Journal ArticleDOI
Frequency domain equalization for single-carrier broadband wireless systems
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
Binary-Input Ternary-Output Turbo Codes for Ternary PSK Transmission
Yuto Hama,Hideki Ochiai +1 more
TL;DR: This work introduces a phase shifting approach for TPSK in order to effectively reduce the PAPR in the framework of OFDM with DFT-precoding, and proposes a design of binary-input ternary-output (BITO) turbo codes that match with TPSk signaling.
Proceedings ArticleDOI
Performance analysis of the bit-interleaved coded modulation using turbo equalization with single carrier frequency domain equalization using subblock signal processing over fast fading channels
TL;DR: An analytical model where the product of the Doppler spread and transmit block length and the number of subblocks signal processing are crucial parameters affecting the transfer function of the equalizer and hence the convergence behavior of the TE-SC-FDE with subblock signal processing.
Proceedings ArticleDOI
A computationally efficient multi-mode equaliser based on reconfigurable frequency domain processing
M.J. Hart,M. Beach +1 more
TL;DR: In this paper, the authors proposed a computationally efficient solution that performs equalisation and despreading using frequency domain processing, enabling the same equaliser to be used for both OFDM and W-CDMA.
Journal ArticleDOI
Performance Improvement by Frequency-Domain Interleaving for OFDM/TDM Using MMSE-FDE in a Wireless Channel
Haris Gacanin,Fumiyuki Adachi +1 more
TL;DR: It is shown that frequency-domain interleaving on a frame-by-frame basis for OFDM/TDM using MMSE-FDE achieves improved BER performance in comparison with conventional OFDM due to enhanced frequency diversity gain.
Proceedings ArticleDOI
An Accurate Low Complexity Method for Studying Quantization Effects in Base Station Cooperation Systems
TL;DR: The Gaussian characteristics of OFDM signals are taken advantage of to characterize analytically CE-OFDM signals, both in terms of power spectral density (PSD) and optimum asymptotic performance.
References
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Journal ArticleDOI
Analysis and Simulation of a Digital Mobile Channel Using Orthogonal Frequency Division Multiplexing
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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.