Journal ArticleDOI
Frequency domain equalization for single-carrier broadband wireless systems
Reads0
Chats0
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:Â
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
Journal ArticleDOI
Cyclic Prefixed OQAM-OFDM and its Application to Single-Carrier FDMA
TL;DR: Simulation results confirm the effectiveness of the proposed SC-FDMA in terms of EF, power ratio, instantaneous-to-average power ratio and cubic metric performances and Turbo receiver for improved bit error rate (BER) performance.
Journal ArticleDOI
Channel estimation for adaptive frequency-domain equalization
TL;DR: In this paper, the channel response is estimated in the frequency domain following two different approaches: the first operates independently on each frequency bin while the second exploits the fading correlation across the signal bandwidth.
Patent
Spreading and precoding in OFDM
TL;DR: In this paper, a spread-OFDM signal with a low peak-to-average power ratio (PAPR) and orthogonal code spaces is transmitted in cooperative-MIMO systems.
Journal ArticleDOI
Frequency-Domain Equalization for Broadband Single-Carrier Multiple Access
TL;DR: The principle of joint FDE/antenna diversity combining is introduced and various SC multiple access techniques with one-tap FDE are reviewed, i.e., SC-FDMA, SC-CDMA, block spread CDMA, and so on.
Patent
Method and system for dynamic spectrum access using detection periods
Mark A. Mchenry,Igor Bazarov,Dmitry Dain,Jevgenijs Livsics,Filip Perich,Olga Ritterbush,Karl Steadman +6 more
TL;DR: In this article, a DSA-enabled device senses spectrum use in a region and, based on the detected spectrum use, selects one or more communication channels for use, while avoiding or reducing interference with other devices.
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.