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Titolo:
Design and realization of an FPGA-based generator for chaotic frequency hopping sequences
Autore:
Cong, L; Wu, XF;
Indirizzi:
Nanjing Inst Commun Engn, Nanjing 210016, Peoples R China Nanjing Inst Commun Engn Nanjing Peoples R China 210016 Peoples R China
Titolo Testata:
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS
fascicolo: 5, volume: 48, anno: 2001,
pagine: 521 - 532
SICI:
1057-7122(200105)48:5<521:DAROAF>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
COMPLEX SPREADING SEQUENCES; ASYNCHRONOUS DS-CDMA; SYSTEMS; COMMUNICATION; INTERFERENCE; PROBABILITY;
Keywords:
chaos; field programmable gate arrays; frequency hop communication; random number generation; sequences;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
--discip_EC--
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Cong, L Nanjing Inst Commun Engn, Nanjing 210016, Peoples R China Nanjing Inst Commun Engn Nanjing Peoples R China 210016 R China
Citazione:
L. Cong e X.F. Wu, "Design and realization of an FPGA-based generator for chaotic frequency hopping sequences", IEEE CIRC-I, 48(5), 2001, pp. 521-532

Abstract

Chaos-based pseudonoise (PN) sequences for spread spectrum (SS) communications ranks amongst the most promising applications of chaos to communications, This paper deals with the design and realization of a chaotic frequencyhopping (FH) sequence generator that is compatible with current FH/SS technologies. A simplistic generator architecture adopting nonlinear auto-regressive (AR) filter structures is proposed, which is based on the random sequence model and the metric entropy criterion for generation of random sequences, Conventional PN sequences are employed to perturb the generator such that the resulted sequences fulfill the FH requirements on period and familysize, In addition, a chaos-based FH sequence generator prototype is realized in field programmable gate arrays (FPGAs) and various tests are performed. The generator produces long period FH sequences with uniform distribution over the available bandwidth, large linear complexity as well as suboptimal Hamming correlation properties, Bit error rate (BER) performance of the chaos-based asynchronous FH/CDMA system is evaluated by means of computer simulation, These results suggest that the cost-effective and well-performing generator has the potential to be incorporated into existing FH systems.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 11/07/20 alle ore 21:10:26