Diversity-combining receiver for FFH/FSK systems over composite effects of partial-band noise interference and multi-tone interference

• Main Author: Tang, You Hui.
• Other Authors: Li Kwok Hung
• Format: Final Year Project
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems
• Online Access: http://hdl.handle.net/10356/52682
• Institution: Nanyang Technological University

MATLAB simulations were performed for a conventional non-coherent binary frequency-shift keying (NCBFSK) receiver employing fast frequency hopping (FFH) spread spectrum over Rayleigh fading channel with both individual and composite effect of partial band noise interference (PBNI) and multi-tone interference (MTI). Each diversity reception is assumed to fade independently. The energy of each symbol was held constant; thus, as diversity increases energy per chip decreases. The partial band noise interference was modelled as a Gaussian process. While multi-tone jamming was assumed to employ the strategy of n=1 band multi-tone jamming, where only a single jamming tone is allowed per hop slot. The effects of additive white Gaussian noise (AWGN) were also included. The interferences were first analysed individually using linear diversity combining technique before the combination of both into the Monte Carlo simulations. Effects of the different power density combination for PBNI and MTI across other diversity combining techniques such as product diversity combining, hard-decision-majority-vote (HDMV) diversity combining and self–normalized (SN) diversity combining would also be considered in this report.