ISSN : 1796-2056
Volume : 3    Issue : 6    Date : June 2008

MAC Protocols for GSP in Wireless Sensor Networks
Maria Calle and Joseph Kabara
Page(s): 29-35
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The Gossip-based Sleep Protocol (GSP) is a routing protocol designed to save energy in Wireless
Sensor Networks. This work presents two MAC protocols designed to complement the
characteristics of GSP: MACGSP1 and MACGSP2 were evaluated in combination with GSP on
square grids of 100, 400 and 900 simulated nodes. Both protocols show increased energy savings
compared to GSP by itself. MACGSP1 provided the greatest energy savings, however MACGSP2
exhibited the best trade off between overhead, delay and packet reception probability. MACGSP2
reduces the duplicate packets generated by GSP, with no significant difference in end-to end delay
and a reduced GSP packet reception probability of 10%.

Index Terms
Wireless Sensor Networks, Routing, MAC, Gossip, Overhead