%C Poznan, Poland %T Retrieval accuracy of very large DNA-Based databases of digital signals %J 2007 European Signal Processing Conference (EUSIPCO-2007), Pozna\'n, Polland, September 3-7, 200 %X In this paper a simulation of single query searches in very large DNA-based databases that are capable of storing and retrieving digital signals is presented. Similarly to the digital domain, a signal-to-noise ratio (SNR) measure to assess the performance of theDNA-based retrieval scheme in terms of database size and source statistics is defined. With approximations, it is shown that the SNR of any finite sizeDNA-based database is upper bounded by the SNR of an infinitely large one with the same source distribution. Computer simulations are presented to validate the theoretical outcomes. %P 1561-1567 %A Sotirios A. Tsaftaris %A Aggelos K. Katsaggelos %L eprints815 %D 2007