D-STAR MAC Protocol: A Cross Layer Solution for Wireless Sensor Networks Endowed with Directive Antennas

Authors:
Francesco Chiti;Michele Ciabatti;Giovanni Collodi;Davide Di Palma;Romano Fantacci;Gianfranco Manes;Antonio Manes;Ilaria Nelli
Affiliations:
Department of Electronics and Telecommunications, University of Florence, Firenze, Italy 50139;Department of Electronics and Telecommunications, University of Florence, Firenze, Italy 50139;Department of Electronics and Telecommunications, University of Florence, Firenze, Italy 50139;Department of Electronics and Telecommunications, University of Florence, Firenze, Italy 50139;Department of Electronics and Telecommunications, University of Florence, Firenze, Italy 50139;Department of Electronics and Telecommunications, University of Florence, Firenze, Italy 50139;Department of Electronics and Telecommunications, University of Florence, Firenze, Italy 50139;Department of Electronics and Telecommunications, University of Florence, Firenze, Italy 50139
Venue:
Wireless Personal Communications: An International Journal
Year:
2008

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Abstract

This paper deals with a novel MAC layer protocol, namely Directive synchronous transmission asynchronous reception (D-STAR), which is able to logically synchronize a Wireless sensor network (WSN). In this case both sleep and active states together with integrating directional antennas within the communications framework can be managed, according to a cross-layer design. D-STAR protocol has been characterized in terms of functional characteristics and the overall performance is presented in terms of network lifetime gain, set-up latency and collision probability. A remarkable gain is shown with respect to the basic approach endowed with omnidirectional antennas without increasing the signaling overhead nor affecting the set up latency, but achieving energy consumption reduction.