Detection of Impulse Radio Ultra-Wideband Signals using Recursive Transmitted Reference Receivers

For the detection of impulse radio (IR) UWB signals, complex RAKE receiver or low-complexity transmitted reference (TR) autocorrelation receivers can be used. However, there is a performance loss associated with the low-complexity TR scheme. This paper proposes recursive structures of the convention...

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Bibliographic Details
Main Authors: Khan, Muhammad Gufran, Nordberg, Jorgen, Claesson, Ingvar
Format: Conference Proceeding
Language:English
Subjects:
Autocorrelation
Bit rate
Correlators
Fading
Infrared detectors
Multipath channels
Performance loss
RAKE receivers
Signal processing
Ultra wideband technology
Online Access:Request full text
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Summary:For the detection of impulse radio (IR) UWB signals, complex RAKE receiver or low-complexity transmitted reference (TR) autocorrelation receivers can be used. However, there is a performance loss associated with the low-complexity TR scheme. This paper proposes recursive structures of the conventional TR and averaged TR schemes to improve the detection performance of IR-UWB signals. The performance of proposed schemes is evaluated over the standard IEEE 802.15.4a multipath channels. The performance is compared with conventional TR receivers in terms of uncoded bit-error-rate (BER), assuming that the channel is quasi-static. For averaged and recursive averaged TR schemes, the TR sequence is also slightly modified. The simulation results validate that the proposed schemes has better performance by about 2 dB than the conventional TR and averaged TR receivers.
ISSN:2162-6588
DOI:10.1109/ICUWB.2007.4380973