Journal ArticleDOI
Frequency domain equalization for single-carrier broadband wireless systems
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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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Broadband and mobile opportunities: A socio-technical perspective
TL;DR: This paper provides a brief overview of broadband and mobile technologies from a socio-technical perspective, organizes and surveys relevant literature and focuses on emerging issues with broadband connectivity where research will help shape policy, strategy and the use of broadband networks.
Patent
Hybrid band intelligent backhaul radio
Kevin J. Negus,James A. Proctor +1 more
TL;DR: In this paper, a hybrid band intelligent backhaul radio (HB-IBR) is proposed, which is a combination of two radios operating in different bands, such that a common medium access control (MAC) block may be utilized between the dual radios.
Patent
Wireless Communication Apparatus and Wireless Communication Method
TL;DR: In this article, the authors propose a subcarrier allocation control and modulation control for a wireless communication system, which allocates subcarriers for each communication terminal apparatus and selects a modulation scheme in such a manner that required transmission rate is satisfied.
Journal ArticleDOI
Adaptive frequency-domain equalization for single-carrier multiple-input multiple-output wireless transmissions
TL;DR: An adaptive frequency-domain equalization (FDE) algorithm for implementation in single-carrier (SC) multiple-input multiple-output (MIMO) systems is presented and a novel method of reducing the overhead required to train the proposed equalizer is outlined.
Journal ArticleDOI
A Turbo FDE Technique for Reduced-CP SC-Based Block Transmission Systems
TL;DR: A soft-decision-directed correction (SDDC)-aided turbo FDE technique is presented for reduced-CP SC-based block transmission systems using conventional frame structures and the possibility of approximately achieving the maximum power efficiency gain that a strong CP reduction allows is emphasized.
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.