Title :
The performance of diversity combining for fast frequency hopped NCMFSK in Rayleigh fading
Author :
Gulliver, T.A. ; Ezers, R.E. ; Felstead, E.B. ; Wight, J.S.
Author_Institution :
Carleton Univ., Ottawa, Ont., Canada
Abstract :
Several diversity combining methods which were developed to improve the jamming performance of fast frequency hopped noncoherent M-ary frequency shift keying have been investigated in Rayleigh fading. Based on performance results, the best methods in both jamming and fading are normalized envelope detection (NED), order-statistics (OS) NED, and OS-hard decision majority vote combining. They provide an increased robustness and should not be seriously affected by intelligent jamming and changing jammer strategies. Linear and square-law combining also perform well, but they are not as robust in a changing interference environment
Keywords :
diversity reception; fading; frequency agility; frequency shift keying; jamming; spread spectrum communication; OS-hard decision majority vote combining; Rayleigh fading; diversity combining; fast frequency hopped NCMFSK; jamming; noncoherent M-ary frequency shift keying; normalized envelope detection; order-statistics NED; performance; robustness; spread spectrum communications; Diversity methods; Diversity reception; Envelope detectors; Frequency diversity; Frequency shift keying; Interference; Jamming; Rayleigh channels; Robustness; Voting;
Conference_Titel :
Military Communications Conference, 1992. MILCOM '92, Conference Record. Communications - Fusing Command, Control and Intelligence., IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0585-X
DOI :
10.1109/MILCOM.1992.244038
