Time Hopping
5 Followers
Recent papers in Time Hopping
Spread-spectrum modulation techniques have been adopted for many current and future military communication systems to accommodate high data rates with high link integrity, even in the presence of significant multipath effects and... more
This paper presents a novel authentication and encryption method for an RFID system. In this paper, DES (Data Encryption Standard), algorithm will be used to encrypt and verify accuracy data within an RFID tag. The new DES algorithm use... more
We present an efficient, low-cost implementation of time-ho pping impulse radio that fulfills the spectral mask mandated by the FCC and is suitable for high-data-rate, short-range communications. Key features are: (i) all- baseband... more
Recently, pulse position amplitude modulation (PPAM) has been proposed for ultra-wideband (UWB) communication systems. PPAM combines pulse position modulation (PPM) and pulse amplitude modulation (PAM) to provide better performance and... more
HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. The documents may come from teaching and research institutions in France or abroad,... more
Ultra-wideband (UWB) communication has been the subject of extensive research due to its unique capabilities and potential applications. Some see UWB as an enabling technology for new wireless applications that span from high-data-rate... more
In this paper a joint symbol, frame and chip synchronization method for an ultra-wideband (UWB) system is presented. We assume that the channel is estimated using pilot wave- form assisted modulation (PWAM), and that synchronization is... more