Development and study of novel frequency-hopped multiple-access receiver
Frequency Hopping Spread Spectrum (FHSS) systems refer to the signal broadcast over seemingly random series of frequencies. These systems have been popular in commercial and military applications as eavesdroppers hear unintelligible blips and only a few bits are affected due to the jamming on one...
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| Format: | Theses and Dissertations |
| Language: | English |
| Published: |
2015
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| Online Access: | http://hdl.handle.net/10356/64829 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Frequency Hopping Spread Spectrum (FHSS) systems refer to the signal broadcast
over seemingly random series of frequencies. These systems have been popular in
commercial and military applications as eavesdroppers hear unintelligible blips and
only a few bits are affected due to the jamming on one frequency. This dissertation
focuses on the performance of Binary Frequency-Shift Keying (BFSK), Fast
Frequency-Hopped Spread Spectrum (FFHSS) system, Fast Frequency-Hopped/
Binary Frequency-Shift Keying (FFH/BFSK) linear combining receiver and
Frequency-Hopped Multiple Access (FHMA) system over various fading channels
such as Additive White Gaussian Noise (A WGN), Rayleigh fading channel and
Rician fading channel. The Bit-Error Rate (BER) performance of the systems over
different fading channels is obtained via simulation and is compared which shows
that for a wide range of signal-to-noise ratio, the performance of the system is
affected by different factors such as number of users, modulation order, fading
models, number of hops per bit, etc. |
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