Preamble sense multiple access (PSMA) for impulse radio ultra wideband sensor networks

Authors:
Jussi Haapola;Leonardo Goratti;Isameldin Suliman;Alberto Rabbachin
Affiliations:
Centre for Wireless Coomunications (CWC), University of Oulu, Oulu, Finland;Centre for Wireless Coomunications (CWC), University of Oulu, Oulu, Finland;Centre for Wireless Coomunications (CWC), University of Oulu, Oulu, Finland;Centre for Wireless Coomunications (CWC), University of Oulu, Oulu, Finland
Venue:
SAMOS'06 Proceedings of the 6th international conference on Embedded Computer Systems: architectures, Modeling, and Simulation
Year:
2006

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Abstract

In this paper we propose preamble sense multiple access (PSMA), a random access MAC protocol capable of clear channel assessment in impulse radio-ultra wideband environment. Full compatibility with IEEE 802.15.4a contention access period is the key design criteria of PSMA, and the goal is to provide an alternative approach to the 802.15.4a envisioned slotted ALOHA and periodic preamble segment transmission schemes. The evaluation of PSMA consists of a traditional throughput analysis as well as energy consumption and delay analysis that takes into account the special features of impulse radio ultra wideband approach. From the analysis we can claim that PSMA has a very good energy and delay performance in addition to satisfactory throughput when the offered traffic to the channel is from low to moderate.