Frequency domain equalization for single-carrier broadband wireless systems
Citations
11 citations
11 citations
Cites methods from "Frequency domain equalization for s..."
...(17): 0(0): 0% overhead, 5(1): 10% overhead, 10(2): 20% overhead; Symbol detector: first carrying out MMSE equalization in frequency domain [8], [12], then performing symbol detection in time domain; Turbo decoder: max-Log-MAP algorithm with maximum 8 iterations; Slot boundary frequency hopping: no; Pilot sequences for different tx antennas: different cyclic shifts of a common Zadoff-Chu sequence [2]; Channel estimation: averaging two pilots within one subframe of length 1ms....
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11 citations
Cites background from "Frequency domain equalization for s..."
...Though, OFDMA is an attractive technology to circumvent inter-symbol interference (ISI) however these systems are also very sensitive to high PAPR and carrier frequency offsets (CFO) [4, 5]....
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...Implementation of OFDMA with DWT not only includes the advantages of FFT-OFDM but also provides additional benefits in the form of low PAPR, high spectral efficiency due to non-utilization of CP and strong resistance to CFO [10]....
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...OFDMA is an attractive technology to circumvent inter-symbol interference (ISI) however these systems are also very sensitive to high PAPR and carrier frequency offsets (CFO) [4, 5]....
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...Therefore, OFDM system does not provide better spectral shaping to its sub-carriers due to its poor frequency localization and thus, makes it vulnerable to CFO [7]....
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11 citations
Cites background from "Frequency domain equalization for s..."
...One prominent advantage over OFDMA is that the SCFDMA signal has lower PAPR because of its inherent single carrier structure([3])....
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11 citations
Cites background from "Frequency domain equalization for s..."
...However, due to the problems associated with OFDM such as a high peak-to-average power ratio, the concept of single carrier transmission with FDE [1] has been recognized as a powerful alternative in RF communications....
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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]....
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...Overlap-save or overlap-add signal processing techniques could also be used to avoid the extra overhead of the cyclic prefix [Fer85], [Hay96]....
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2,627 citations
"Frequency domain equalization for s..." refers background in this paper
...OFDM transmits multiple modulated subcarriers in parallel [ 1 ]....
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...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 ]....
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1,816 citations
1,624 citations