Figure 2 - uploaded by Soheil Salehi
Content may be subject to copyright.
Source publication
![Figure 1: Moore's Law [10].](profile/Soheil-Salehi-2/publication/340681780/figure/fig1/AS:881060493672450@1587072599231/Moores-Law-10_Q320.jpg)
The continuous increase in transistor density based on Moore’s Law has led us to highly scaled Complementary Metal-Oxide Semiconductor (CMOS) technologies. These transistor-based process technologies offer improved density as well as a reduction in nominal supply voltage. An analysis regarding different aspects of 45nm and 15nm technologies, such a...
Citations
... Thus, cornerstone to achieving high-accuracy and efficient CS is utilization of an adaptive measurement matrix that changes according to the signal characteristics that are extracted from the observations of the signal components in the previous time frames. 1 ©IEEE. Part of this chapter is reprinted, with permission, from [1,2,3,4,5,6,8,9,10,12,13,22] On the hardware side, Von-Neumann architectures have been facing challenges such as increased static energy consumption, large access latencies, and, limited scalability. Recently, researchers have focused on in-memory computing paradigms by utilizing non-volatile spin-based devices to realize non-Von-Neumann architectures. ...
... FM layers could be aligned in two different magnetization configurations, Parallel (P) and Anti-Parallel (AP). Accordingly, the MTJ exhibits a low resistance (R P ) or high resistance (R AP ), respectively [1,22]. ...
... ©IEEE. Part of this chapter is reprinted, with permission, from[1,2,3,4,5,6,8,9,10,12,13,22] ...
New approaches are sought to maximize the signal sensing and reconstruction performance of Internet-of-Things (IoT) devices while reducing their dynamic and leakage energy consumption. Recently, Compressive Sensing (CS) has been proposed as a technique aimed at reducing the number of samples taken per frame to decrease energy, storage, and data transmission overheads. CS can be used to sample spectrally-sparse wide-band signals close to the information rate rather than the Nyquist rate, which can alleviate the high cost of hardware performing sampling in low-duty IoT applications. In my dissertation, I am focusing mainly on the adaptive signal acquisition and conversion circuits utilizing spin-based devices to achieve a highly-favorable range of accuracy, bandwidth, miniaturization, and energy trade-offs while co-designing the CS algorithms. The use of such approaches specifically targets new classes of Analog to Digital Converter (ADC) designs providing Sampling Rate (SR) and Quantization Resolution (QR) adapted during the acquisition by a cross-layer strategy considering both signal and hardware-specific constraints. Extending CS and Non-uniform CS (NCS) methods using emerging devices is highly desirable. Among promising devices, the 2014 ITRS Magnetism Roadmap identifies nanomagnetic devices as capable post-CMOS candidates, of which Magnetic Tunnel Junctions (MTJs) are reaching broader commercialization. Thus, my doctoral research topic is well-motivated by the established aims of academia and industry. Furthermore, the benefits of alternatives to von-Neumann architectures are sought for emerging applications such as IoT and hardware-aware intelligent edge devices, as well as the application of spintronics for neuromorphic processing. Thus, in my doctoral research, I have also focused on realizing post-fabrication adaptation, which is ubiquitous in post-Moore approaches, as well as mission-critical, IoT, and neuromorphic applications.
