Chemical Relaying Protocols
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some media access control (MAC)-layer automatic repeat query (ARQ) mechanisms;
at the same time, in case of dense scenarios, broadcast messages can present savings
in terms of overhead).
In a real implementation, three additional factors have to be carefully
considered:
■ As described in the previous section, interests are maintained by each node
as a list of multisets. Let us assume that interests are characterized by the
tag int and are maintained as active messages. Periodically, one reaction is
triggered, which activates one of such active messages, broadcasting a query
corresponding to one of the elements of the multiset. The probability that
a query of type Cx is generated equals the corresponding fraction of such ...