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Study on signal processing techniques for low power and low complexity IR-UWB communication system using high speed digital sampler  

Lee, Soon-Woo (Korea Electrotechnology Research Institute)
Park, Young-Jin (Korea Electrotechnology Research Institute)
Kim, Kwan-Ho (Korea Electrotechnology Research Institute)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.43, no.12, 2006 , pp. 9-15 More about this Journal
Abstract
In this paper, signal processing techniques for noncoherent impulse-radio-based UWB (IR-UWB) communication system are proposed to provide system implementation of low power consumption and low complexity. The proposed system adopts a simple modulation technique of OOK (on-oft-keying) and noncoherent signal detection based on signal amplitude. In particular, a technique of a novel high speed digital sampler using a stable, lower reference clock is developed to detect nano-second pulses and recover digital signals from the pulses. Also, a 32 bits Turyn code for data frame synchronization and a convolution code as FEC are applied, respectively. To verify the proposed signal processing techniques for low power, low complexity noncoherent IR-UWB system, the proposed signal processing technique is implemented in FPGA and then a short-range communication system for wireless transmission of high quality MP3 data is designed and tested.
Keywords
UWB; Impulse-radio-based UWB; IR-UWB; Turyn code; high speed digital sampler;
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