The Journal of Advanced Navigation Technology
Syntheses and realization of Quaternary Galois Field Sum-Of-Product(QGFSOP) expressed 1-variable functions by Permutational Literals
Dong-Young Park, Baek-Ki Kim, Hyeon-Kyeong Seong
Abstract
Even though there are 256 possible 1-qudit(1-variable quantum digit) functions in quaternary logic, the most useful functions are 4!=24 ones capable of representing in QGFSOP expressions by possible permuting of 0,1,2, and 3. In this paper, we propose a permutational literal(PL) representation and a QPL(Quaternary PL) gate which use the operands of a multiplicand A and an augend D in +D(GF4) operation as a control variable of multi-cascaded PLs. And we also present new PL synthesis algorithms to synthesize QGFSOP expressed 24 (1-qudit) functions by applying three PL operators as ab(mutual permutation), + D(addition), and XA (multiplication). Finally architectures, circuits, and a CMOS implementation to realize proposed PL synthesis algorithms for +D(GF4) functions are presented.