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
Pulse Repetition and Cyclic Prefix: Different Transmitting Strategies for Impulse Radio UWB Systems
Tiziano Bianchi,Simone Morosi +1 more
TL;DR: The complexity analysis and simulation results show that the FD approach is effective for high data-rate transmission and in the presence of many data flows, whereas RAKE is more suitable in low-data-rate systems transmitting few data flows.
Patent
SISO equaliser and SISO decoder connected in feedback relationship, and suitable for receiving signals from multiple antennae transmitters
TL;DR: In this paper, a soft-in-soft-out (SISO) equaliser for use in a receiver for receiving data from a transmitter configured to transmit from a plurality of transmit antennas simultaneously is described.
Journal ArticleDOI
Frequency domain detectors in different short-range ultra-wideband communication scenarios
Tiziano Bianchi,Simone Morosi +1 more
TL;DR: The results show that the MMSE receiver achieves a remarkable performance, especially in the case of highly loaded high data-rate systems, and the proposed approach is well suited for high-throughput applications in indoor wireless environments where multipath propagation tends to increase the effects of the interference.
Journal Article
SSB Transmission using Analog SC-FDE
TL;DR: It is confirmed that the SC-FDE contract will not be extended to include SSB.
Journal ArticleDOI
Performance of Star 16/64QAM Schemes Using Turbo FDE with Iterative Decision-Directed Channel Estimation for DFT-Precoded OFDMA
TL;DR: This paper presents the average block error rate (BLER) performance of star 16/64QAM schemes using iterative decision-directed channel estimation (IDDCE) associated with the turbo frequency domain equalizer (FDE) for discrete Fourier transform-precoded Orthogonal Frequency Division Multiple Access (OFDMA).
References
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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.