generic parity generators design using ltex methodology: a quantum-dot cellular automata based approach

Quantum-dot cellular automata (qca) is a prominent paradigm that is considered to continue its dominance in thecomputation at deep sub-micron regime in nanotechnology. the qca realizations of fiveinput majority voter based multilevel parity generator circuits have been introduced in recent years. however, no attention has been paid towards the qca instantiation of the generic (n-bit) even and odd parity generator. in this paper, a comprehensive qca based methodology, termed as ltex methodology is proposed to produce nbit even and odd parity generators. the two-input layered t exclusive or (ltex) module is used to implement high fanin parity generators. the corollaries first formulate the qca design metrics such as o-cost, costα, and irreversible power dissipation and then exploit the operability of the ltex module to instantiate the efficient nbit parity generators. these parity generators can exclusively be used in error detection and correction schemes.