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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Proceedings ArticleDOI
A channel estimation algorithm for MIMO-SCFDE systems over fast time-varying multipath channels
TL;DR: A noise-eliminated minimum-mean-square-error channel estimation (MMSE-CE) algorithm that utilizes a novel polynomial interpolation method to obtain the interpolation vectors for channel estimation over fast time-varying multipath channels.
Performance analysis of single carrier - frequency domain equalization over orthogonal frequency division multiplexing using matlab
TL;DR: In this article, a comparative performance analysis of SC-FDE, coded OFDM, and adaptive OFDM schemes is presented, and it is shown that SCFDE achieves comparable or even better performance compared to its OFDM counterpart.
Throughput performance of DS-CDMA MIMO multiplexing with frequency-domain iterative PIC
TL;DR: It is confirmed that DS-CDMA-MIMO and PIC will be using the same design for the next generation of MIMO models.
Journal ArticleDOI
Partial intersection sphere decoding with weighted voting for sparse rotated V-OFDM systems
TL;DR: Simulation results indicate that the proposed receiver improves the symbol error rate performance with reduced complexity, especially for low SNR scenarios.
Proceedings ArticleDOI
Multi-beam Physical Security Scheme: Security Assessment and Impact of Array Impairments on Security and Quality of Service
TL;DR: The set of results presented here show the good tolerance against misalignments of these transmission structures, which is crucial to assess the impact of misaligned beams associated to each user.
References
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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.