Journal ArticleDOI
Polyphase codes with good nonperiodic correlation properties
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TLDR
N -phase Codes are described which have an autocorrelation function with one main peak and very small side peaks and doppler shift effects appear to be similar to those of linear FM radar pulse compression.Abstract:
N -phase Codes are described which have an autocorrelation function with one main peak and very small side peaks. With N phases an N^{2} long pulse sequence is generated. Properties have been verified for N up to 8 and a rule for main peak-to-side-peak ratio is conjectured for larger N . For N greater than 5 . the ratio is substantially better than the best ratios which have been shown for binary bipolar codes. Doppler shift effects appear to be similar to those of linear FM radar pulse compression.read more
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Frequency domain equalization for single-carrier broadband wireless systems
TL;DR: 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.
Journal ArticleDOI
Crosscorrelation properties of pseudorandom and related sequences
TL;DR: This paper presents a survey of recent results and provides several new results on the periodic and aperiodic crosscorrelation functions for pairs of m-sequences and for Pair of related (but not maximal-length) binary shift register sequences.
Journal ArticleDOI
Lower bounds on the maximum cross correlation of signals (Corresp.)
TL;DR: This correspondence establishes lower bounds on how small the cross correlation and autocorrelation can simultaneously be.
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OFDM and MC-CDMA for Broadband Multi-User Communications, WLANs and Broadcasting
TL;DR: In this article, the benefits of channel coding and space time coding in the context of various application examples and features numerous complete system design examples are discussed. But the authors do not discuss the trade-off between channel quality fluctuations and frequency domain spreading codes.
References
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Journal ArticleDOI
An introduction to matched filters
TL;DR: In a tutorial exposition, the following topics are discussed: definition of a matched filter; where matched filters arise; properties of matched filters; matched-filter synthesis and signal specification; some forms of matched filter.
Journal ArticleDOI
Phase shift pulse codes with good periodic correlation properties
TL;DR: A method of generating phase shift pulse codes of arbitrarily long length with zero periodic correlation except for the peak for zero shift is presented.