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A low power, low complexity IR-UWB receiver in multipath environments and its implementation  

Lee, Soon-Woo (Korea Electrotechnology Research Institute (KERI))
Park, Young-Jin (Korea Electrotechnology Research Institute (KERI))
Kim, Kwan-Ho (Korea Electrotechnology Research Institute (KERI))
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.44, no.6, 2007 , pp. 24-30 More about this Journal
Abstract
In this paper, an energy detection-based low power, low complexity IR-UWB receiver in multipath impulse radio channel is presented. The proposed receiver has a simple 1-bit sampler for energy detection. Also, multipath signal received from multipath impulse radio channel is amplified and envelope of the signal is detected. Then, energy detection technique using integrator by summing multipath signals in certain period is adopted to minimize the BER loss by simple energy detection. In particular, in acquisition of a sample signal, SNR is additionally improved using a digital sampler. Symbol decision using several sampled signals is performed and thus the process of symbol synchronization is significantly simplified. Also, it is effectively designed to be compatible with influences of multipath and timing error. In addition, the proposed receiver complexity is reduced using pulse decision window. The performance of the proposed receiver is simulated based on IEEE 802.15.4a channel model and the algorithms are implemented on FPGA.
Keywords
IR-UWB; 1-bit sampler; pulse decision window; digital correlator; FPGA;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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