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Equi-Noise: A Statistical Model That Combines Embedded Memory Failures and Channel Noise

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4 Author(s)
Khairy, M.S. ; Electr. Eng. & Comput. Sci. Dept., Univ. of California Irvine, Irvine, CA, USA ; Khajeh, A. ; Eltawil, A.M. ; Kurdahi, F.J.

This paper exploits the predominance of embedded memories in current and emerging wireless transceivers as a means to save power via channel state aware voltage scaling. The paper presents a statistical model that captures errors in embedded memories due to voltage over-scaling and maps the errors to a Gaussian distribution that represents a combination of communication channel noise and hardware noise. Designers can use the proposed model to investigate different power management policies, that capture the performance of the system as a function of both channel and hardware dynamics, thus creating a much richer design space of power, performance and reliability. A case study of a DVB receiver is presented and the validity of the proposed model is confirmed by simulations.

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Circuits and Systems I: Regular Papers, IEEE Transactions on  (Volume:61 ,  Issue: 2 )