Message-Driven Frequency Hopping -- Design and Analysis
WASA '08 Proceedings of the Third International Conference on Wireless Algorithms, Systems, and Applications
Spectrally Efficient Frequency Hopping System Design under Hostile Jamming
WASA '09 Proceedings of the 4th International Conference on Wireless Algorithms, Systems, and Applications
Message-driven frequency hopping: design and analysis
IEEE Transactions on Wireless Communications
Secure collision-free frequency hopping for OFDMA-based wireless networks
EURASIP Journal on Advances in Signal Processing - Special issue on dynamic spectrum access for wireless networking
Jamming mitigation techniques based on message-driven frequency hopping
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Spectrally efficient anti-jamming system design using message-driven frequency hopping
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Jamming mitigation based on coded message-driven frequency hopping
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
Noncoherent mMCSK-mMFSK modulation in Rayleigh fading channel
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
Wireless Personal Communications: An International Journal
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A wireless LAN standard developed by IEEE committee P802.11 operates in the unlicensed 2.4 GHz ISM band. This band is a very hostile environment due to many unpredictable interference sources, such as microwave ovens, utilizing the same frequency bands. At the same time the allowed signal power density that can be used is limited in order to minimize the interference to other users in the same band. In order to avoid these interference and keep a low signal power density the standard supports both direct sequence (DS) and frequency hopping (FH) modulation for these applications. The new test beds for multimedia wireless (WLANs) also use FH modulation. We analyze the performance of a modification of the FH multiple frequency shift keying (MFSK) system that includes a multitone multiamplitude MFSK signal, designated as amMFSK modulation. In this case, in order to meet the transmitted power density limits imposed in the ISM band, the signal energy is split into m separate tones. This makes the system more vulnerable to noise and fading, but still the overall flow of useful information will be increased. The results demonstrate that under the large range of the signal, channel and interference parameters this system offers better performance