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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.

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Citations
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Proceedings ArticleDOI

Carrier synchronization requirements for CDMA systems with frequency-domain orthogonal signature sequences

TL;DR: In this article, the impact of carrier synchronization errors on CDMA systems using FDOSS is studied, and it is shown that the carrier synchronization requirements are similar to those of OFDMA schemes.
Journal ArticleDOI

Space-Time Cyclic Delay Transmit Diversity for a Multi-Code DS-CDMA Signal with Frequency-Domain Equalization

TL;DR: This paper proposes a 4-antenna space-time cyclic delay transmit diversity (STCDTD), which is a combination of 2-ant Jenna STTD and 2-Antenna CDTD schemes, for orthogonal multi-code direct sequence code division multiple access (DS-CDMA) using FDE.
Patent

Zero division duplexing mimo radio with adaptable rf and/or baseband cancellation

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Proceedings ArticleDOI

Single carrier with multi-channel time-frequency domain equalization for underwater acoustic communications

TL;DR: A multi-channel time-frequency domain equalization method for pseudurandom noise (PN) based SC-FDE is proposed in this paper and it is demonstrated that the uncoded error-free data rates are achieved using one transmitter and six-channel receiving hydrophone array at a distance of 1.8 km.
Journal ArticleDOI

Cross-Layer Congestion Control for Power Efficiency Over Wireless Multihop Networks

TL;DR: This paper proposes a new window control algorithm in the transport layer to improve the throughput and a new power control algorithms in the physical layer to reduce power consumption.
References
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Book

Adaptive Filter Theory

Simon Haykin
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.