Frequency domain equalization for single-carrier broadband wireless systems
Citations
246 citations
Cites background from "Frequency domain equalization for s..."
...A complex receiver for high data rate system can thus be avoided by using frequency domain equalizer [6]....
[...]
243 citations
Cites background or methods from "Frequency domain equalization for s..."
...determined by the two index bits, with the bit streams [0,0], [0,1], [1,0] and [1,1] corresponding to the index patterns [1,2], [2,3], [3,4] and [1,4], respectively....
[...]
...In this section, we briefly introduce the basic communication system models adopted by various IM techniques, including MIMO and single-input multiple-output (SIMO) as well as OFDM and SC-FDE....
[...]
...I. INTRODUCTION DUE TO the fast evolution of smart communication termi-nals and in order to meet the explosive increase of mobile traffic, high-rate transmission schemes have attracted increasing attention from both the academia and industry, featured by orthogonal frequency division multiplexing (OFDM) [1] and single-carrier frequency-domain equalization (SC-FDE) [2]....
[...]
...This makes SC-FDE attractive for uplink transmission....
[...]
...For this aforementioned merit, SC-FDE has also been introduced to VLC [11], where the nonlinearities of LED are severe, and it outperforms other conventional optical modulation schemes, in terms of SNR gains....
[...]
240 citations
Cites background or methods or result from "Frequency domain equalization for s..."
...In the case of a PN-extended transmission, a technique for the channel estimate has been presented in [9]....
[...]
...For a comparison with the results of [8] and [9], we assumed that in all the considered schemes, the receive filter is matched to the transmit pulse shape, and the equalizer sampling is at the symbol rate....
[...]
...Recently, a considerable reduction of complexity has been achieved by the FD linear equalizer [7] and by the DFE with a hybrid structure (H-DFE) [8], [9], where the feedforward (FF) filter is realized in the FD, while the FB filter is realized in the TD....
[...]
...On the other hand, for channels with a low or moderate dispersion, very simple FB filters can be used [9], and the complexity reduction provided by the IBDFEs may be negligible....
[...]
226 citations
Cites background or methods from "Frequency domain equalization for s..."
...There are many methods of performing channel estimation and the basic idea is to transmit a known sequence as preamble [49], and in this work we use the Chu sequence that has a flat magnitude in both the time and frequency domains [47,49]....
[...]
...Although OFDM has gained popularity in the past decade and has been widely implemented in numerous communication standards, there has been on-going debate about which is superior, OFDM and SCFDE [47,48]....
[...]
...32 It can be seen that both OFDM and SCFDE are much superior to SCTDE in their scalability with both dispersion and bit rate....
[...]
206 citations
References
16,062 citations
"Frequency domain equalization for s..." refers methods in this paper
...Adaptation can be done with LMS (least mean square), RLS, or least squares minimization (LS) techniques, analogous to adaptation of time domain equalizers [Hay96], [Cla98]....
[...]
...Overlap-save or overlap-add signal processing techniques could also be used to avoid the extra overhead of the cyclic prefix [Fer85], [Hay96]....
[...]
2,627 citations
"Frequency domain equalization for s..." refers background in this paper
...OFDM transmits multiple modulated subcarriers in parallel [ 1 ]....
[...]
...Several variations of orthogonal frequency-division multiplexing (OFDM) have been proposed as effective anti-multipath techniques, primarily because of the favorable trade-off they offer between performance in severe multipath and signal processing complexity [ 1 ]....
[...]
1,816 citations
1,624 citations