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
Combined frequency domain feedforward and turbo decision feedback equalization for single carrier W-LAN systems
A. Koppler,A. Spronger,R. Weigel +2 more
TL;DR: The proposed scheme achieves the potential of ideal decision feedback equalization for block transmission with cyclic prefix and shows a considerable performance increase for highly frequency selective radio channels given in W-LAN environments.
BookDOI
Powerline-Kommunikation für Batteriemanagement-Systeme in Elektro- und Hybridfahrzeugen
TL;DR: In this paper, a channel modeling approach, as well as an analysis of the PLC channel behavior and noise based on measurements is presented, and singlecarrier and multi-carrier communication systems are designed, evaluated by simulations, and compared among them.
Journal ArticleDOI
Improved turbo equalization based on soft ISI cancellation
TL;DR: A novel equalization scheme that lies on an extension of soft ISI cancellation paradigm in the sense that the matched filter output is used to estimate the transmitter symbol and the number of outputs can vary depending on the delay spread of the channel.
Journal ArticleDOI
Signal-Carrier Cooperative DF Relay Using Adaptive Modulation
TL;DR: It is shown by computer simulation that the use of adaptive modulation can achieve higher throughput than fixed modulation and reduces by about 9 dB the required normalized total transmit SNR for a 10%-outage throughput of 0.8 bps/Hz compared to direct transmission.
Journal ArticleDOI
Antenna Beam-Forming for a 60 GHz Transceiver System
TL;DR: In this paper, the effects of the physical parameters of antenna arrays on the RMS delay spread and BER have been investigated in LOS/NLOS condition, where adaptive antenna arrays are considered for the beamforming.
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.