Journal ArticleDOI
Frequency domain equalization for single-carrier broadband wireless systems
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TLDR
This article surveys frequency domain equalization (FDE) applied to single-carrier (SC) modulation solutions and discusses similarities and differences of SC and OFDM systems and coexistence possibilities, and presents examples of SC-FDE performance capabilities.Abstract:
Broadband wireless access systems deployed in residential and business environments are likely to face hostile radio propagation environments, with multipath delay spread extending over tens or hundreds of bit intervals. Orthogonal frequency-division multiplex (OFDM) is a recognized multicarrier solution to combat the effects of such multipath conditions. This article surveys frequency domain equalization (FDE) applied to single-carrier (SC) modulation solutions. SC radio modems with frequency domain equalization have similar performance, efficiency, and low signal processing complexity advantages as OFDM, and in addition are less sensitive than OFDM to RF impairments such as power amplifier nonlinearities. We discuss similarities and differences of SC and OFDM systems and coexistence possibilities, and present examples of SC-FDE performance capabilities.read more
Citations
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Proceedings ArticleDOI
Block transmission with linear frequency domain equalization for dispersive optical channels with direct detection
TL;DR: It is shown that FDE can be advantageously applied for optical transmission over dispersive channels as well as in direct-detection systems and the optimal coefficients for zero forcing and minimum mean square error equalization are reviewed.
Journal ArticleDOI
Frequency-Domain Turbo Equalization and Multiuser Detection for DS-UWB Systems
P. Kaligineedi,Vijay K. Bhargava +1 more
TL;DR: This paper derives low-complexity FD minimum mean square error turbo equalization schemes for single-user binary phase shift keying and quaternary bi-orthogonal keying DS-UWB systems and combines them with soft interference cancelation to obtain multiuser FD turbo detectors.
Journal ArticleDOI
Maximum diversity in single-carrier frequency-domain equalization
TL;DR: It is proved that SC-FDE is also capable of collecting full multipath diversity even without channel coding, the first analytical proof of the diversity gain of SC- FDE.
Journal ArticleDOI
SC-FDE for Offset Modulations: An Efficient Transmission Technique for Broadband Wireless Systems
TL;DR: This paper considers frequency-domain receiver design for OQPSK and OQAM schemes, and proposes several FDE designs where there is no IQI in the sampling instants as well as iterative FDE receivers with IQI cancellation.
Proceedings ArticleDOI
Coherent optical transmission with frequency-domain equalization
Koichi Ishihara,Takayuki Kobayashi,Riichi Kudo,Yasushi Takatori,Akihide Sano,Eiichi Yamada,Hiroji Masuda,Yutaka Miyamoto +7 more
TL;DR: In this article, the authors demonstrated 25-Gb/s (21.7-b/s after coding) single-carrier (SC) transmission with QPSK format over 240 km of SMF (4080 ps/nm) by employing frequency-domain equalization (FDE).
References
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Analysis and Simulation of a Digital Mobile Channel Using Orthogonal Frequency Division Multiplexing
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BER sensitivity of OFDM systems to carrier frequency offset and Wiener phase noise
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