Andersson, BjörnPereira, NunoTovar, EduardoPacheco, Filipe2014-02-142014-02-142010978-1-4244-5717-5978-1-4244-5715-1http://hdl.handle.net/10400.22/3913Database query languages on relations (for example SQL) make it possible to join two relations. This operation is very common in desktop/server database systems but unfortunately query processing systems in networked embedded computer systems currently do not support this operation; specifically, the query processing systems TAG, TinyDB, Cougar do not support this. We show how a prioritized medium access control (MAC) protocol can be used to efficiently execute the database operation join for networked embedded computer systems where all computer nodes are in a single broadcast domain.engjournal article10.1109/WISES.2010.5548431