Performance comparisons of various frequency-hopped multiple-access receiver
Frequency-hopped spread-spectrum system is a practiced solution to use the limited bandwidth more efficiently. Frequency-Hopping technology is also considered one of the most efficient communication systems against jamming. This technology has been used in both military and commercial application...
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| Format: | Theses and Dissertations |
| Language: | English |
| Published: |
2018
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| Online Access: | http://hdl.handle.net/10356/75987 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Frequency-hopped spread-spectrum system is a practiced solution to use the limited
bandwidth more efficiently. Frequency-Hopping technology is also considered one of
the most efficient communication systems against jamming. This technology has been
used in both military and commercial applications.
Uncoded coherent Binary Frequency Shift Keying (BFSK) system performs is evaluated
over various channel conditions. Slow frequency hop (SFH) does not give much
improvement to the system performance, so I focus on fast frequency hop (FFH) in this
project. Performances of clipper receiver and linear combining receiver using square
law detector are compared under slow flat fading channel with multitone jamming and
multiple access interferences.
The simulation results show that clipper receiver outperformance linear combining receiver
when the jamming and multiple access interference (MAI) are strong. The performance
improvement is much more obvious when only jamming signal suffers fading
as compared with the case when both data signal and jamming signal suffer from fading. |
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