A Network Coding Approach for Multi-Hop Nanonetworks in Molecular Communication

This paper proposes a network coding method for multi-hop nanonetworks including two nanomachines that communicate using nanorelays placed inbetween. In the proposed method, each nanorelay decodes the XOR of the symbols coming from its neighbors and conveys this XORed message to its neighbors. Using this network coding procedure, decoding equations are derived and a decoding rule is obtained. Thanks to network coding, the time required to convey a symbol from source to destination is halved compared to the standard decode and forward method and subsequently, the probability of error of the network is significantly decreased.