Title :
Diversity for a phase-coherent frequency-hopping spread-spectrum system
Author :
Lance, Emmanuel ; Kaleh, Ghassan Kawas
Author_Institution :
Dept. Commun., Ecole Nat. Superieure des Telecommun., Paris, France
Abstract :
Frequency diversity for a phase-coherent frequency-hopping spread-spectrum system is proposed, The communicator band is partitioned into L disjoint subbands and a replica of a data symbol is transmitted in every subband. Also, each replica hops independently in its subband. Therefore, phase continuity and maximal ratio combining of the received replicas are possible. Error performance analysis proves the superiority of the system as compared to the conventional FH-SS system that uses optimum diversity. We show that a smart jammer should be present in all subbands. We also give the condition that forces the jammer to spread its interference on the whole communicator band
Keywords :
continuous phase modulation; diversity reception; error statistics; frequency hop communication; jamming; military communication; phase shift keying; spread spectrum communication; BPSK; FH-SS communication; data symbol; disjoint subbands; error performance analysis; frequency diversity; frequency-hopping spread-spectrum system; interference; maximal ratio combining; phase continuity; phase-coherent system; received replicas; smart jammer; AWGN; Bandwidth; Correlators; Detectors; Diversity reception; Frequency diversity; Frequency shift keying; Interference; Jamming; Spread spectrum communication;
Conference_Titel :
Military Communications Conference, 1996. MILCOM '96, Conference Proceedings, IEEE
Conference_Location :
McLean, VA
Print_ISBN :
0-7803-3682-8
DOI :
10.1109/MILCOM.1996.568591
