Research Article
Performance Evaluation of IEEE 802.15.4-2011 IR-UWB System with Enhanced Modulation Scheme
@INPROCEEDINGS{10.4108/eai.28-9-2015.2261507, author={Matti H\aa{}m\aa{}l\aa{}inen and Tuomas Paso and Ville Niemel\aa{} and Jussi Haapola and Jari Iinatti}, title={Performance Evaluation of IEEE 802.15.4-2011 IR-UWB System with Enhanced Modulation Scheme}, proceedings={The Fourth Ultra Wideband for Body Area Networking Workshop}, publisher={ACM}, proceedings_a={UWBAN}, year={2015}, month={12}, keywords={energy detector ieee std 802154-2011 ieee std 802156-2012 hospital radio channel model modulation rake receivers slotted-aloha ultra wideband}, doi={10.4108/eai.28-9-2015.2261507} }- Matti Hämäläinen
Tuomas Paso
Ville Niemelä
Jussi Haapola
Jari Iinatti
Year: 2015
Performance Evaluation of IEEE 802.15.4-2011 IR-UWB System with Enhanced Modulation Scheme
UWBAN
ICST
DOI: 10.4108/eai.28-9-2015.2261507
Abstract
In this paper, we propose and analyze an enhanced modulation scheme for impulse radio ultra wideband (IR-UWB) communications based on the IEEE Std. 802.15.4-2011. Currently, the pulse position modulation as utilized in the standard wastes 50% of the possible transmission time, but with suitable enhancement it can be taken into effective use. The advantages of the proposed improvement include data rate increase and enhanced resilience against multi-user interference and poor channel conditions. We provide IR-UWB receivers’ performance evaluations and comparisons by simulations in a real measured and modelled body-to-external channel model with different modulations. In addition, we provide analytical system level results of the IEEE Std. 802.15.4-2011 based communication system. We demonstrate on a network level how the proper selection of the IR-UWB modulation can increase the successful traffic volume up to 74%. All this is performed with backward compatibility to the aforementioned standard and, moreover, it can be utilized in the IEEE Std. 802.15.6-2012 IR-UWB communications, too.