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
More filters
Proceedings ArticleDOI
Fractionally Spaced Frequency-Domain Equalizer for Broadband Wireless Systems
TL;DR: The overlap-cut method, which can be applied to the existing single carrier air interfaces directly, takes the place of the well-known cyclic-prefix method and it is shown that the fractionally spaced frequency- domain equalizer is superior to the conventional baud spaced ones.
Journal ArticleDOI
Interference Cancellation and Channel Estimation Schemes for Single Carrier Block Transmission with Insufficient Cyclic Prefix
Kazunori Hayashi,Hideaki Sakai +1 more
TL;DR: A pilot signal configuration is proposed for the SC-CP system, which enable us to estimate channel impulse response in the discrete frequency domain even when the channel order is longer than the GI length.
Proceedings ArticleDOI
Robust adaptive frequency-domain equalization for DS-CDMA in non-Gaussian noise channels
TL;DR: To achieve reliable data transmission in frequency-selective multiple-access channel with unknown non-Gaussian noise, a robust adaptive FDE is proposed which consists of a nonlinear preprocessing front-end followed by a linear adaptive F DE which effectively removes the MAI.
Proceedings ArticleDOI
A SC-FDE scheme adopting frequency-domain QR decomposition in MIMO system
TL;DR: A novel effective low-complexity single carrier frequency-domain equalization SC-FDE scheme in multiple-input multiple-output (MIMO) system is introduced and simulation result shows that the proposed scheme can obtain a significant performance gain to the conventional MMSE algorithm.
References
More filters
Book
Adaptive Filter Theory
TL;DR: In this paper, the authors propose a recursive least square adaptive filter (RLF) based on the Kalman filter, which is used as the unifying base for RLS Filters.
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.