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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Journal ArticleDOI
Comparative Study on Receivers Performance Using DFE and LE Equalizer for Uwb Communication System
Shailja Rajput,Rakesh Mandal +1 more
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Throughput Performance of DS-CDMA HARQ With Overlap FDE Using Pilot-assisted Channel Estimation
TL;DR: The future of DS-CDMA, HARQ, FDE, and GI is in doubt, according to reports.
Dissertation
Serviços pós-4G em redes de satélite LEO com recepção multi-pacote e com handover
TL;DR: This thesis considers the design of hybrid protocols combining H-ARQ and NDMA for satellite networks with demand-assigned traffic and shows that the proposed system is energy efficient and can provide enough QoS to support high demand services such as video telephony.
Proceedings ArticleDOI
Pseudo Block Coded Single-Carrier Transmission Using Frequency-Domain Block Signal Detection
TL;DR: In this paper, the authors proposed frequency-domain block signal detection aided FDEDs for PBC-SC transmission: frequency domain iterative interference cancellation (FDIC), maximum likelihood block sig-nal detection employing QR decomposition and M algorithm (QRM-MLBD), and belief propagation (BP).
Proceedings ArticleDOI
An improved space-time block code for two transmit antennas and three time slots
P Sindhu,Abdul Hameed +1 more
TL;DR: The encoding along with the frequency domain decoding is presented with extensive simulation results to back the superiority of the new space-time block code developed, which offers lower bit error rate at a code rate of one and is suitable for SC-FDE systems.
References
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Journal ArticleDOI
Analysis and Simulation of a Digital Mobile Channel Using Orthogonal Frequency Division Multiplexing
TL;DR: The analysis and simulation of a technique for combating the effects of multipath propagation and cochannel interference on a narrow-band digital mobile channel using the discrete Fourier transform to orthogonally frequency multiplex many narrow subchannels, each signaling at a very low rate, into one high-rate channel is discussed.
Journal ArticleDOI
BER sensitivity of OFDM systems to carrier frequency offset and Wiener phase noise
TL;DR: In this contribution the transmission of M-PSK and M-QAM modulated orthogonal frequency division multiplexed (OFDM) signals over an additive white Gaussian noise (AWGN) channel is considered and the degradation of the bit error rate is evaluated.
Journal ArticleDOI
Polyphase codes with good periodic correlation properties (Corresp.)
TL;DR: This correspondence describes the construction of complex codes of the form exp i \alpha_k whose discrete circular autocorrelations are zero for all nonzero lags.