Journal ArticleDOI
Frequency domain equalization for single-carrier broadband wireless systems
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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
Multi-Carrier or Single-Carrier Transmission: An Optical Debate
William Shieh,Xingwen Yi +1 more
TL;DR: In this paper, the authors revisited the long-standing debate on the superiority between OFDM and single-carrier frequency-domain equalization and proposed a modulation scheme for future 100 Gb/s transmission systems.
Proceedings ArticleDOI
M-ary CPM receivers for frequency domain processing and differential phase detector
Cheol-Hee Park,Baxter F. Womack +1 more
TL;DR: The proposed CPM receiver can achieve a bit error performance comparable to that of Viterbi algorithm-based decoders with decomposition-based correlators, and the differential phase detector with frequency domain phase equalizer replaces a bank of correlators and filters of conventional CPM receivers.
Proceedings ArticleDOI
Low PAPR SCMA Systems Based on Carrier Techniques
TL;DR: In this article, a hybrid carrier SCMA (HC-SCMA) system based on weighted-type fractional Fourier transform (WFRFT) was proposed to reduce the peak-to-average power ratio (PAPR).
Proceedings Article
Impact and Compensation of Sample Clock Offset on Uplink SC-CDMA Systems
TL;DR: In this article, the impact of multi-user sample clock offset on the performance of uplink single-carrier code division multiple access (SC-CDMA) is investigated.
References
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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.
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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.