Coding Aided Mapping Mdfh System Performance Analysis

In order to achieve better system BER performance, anti-jamming andanti-acquisition performance, traditional frequency hopping (FH) system takes up awide spectrum, resulting in low spectrum efficiency. To solve this problem, in2007, QiLing, Tongtong Li etc, from Michigan State University of USA, proposedmessage-driven frequency hopping (MDFH) technology on International Conference onCommunications (ICC).In the FFH system, it’s difficult to maintain the continuity of the phase, so FSKmodulation mode is commonly used. On the basis of domestic and internationalresearch progress of MDFH, this paper analyzes the BER performance of theDM-MDFH/MFSK receiver and C-MDFH/MSK receiver in the channel with additivewhite Gaussian noise (AWGN) or in frequency non-selective Rayleigh slow fadingchannel theoretically and simulationally. To two typical interference: patial band noisejamming and multitone jamming, we simulationally analyze and compare theanti-interference performance of the DM-MDFH/MFSK system and C-MDFH/MSKsystem.The first chapter describes the research progress of anti-jamming communicationtechnology and presents the problems, lists the contents of this paper.The second chapter firstly introduces the principle of work of DM-MDFH/MFSKsystem, then analyzes the BER performance of the system in the channel with additivewhite Gaussian noise (AWGN) or in frequency non-selective Rayleigh slow fadingchannel theoretically and simulationally.As severe fading and interference presenting in actual channel, the third chapterintroduces error correction coding, presents C-MDFH/MFSK system, then analyzes theBER performance of the system in the channel with additive white Gaussian noise(AWGN) or in frequency non-selective Rayleigh slow fading channel theoretically andsimulationally. Compared to DM-MDFH system the results indicate that the anti-fadingperformance of the system has been improved, and analyzes the improvement ofperformance by increasing the coding complexity. The fourth chapter of the paper comparatively analyzes the anti-interferenceperformance of DM-MDFH system and C-MDFH system anti-jamming performancesimulation by simulation, with two typical interference presenting: patial band noisejamming and multitone jamming.Finally the fifth chapter summarizes the work of the full text, and points out thecontinuation of research and possible future research directions.