Analysis of Uncoordinated Opportunistic Two-Hop Wireless Ad Hoc Systems

Details Analysis of Uncoordinated Opportunistic Two-Hop Wireless Ad Hoc Systems Analysis of Uncoordinated Opportunistic Two-Hop Wireless Ad Hoc Systems

2009-01-15

arxiv.org/abs/0901.2160v1

Computer Science

Information Theory

Scientific paper

We consider a time-slotted two-hop wireless system in which the sources transmit to the relays in the even time slots (first hop) and the relays forward the packets to the destinations in the odd time slots (second hop). Each source may connect to multiple relays in the first hop. In the presence of interference and without tight coordination of the relays, it is not clear which relays should transmit the packet. We propose four decentralized methods of relay selection, some based on location information and others based on the received signal strength (RSS). We provide a complete analytical characterization of these methods using tools from stochastic geometry. We use simulation results to compare these methods in terms of end-to-end success probability.

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