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
Semi-blind space-time equalization for single-carrier MIMO systems with block transmission
TL;DR: A novel semi-blind space-time equalization method for wireless Multiple-Input Multiple-Output (MIMO) spatial multiplexing systems using Single-Carrier Cyclic-Prefix (SC-CP) block transmissions using Independent Component Analysis is employed to track the time-varying MIMO channel.
Journal ArticleDOI
Analysis of the Impact of the Receiver I/Q Imbalance on the Achievable Rate of SC-FDE Systems
TL;DR: This paper analyzes the achievable rate of the single-carrier system with a frequency-domain equalizer (SC-FDE) under the receiver in-phase/quadrature phase (I/Q) imbalance in the radio frequency front-end and shows that depending on the value of I/Q imbalance parameters, the achievable rates approaches a saturation level.
Proceedings ArticleDOI
Space-Frequency Equalization for Broadband Single Carrier MIMO Systems
TL;DR: The proposed SC-SFE outperforms previous layered space frequency (LSF) receivers with imperfect channel knowledge and yields equal diversity gains to all data streams without the error propagation that is common to most LSF schemes.
Proceedings ArticleDOI
Cooperative Frequency-Domain Beamforming for Broadband SC-FDE Systems
Peiran Wu,Robert Schober +1 more
TL;DR: This work proposes optimal and suboptimal FD-BF schemes for frequency-domain linear equalization (FD-LE) and an idealized matched filter receiver and develops corresponding expressions for the signal-to-interference-plus-noise ratio (SINR).
Proceedings ArticleDOI
Frequency domain constant modulus algorithm for broadband wireless systems
TL;DR: Simulations show that the normalized FD-MCMA converges much faster than the MCMA and the FD- MCMA while maintaining approximately the same bit error rate (BER) performance.
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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
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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.