Energy-efficient network memory for ubiquitous devices

Santis²,

2013 5th International Conference on Intelligent Networking and Collaborative Systems

et al. 2013

Despite the wide deployment of beyond 3G cellular networks and high capacity Wi-Fi coverage infrastructures, finding the best way for achieving ubiquitous and secure mobile data transfer services in everyday's life activities, it is still an open question. In particular, security becomes a key factor in such a scenario, since a large number of mobile terminal devices (smartphones, handhelds, tablets) simultaneously supporting multiple networking technologies, may be used to store, access, manipulate, or communicate sensitive data from everywhere and at any time. However, the computational efforts required for achieving security, due to the inherent complexity of cryptographic algorithms, heavily affect the power consumption of the involved terminals. Such energy demand, together with the amount of power already required to manage the communication activities carried out by using multiple network interfaces, make energy efficient secure communication among mobile hardware-constrained handheld devices, a really challenging topic.Based on above considerations, we present the architecture of a framework which enables secure end-to-end and reliable data transfer for heterogeneous mobile terminals by also describing and modeling its power demand, with the aim of achieving a robust and reliable ubiquitous data transfer service also minimizing the overall battery consumption in such devices.

Section: B Transmission-layer Energy Consumptionmentioning

confidence: 99%

An Energy-Aware Framework for Reliable and Secure End-to-End Ubiquitous Data Communications

Santis²,

2013 5th International Conference on Intelligent Networking and Collaborative Systems

et al. 2013

2009 IEEE International Conference on Computer Design

“…Table I contains power consumption numbers that we use as parameters in our power savings estimate. These parameters are primarily compiled from a number of publications including research papers [9], [16], [17], DRAM device vendors' data sheets [18], [19], [20] and low-power system design guides [4]. In our estimate of power saving benefits, we do not consider power consumption reduction in FSB, IO interconnect and LCD panel backlight when the display is in idle modes.…”

Section: B Quantitative Evaluationmentioning

confidence: 99%

Using checksum to reduce power consumption of display systems for low-motion content

Han

Fang

Diefenbaugh

et al. 2009

Abstract-Power consumption of the display subsytem has been a relatively less explored area compared to other components of a mobile device including computing, storage, and networking units, although the former often constitutes one of the most power-hungry portions of the system. Typical applications on a mobile device such as web browsing and text editing tend to have rather static image content; each frame hardly changes from the previous one. Efficiently detecting and handling no-motion scenarios is thus critical to extend the battery life. This paper focuses on image change detection.We propose to use checksum to detect image changes. Specifically, CRC hardware is used to optimize the power consumption of 1) refresh of a local display and 2) data compression for wireless remote display. Compared with a traditional, pixel-bypixel comparison approach, using checksum for image change detection is not only fast, but also reduces accesses to the frame buffer, resulting in significant power savings. We have built a FPGA prototype to verify that CRC can capture image changes well enough to ensure a "visually lossless" quality.

Fourth IEEE International Symposium on Network Computing and Applications

“…Data on energy dissipation in some of the commercial processors and network links are reported by Fryman et al [11] and similar information but at the level of instruction execution can be found in some of the documents related to Instruction Level Power Analysis [24]. Although our intuition is based on the conventional wisdom "compute more and communicate less", very recently this wisdom has been challenged by some researchers, mostly arguing in the line that architectural features in modern processors hinder the power savings expected from the reduction in communication [11,4]. For example, Barr and Asanovic [4] show that compressing files before releasing it onto the wireless, may end up increasing the energy needs, due to various factors such as the DRAM to cache ratio, cache miss rates and so on.…”

Section: Related Workmentioning

confidence: 99%

LAWN: A Protocol for Remote Authentication overWireless Networks

Paul

Kumar

Ramachandran

2005

Remote authentication over a long range wireless network using large signature keys such as biometric samples (fingerprint, retinal scans etc.) is soon going to become an integral feature of various kinds of transactions. In the domain of mobile and ad hoc networking, this will become even more relevant due to the intrinsic dynamism in the applications. Because of the large size of the authentication keys, and continual need for authentication, considerable power and bandwidth are consumed by such a process. Authentication being only a background process supporting other transactions, should not take away too much of resources, especially bandwidth and power that are quite critical for small mobile devices.We present LAWN, a light-weight authentication protocol for wireless networks that trades computation for communication and can be tuned for any desired security guarantee. For an authentication token of length n, LAWN prepares a small sketch of length O(log n) (adding very low computational overhead), and transmits the sketch over the network. Under a reasonable energy consumption model, we show that this technique results in 70% to 80% saving in power for long-range wireless applications.