Title :
On auto-correlation values of M-phase spreading sequences of Markov chains
Author :
Fujisaki, Hiroshi
Author_Institution :
Graduate Sch. of Natural Sci. & Technol., Kanazawa Univ., Japan
Abstract :
There has recently been intense interest in spreading sequences of Markov chains for asynchronous SSMA (spread-spectrum multiple-access) communication systems. It is experimentally found that the auto-correlation values of M-phase spreading sequences of some Markov chains always take real numbers. In this paper, we theoretically give a necessary and sufficient condition that the auto-correlation values of M-phase spreading sequences of Markov chains always take real numbers
Keywords :
Markov processes; correlation theory; multi-access systems; pseudonoise codes; sequential codes; spread spectrum communication; Markov chain M-phase spreading sequences; asynchronous SSMA communication systems; complex-valued PN sequences; pseudo-noise sequences; real number auto-correlation values; spread-spectrum multiple-access systems; spreading sequence auto-correlation values; Autocorrelation; Binary sequences; Chebyshev approximation; Communication systems; Delay effects; Feedback; Gold; Logistics; Spread spectrum communication; Vectors;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Conference_Location :
Phoenix-Scottsdale, AZ
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010367
