High-speed and low-power LFSR by wave-pipelining

A mobile computer generally uses a lot of LFSRs (Linear Feedback Shift Registers). This causes the increase of power consumption. For this issue, we describe in this paper wave-pipelined LFSR that is able to be operated at high speed with low power consumption. A gate-level simulation clearly shows that the wave-pipelined LFSR is more superior to conventional LFSR in view of operation speed and power consumption. Finally we point out the prospective application of wave-pipelined LFSR to RNG (Random Number Generator). Since this works at variable clock frequency, it implements a new scheme for random numbers generation.