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
Pseudo Block Coded Single-Carrier Transmission and Frequency-Domain Equalization and Decoding
TL;DR: This paper evaluates, by computer simulation, average bit error rate (BER) performance when using pseudo block coded SC-FDE transmission and shows that frequency-domain equalization and decoding can achieve BER performance superior to 2 step decoding, in which FDE and hard decision block decoding are separately performed.
Book ChapterDOI
Uplink Physical Layer Functions
TL;DR: This chapter describes the physical layer protocols and functional processing in LTE/LTE-Advanced uplink direction and the multiple-access scheme selected for the LTE uplink to satisfy the above design requirements is SC-FDMA.
Proceedings ArticleDOI
A comparison between OFDM and SC-FDE over wideband satellite downlinks
TL;DR: In this article, simulation results are provided, which show that SC-FDE offers some improvements to conventional OFDM in a S-UMTS downlink in the context of satellite communications.
Flexible Transmission Scheme for 4GWireless Systems withMultiple Antennas
François Horlin,Frederik Petre,Eduardo Lopez-Estraviz,Frederik Naessens,Liesbet Van der Perre +4 more
TL;DR: The generic transmission scheme is extended to integrate the space-division multiplexing (SDM) and the orthogonal space-time block coding (STBC), and the linear frequency-domain minimum mean square error (MMSE) joint detector is derived.
Journal ArticleDOI
A Simple Sparse Channel Estimation Method for Single-Carrier Frequency Domain Equalization Based on Noise Space
TL;DR: A simple sparse channel estimation method is proposed for SC-FDE system based on noise space, through sorting the results of the Least-squares channel estimation, channel tap locations and value are evaluated and result shows that it can achieve significantly improved performance in frequency selective fading sparse channel.
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.