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
Pilot Design Criteria for Single Carrier Frequency Domain Equalization on a Real-Time DSP-Based MIMO Test-Bed
TL;DR: A new pilot structure for joint carrier frequency offset (CFO) and channel estimation is proposed and evaluated, to address the adverse inter-symbol interference and the severe CFO due to hardware impairments.
Proceedings ArticleDOI
Research of Single Carrier Frequency-Domain Equalization algorithm for ATSC Digital TV receiver
TL;DR: The optimized FBLMS algorithm is optimized by adding a PN moving correlation channel estimation algorithm and the simulation results show the optimized algorithm can shorten the time for convergence for more than half and improve the performance.
A Closed-form BER Expression for Differentially Modulated DS-CDMA signals with Frequency-domain Differential Detection and Equalization
Liu Le,Adachi Fumiyuki +1 more
TL;DR: A closed-form BER expression is derived for the FDDDE reception of DQPSK-modulated DS-CDMA signals as a function of the normalized root mean square delay spread and the normalized Doppler frequency and an optimum IIR filter coefficient is found under different channel conditions.
Towards Interference-Immune and Channel-Aware Multicarrier Schemes: Filters, Lattices, and Interference Issues
TL;DR: Improvements on OFDM, interference issues in uncoordinated networks are addressed in this dissertation considering different multicarrier schemes, and the efficacy of non-orthogonal schemes are shown along with POT to address the other-user interference, which relies on the fact that self-interference problem is easier than other- user interference problem in an un Coordinated network.
Proceedings ArticleDOI
Single-Carrier Frequency-Domain Equalization for Distributed Space-Time Block-Codes with Amplify-and-Forward Relaying
TL;DR: It is shown that the order-two spatial diversity gain achieved by this distributed STBC SC-FDE scheme is higher than that of conventional without-relay-assisted transmissions over frequency-selective channels.
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