Performance analysis of code-multiplexed transmitted-reference ultra-wideband systems

Date
2011
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Source Title
2011 IEEE International Conference on Ultra-Wideband (ICUWB)
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Publisher
IEEE
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Pages
111 - 115
Language
English
Type
Conference Paper
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Abstract

In code-multiplexed transmitted-reference (CM-TR) ultra-wideband (UWB) systems, data signals and reference signals are transmitted using two distinct orthogonal codes. In this way, performance improvements and/or implementation advantages are obtained compared to transmitted-reference (TR) and frequency-shifted reference (FSR) ultra-wideband (UWB) systems. In this study, performance of CM-TR systems is investigated, and probability of error expressions are obtained. For the single user case, a closed-form expression for the exact probability of error is derived, whereas a Gaussian approximation, the accuracy of which depends on the number of frames per symbol, is considered for the multiuser case. Also, the maximum likelihood detector is derived, and numerical examples are presented. © 2011 IEEE.

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Keywords
Ultra-wideband, Closed-form expression, Data signals, Frequency-shifted references, Gaussian approximations, impulse radio, Maximum likelihood detectors, Multi-user, Multiple access, Numerical example, Orthogonal code, Per-symbol, Performance analysis, Performance improvements, Probability of errors, Reference signals, Single users, Transmitted reference, Ultrawideband systems, Codes (symbols), Maximum likelihood, Multiple access interference, Multiplexing, Ultra-wideband (UWB), Broadband networks
Citation
Published Version (Please cite this version)