Journal
IEEE TRANSACTIONS ON NANOBIOSCIENCE
Volume 14, Issue 6, Pages 617-624Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TNB.2015.2438257
Keywords
Arithmetic operation; biocomputing; membrane computing; spiking neural P system; time-freeness
Funding
- National Natural Science Foundation of China [61472333, 61370010, 51405408, 71103154]
- Natural Science Foundation of Fujian Province of China [2011J01334, 2014J01253]
- Ph.D. Programs Foundation of Ministry of Education of China [20120121120039]
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Spiking neural P systems (SN P systems) are a class of distributed parallel computing devices inspired from the way neurons communicate by means of spikes. In most applications of SN P systems, synchronization plays a key role which means the execution of a rule is completed in exactly one time unit (one step). However, such synchronization does not coincide with the biological fact: in biological nervous systems, the execution times of spiking rules cannot be known exactly. Therefore, a realistic system called time-free SN P systems were proposed, where the precise execution time of rules is removed. In this paper, we consider building arithmetical operation systems based on time-free SN P systems. Specifically, adder, subtracter, multiplier, and divider are constructed by using time-free SN P systems. The obtained systems always produce the same computation result independently from the execution time of the rules.
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