Performance Comparison of FH-MFSK System with Various Diversity Combining Schemes under Worst Case Partial Band Jamming

Sungdon MOON  Yeomin YOON  Jeungmin JOO  Kwangeog LEE  Kiseon KIM  

IEICE TRANSACTIONS on Communications   Vol.E86-B   No.4   pp.1443-1447
Publication Date: 2003/04/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technology
FH/MFSK,  diversity combining scheme,  fading,  Rayleigh,  Rician,  

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In fast frequency hopped (FFH) non-coherent MFSK systems, the diversity combining scheme can be used effectively in order to combat the interference, especially jamming noise. In this paper, we simulate and discuss the BER performance of FH/MFSK system for different diversity combining schemes, such as linear combining, clipped-linear combining, normalized envelop detection (NED), order statistics (OS) NED and product combining receiver (PCR), in the presence of both the worst case partial band jamming (PBJ) and the fading channel. The performances of those combining schemes except for linear combining are similar each other in the worst case PBJ without the fading. In the existence of both the worst case PBJ and the fading channel, the clipped-linear combining scheme suffers a larger drop in performance than other combining schemes. It is noteworthy that the performances of OSNED and PCR are the best in Rayleigh fading channel among those combining schemes.