1995 IEEE 45th Vehicular Technology Conference. Countdown to the Wireless Twenty-First Century
DOI: 10.1109/vetec.1995.504981
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Abstract: This thesis focuses on advanced signal processing techniques for multicarrier modulation, in particular, orthogonal frequency division multiplexing (OFDM). OFDM promises a substantial increase in data rate and robustness against the frequency selectivity of multipath channels. For coherent detection, channel estimation is essential for receiver design. In this thesis, we will present a receiver design where the channel estimator exploits the sparse nature of the physical channel. We present the most popular su… Show more

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Cited by 1,236 publications
(681 citation statements)
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“…It is worth noting that a totally different looking Figure 2 will be obtained if we choose another set of p 0 , p 1 and p, but the asymptotical behavior as f D T 0 will definitely be the same, as proved and explained in (8). Therefore, it can be inferred that WF-LS with orders 2 implicitly exists certain linearity which results in its failure in high speed communication environments, in which case the approximate linearity of the channel frequency responseĤ p 0 (k) andĤ p 1 (k) between p 0 and p 1 disappears because of fast fading channels.…”
Section: Substituting (3) Into (2) and Lettingmentioning
confidence: 63%
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“…It is worth noting that a totally different looking Figure 2 will be obtained if we choose another set of p 0 , p 1 and p, but the asymptotical behavior as f D T 0 will definitely be the same, as proved and explained in (8). Therefore, it can be inferred that WF-LS with orders 2 implicitly exists certain linearity which results in its failure in high speed communication environments, in which case the approximate linearity of the channel frequency responseĤ p 0 (k) andĤ p 1 (k) between p 0 and p 1 disappears because of fast fading channels.…”
Section: Substituting (3) Into (2) and Lettingmentioning
confidence: 63%
“…Channel estimation problems in this situation have been well studied and solved in the literature. For example, least squares (LS) or minimum mean square error (MMSE) based channel estimation methods [8] can be used to estimate the diagonal of the channel frequency response matrix, or we can further proceed to eliminate noise in transformdomain [9]. On the other hand, Considering that Wiener filter (WF) is the best interpolation method at the time dimension in terms of minimizing MSE [10], Dong et al [11] and Zheng and Xiao [12] derive the expression for Wiener filter combined LS based channel estimation (hereafter called WF-LS), combining LS based channel estimation with WF.…”
Section: Introductionmentioning
confidence: 99%
“…Note that the decoding of the received system information and receiver synchronization was assumed to be ideal. Figures 15,16,17 and 18 show the bit error rate (BER) performance versus the carrier-to-noise ratio (CNR) of transmission parameter Nos. 1-4 in Table 11 for 6 MHz bandwidth under AWGN, Brazil-D channel for 4K UHD ELP, and TU-6 channel for HD BLP.…”
Section: Available Transmission Parameters and Reception Performancesmentioning
confidence: 99%
“…Many studies on channel estimation (CE) can be found for OFDM signal transmission. Frequency-domain CE techniques based on the MMSE and least square (LS) criteria were proposed in [44]. It is shown in [44] that MMSE-CE is superior to LS-CE with respect to the estimation accuracy, while LS-CE has a lower complexity level.…”
Section: Channel Estimation (Ce)mentioning
confidence: 99%
“…This can be utilized by the delay time-domain windowing technique to improve the channel estimation accuracy [44].…”
Section: Channel Estimation (Ce)mentioning
confidence: 99%