ... nature of both channels CM2 and CM3, the MSE and the BER performances degrade slightly as compared wit h that of the channel CM1. The MSE and the BER performances of those different...

Ngày tải lên: 20/06/2014, 22:20

... performance. 7. Conclusion In this paper, an adaptive FIC RR-WF channel estima- tion algorithm is proposed for the MB-OFDM UWB communication systems. This RR-WF-based algorithm employs an adaptive ... nature of both channels CM2 and CM3, the MSE and the BER performances degrade slightly as compared wit h that of the channel CM1. The MSE and the BER performances of those different ch...

Ngày tải lên: 21/06/2014, 00:20

... kbits/s for VoIP traffic, R VS = 384 kbits/s for video streaming traffic and R BE = 256 kbits/s for BE traffic. The target BER values are BER RT_max =10 -3 for RT traffic and BER BE_- max =10 -11 for ... distri- bution. As there are no recommendations for multiuser MIMO channel models, we defined a MIMO channel for each user and used the same distribution for all users in orde...

Ngày tải lên: 21/06/2014, 02:20

... analysis for 64 kbps data services: PM outperforms BCPM for mild shadowing (σ dB = 5 dB) and the situation is reversed for se- vere shadowing (σ dB = 10 dB). However, the difference in performance ... perform in different environments. Specifically, under what channel conditions would the one scheme perform better than the other. For this purpose we develop analytical models of link outa...

Ngày tải lên: 22/06/2014, 22:20

... each of the methods [28]. Each feature was measured and ranked according to its merit in both methods. The measurement of the merit for the two methods is defined as follows. The information-gain method ... decision tree, as a basis for comparisons. These classifiers were per- formed using the Waikato Environment for Knowledge Analysis (WEKA) software [19]. First, naive Bayes is th...

Ngày tải lên: 18/06/2014, 15:20

... Central Page 1 of 12 (page number not for citation purposes) Journal of NeuroEngineering and Rehabilitation Open Access Research Time and frequency domain methods for quantifying common modulation ... http://www.jneuroengrehab.com/content/1/1/2 Page 9 of 12 (page number not for citation purposes) Regression plots for low frequency common drive time versus frequency domain techniqu...

Ngày tải lên: 19/06/2014, 10:20

... limit lim t→0 x+ty−x t exists for al l x, y Î U. It is also said to be uniformly smooth if the limit is attained uniformly for x, y Î U. Now we collect some useful lemmas for proving the convergence ... sup j→∞ (x n j − w)+(x − w), for all x ∈ E. Let H(x) = lim sup j→∞ (x n j − x), for all x ∈ E. It follows that H(x)=H(w)+(x − w), for all x ∈ E. For h ≥ 0, from (...

Ngày tải lên: 20/06/2014, 22:20

... experi- mental setup and execution, methods for data analyses, and the reporting format for the test data. Non-standard tests, on the other hand, are tests performed according to any other test ... of 15 and knowledge, the outcome of the different methods can therefore differ. For the evaluators, it is important to be aware of the different methods str engths and limitations. Durd...

Ngày tải lên: 21/06/2014, 03:20