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Performance of Ultra-Wideband Transmission with Pulse Position Amplitude Modulation and RAKE Reception

Wei Li, T. Aaron Gulliver, Hao Zhang

Open publisher page 4 citations

Abstract

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 higher system capacity with low computational complexity. A rake receiver can make use of the rich multipath of UWB systems to improve system performance and capacity. In this paper we present the performance of a rake receiver employing maximal ratio combining (MRC) in a time hopping (TH) UWB system with PPAM modulation. Performance in a practical multipath fading channel is considered. The error probability and a union bound on performance are derived for a block fading environment Numerical results are given to illustrate the system performance.

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What this paper is about

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 higher system capacity with low computational complexity. A rake receiver can make use of the rich multipath of UWB systems to improve system performance and capacity. In this paper we present the performance of a rake receiver employing maximal ratio combining (MRC) in a time hopping (TH) UWB system with PPAM modulation. Performance in a practical multipath fading channel is considered. The error probability and a union bound on performance are derived for a block fading environment Numerical results are given to illustrate the system performance.

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Available abstract

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 higher system capacity with low computational complexity. A rake receiver can make use of the rich multipath of UWB systems to improve system performance and capacity. In this paper we present the performance of a rake receiver employing maximal ratio combining (MRC) in a time hopping (TH) UWB system with PPAM modulation. Performance in a practical multipath fading channel is considered. The error probability and a union bound on performance are derived for a block fading environment Numerical results are given to illustrate the system performance.

Key concepts: Pulse-position modulation, Rake receiver, Pulse-amplitude modulation, Multipath propagation, Computer science, Electronic engineering, Time-hopping, Fading

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