Title :
Frequency-hopping codes for multiple-access channels: a geometric approach
Author :
D.B. Jevtic;H.S. Alkhatib
Author_Institution :
Dept. of Math. Sci., Alaska Univ., Fairbanks, AK, USA
Abstract :
Basic notions pertinent to code-division multiple-user communication signals are defined in set-theoretic terms. A general treatment of composition codes by identifying a time-frequency spectrogram with a set of points in a finite plane is provided. It is shown that a finite affine plane is a powerful generator of frequency-hopping codes for multiple-access channels and that it provides optimum performance codes in a noiseless environment.
Keywords :
"Lattices","Maximum likelihood decoding","Demodulation","Frequency estimation","Convolutional codes","State estimation","Maximum likelihood estimation","Upper bound","Constellation diagram","Partial response channels"
Journal_Title :
IEEE Transactions on Information Theory
