Abstract
We consider differential-pulse position modulation (DPPM) in an ultra wideband (UWB) communication system. A typical format for a DPPM signal in a UWB system is derived from that of a pulse position modulation (PPM) signal. The error probabilities of a UWB DPPM system with receive diversity over additive white Gaussian noise (AWGN) and Nakagami fading channels are derived. Both single-user and multiuser environments are considered. Performance results are presented which show that the frame error rate (FER) with DPPM is better than that with PPM, and the FER performance can be improved significantly by receive diversity.
Highlights
pulse position modulation (PPM) has been used extensively in optical communication systems and is the modulation employed in the IEEE 802.11 infrared physical layer standard [1]
It was shown that the packet error rate (PER) of differential-pulse position modulation (DPPM) for a given average received irradiance was superior to that with on-off keying (OOK), but PPM was better than DPPM
This paper examines DPPM for use in ultra wideband (UWB) systems
Summary
PPM has been used extensively in optical communication systems and is the modulation employed in the IEEE 802.11 infrared physical layer standard [1]. DPPM provides a higher transmission capacity by deleting redundant slots in a symbol It does not require symbol synchronization since each symbol ends with a “1” pulse. DPPM was shown in [7] to require significantly less average power than PPM. This paper examines DPPM for use in UWB systems. The typical format of a DPPM signal in a UWB system is derived, and the error probabilities over AWGN and Nakagami fading channels are derived. Both single-user and multiuser environments are considered.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
