IEEE Transactions on Information Theory · 2007 · 124 citations · 11 references
EngineeringComputer EngineeringElectrical EngineeringDigital CommunicationInformation TheoryWireless CommunicationsChannel CodingCoding TheoryDigital Signal ProcessingMultiple Access TechniquesSpread Spectrum CommunicationWireless Channel ModelingCode Division Multiple AccessDirect-sequence Spread SpectrumFrequency HoppingFrequency-hopping Spread SpectrumSignal Spreading CodesSpreading Codes
Frequency-hopping (FH) spread spectrum and direct-sequence spread spectrum are two main spread-coding technologies. Frequency-hopping sequences are needed in FH code-division multiple-access (CDMA) systems. In this correspondence, three classes of optimal frequency-hopping sequences are constructed with algebraic methods. The three classes are based on perfect nonlinear functions, power functions, and norm functions, respectively. Both individual optimal frequency-hopping sequences and optimal families of frequency-hopping sequences are presented.
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Claude Carlet, Cunsheng Ding · Journal of Complexity · 2004 · 242 citations
R.A. Scholtz · IRE Transactions on Communications Systems · 1977 · 174 citations