Poster Abstract: Concatenated Random Parity Forwarding in Wireless Sensor Networks

In this paper, we address the problem of extending the lifetime of sensor nodes, in particular those that are located close to the base station, using a new parity forwarding technique. The parity-forwarding refers to a relaying strategy in which a relay node sends a parity of the decoded codeword to facilitate transmission by other nodes. In this scheme, the relay completely decodes the transmitted codeword but only forwards a parity symbol to the destination, which reduces the encoding complexity and bandwidth/power expenditures at the relay. It is shown that this strategy achieves the capacity of a new class of single source, single destination, degraded two- relay networks by Razaghi, P. and Yu, W. (2006).