Low-Power Processor Design Methodology: High-Level Estimation and Optimization via Processor Description Language

Author(s):  
Zheng Wang ◽  
Anupam Chattopadhyay
Electronics ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 73
Author(s):  
Francesco Ratto ◽  
Tiziana Fanni ◽  
Luigi Raffo ◽  
Carlo Sau

With the diffusion of cyber-physical systems and internet of things, adaptivity and low power consumption became of primary importance in digital systems design. Reconfigurable heterogeneous platforms seem to be one of the most suitable choices to cope with such challenging context. However, their development and power optimization are not trivial, especially considering hardware acceleration components. On the one hand high level synthesis could simplify the design of such kind of systems, but on the other hand it can limit the positive effects of the adopted power saving techniques. In this work, the mutual impact of different high level synthesis tools and the application of the well known clock gating strategy in the development of reconfigurable accelerators is studied. The aim is to optimize a clock gating application according to the chosen high level synthesis engine and target technology (Application Specific Integrated Circuit (ASIC) or Field Programmable Gate Array (FPGA)). Different levels of application of clock gating are evaluated, including a novel multi level solution. Besides assessing the benefits and drawbacks of the clock gating application at different levels, hints for future design automation of low power reconfigurable accelerators through high level synthesis are also derived.


2014 ◽  
Vol 573 ◽  
pp. 176-180
Author(s):  
G. Kavitha ◽  
B. Kirthiga ◽  
N. Kirubanandasarathy

In this paper, an area-efficient low power fast fourier transform (FFT) processor is proposed for multi input multi output-orthogonal frequency division multiplexing (MIMO-OFDM) in wireless communication system. It consists of a modified architecture of radix-2 algorithm which is described as modified radix-2 multipath delay commutation (MOD-R2MDC). The OFDM receiver with modified R2MDC (MOD-R2MDC) FFT was designed by Hardware Description Language (HDL) coding The Xilinx ISE Design Suite 10.1 is used as a synthesis tool for getting the power and area. The Model-Sim 6.3c is used for simulation. Also the existing OFDM system has been tested with these FFT algorithms and their performances were analyzed with respect to occupancy area in FPGA and power consumption. A low-power and area efficient architecture enables the real-time operations of MIMO OFDM system.


2014 ◽  
Vol 26 (6) ◽  
pp. 639-649 ◽  
Author(s):  
Petter Stenmark ◽  
Johan Lilja

Purpose – The purpose of this paper is to introduce a methodology that can support the process of understanding and designing for the satisfaction of high-level needs in practice. The satisfaction of high-level needs has seldom been in focus when it comes to customer satisfaction surveys or the process of new product or service development. However, needs do occur on various levels, and the satisfaction of high-level needs actually appears to have the greatest potential for the creation of loyalty among customers and customer satisfaction. The satisfaction of high-level needs has furthermore been pointed out as a strategy for the creation of attractive quality. Design/methodology/approach – The paper is based on literature studies and the application of the Ideation Need Mapping (INM) methodology in a specific case. Findings – The paper presents the INM methodology that could be used for guiding product and service innovation in practice. More specifically, the methodology supports the process of understanding and designing for the satisfaction of high-level needs. Originality/value – This paper aims to contribute to envisioning and demonstrating how the understanding of, and design for, satisfaction of high-level needs can be done in practice.


2012 ◽  
Vol 59 (12) ◽  
pp. 952-956 ◽  
Author(s):  
Dongsuk Jeon ◽  
Mingoo Seok ◽  
Zhengya Zhang ◽  
David Blaauw ◽  
Dennis Sylvester

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Amanda Kennedy ◽  
Stacey M. Baxter ◽  
Alicia Kulczynski

Purpose This paper aims to examine the importance of celebrity brands in influencing consumer perceptions of celebrity authenticity, which drives positive consumer attitudes and intentions. In addition, the notion of low-celebrity investment is investigated as a factor that diminishes the positive outcomes associated with celebrity brands. Design/methodology/approach Study 1 examines the effect of brand situation (endorsement versus celebrity brand) on consumer attitudes and intentions. Studies 2 and 3 investigate the role of celebrity authenticity in explaining the effects observed in Study 1. Study 4 examines celebrity investment as a bound of the phenomenon. Findings Study 1 demonstrates that consumers report heightened attitudes and intentions towards celebrity brands when compared to endorsements. Studies 2 and 3 provide evidence that authenticity explains the effects observed in Study 1. Results of Study 4 show that when consumers are aware of low-celebrity investment, the celebrity is viewed as inauthentic regardless of brand situation. Research limitations/implications This research is limited as it focuses only on known celebrity endorsers who were matched with products that had a high level of fit. In addition, purchase intentions were measured as opposed to the study of actual purchase behaviour. Practical implications This research has important implications for the development of endorsements and celebrity brands by demonstrating that consumers view celebrities as authentic when they are involved with brands for reasons other than monetary compensation. Originality/value This research shows that consumers have heightened attitudes and intentions towards celebrity brands compared to endorsements. This research identifies celebrity authenticity as the process underlying the observed phenomenon. However, celebrity investment is identified as a boundary condition demonstrating that knowledge of low investment results in a celebrity being viewed as inauthentic.


2015 ◽  
Vol 21 (1) ◽  
pp. 51-62
Author(s):  
Maja Uran Maravić ◽  
Dejan Križaj ◽  
Miha Lesjak

The purpose – Slovenian tourism organisations must constantly focus on developing variety innovations for organisations. In this paper, we present a study conducted on innovation practices in Slovenian tourism organisations. Design/methodology – In a survey conducted on Slovenia tourism organisations, we obtained data and identified their innovation performance and the innovation climate in their area of business. There are three main hypothesis tested. Findings – The research sample of 41 organisations found that most innovation in tourism organisations came through the introduction of new services (90%), followed by innovation through new organisational methods (73%), and found a high-level climate for innovation. Worse was its assessment of research activity within organisations and cooperation with external institutions (eg. universities and research institutes) and investment in innovation activities within their research and development. Results obtained from the research showed a mean value for the innovation climate-instrument of 3.83 indicating a high innovation climate for the Slovenian tourism companies included in the sample survey. Mostly, (publicly known as) more innovative active organisations responded to our survey. From such results, we find that tourism organisations included in the survey are aware of the importance of innovation, teaching organisations to communicate well and network with other organisations, are adaptable to change and engaged with their own ideas in support of the organisation's management. Originality of the research – The contribution of the research is that it has applied the generic instrument for measuring innovation climate on tourism and the first time climate is measured in Slovenia.


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