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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Journal ArticleDOI
Channel and noise variance estimation and tracking algorithms for unique-word based single-carrier systems
TL;DR: Novel algorithms for estimating and tracking the channel and noise variance in SC systems are proposed by exploiting a unique word (UW) extension and benefit from low complexity and lend themselves to SC systems employing frequency-domain equalization at the receiver.
Journal ArticleDOI
Frequency-domain equalization for continuous phase modulation
Jun Tan,Gordon L. Stuber +1 more
TL;DR: In this article, a single-carrier frequency domain equalization (SC-FDE) approach for continuous phase modulation (CPM) is proposed, and the methodology for maintaining phase continuity with a cyclic guard interval is presented.
Patent
System and method for reuse of communications spectrum for fixed and mobile applications with efficient method to mitigate interference
TL;DR: In this article, a communications system network that enables secondary use of spectrum on a noninterference basis is disclosed, which uses high-processing gain probe waveforms that enable propagation measurements to be made with minimal interference to the primary users.
Proceedings ArticleDOI
Improving SC-FDMA Performance by Turbo Equalization in UTRA LTE Uplink
TL;DR: Simulation results show that the turbo equalizer can improve the BLER performance around 1 dB with only a few iterations, and improve the SC-FDMA performance over OFDM, especially at high coding rate.
Journal ArticleDOI
Broadband analog network coding
Haris Gacanin,Fumiyuki Adachi +1 more
TL;DR: The findings show that a drawback of ANC scheme is its lack of diversity combining at the destination, which causes a slightly lower ergodic capacity in comparison with cooperative relaying irrespective of radio access scheme.
References
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Analysis and Simulation of a Digital Mobile Channel Using Orthogonal Frequency Division Multiplexing
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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
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