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ACM Transactions on Embedded Computing Systems (TECS), Volume 17 Issue 1, November 2017

Section: Special Issue on Autonomous Battery-Free Sensing and Communication

Guest Editorial for ACM TECS: Special Issue on Autonomous Battery-Free Sensing and Communication
Jiming Chen, Yu (Jason) Gu, Gil Zussman
Article No.: 2
DOI: 10.1145/3127494

Harvest Energy from the Water: A Self-Sustained Wireless Water Quality Sensing System
Qi Chen, Ye Liu, Guangchi Liu, Qing Yang, Xianming Shi, Hongwei Gao, Lu Su, Quanlong Li
Article No.: 3
DOI: 10.1145/3047646

Water quality data is incredibly important and valuable, but its acquisition is not always trivial. A promising solution is to distribute a wireless sensor network in water to measure and collect the data; however, a drawback exists in that the...

Efficient, Long-Term Logging of Rich Data Sensors Using Transient Sensor Nodes
Andres Gomez, Lukas Sigrist, Thomas Schalch, Luca Benini, Lothar Thiele
Article No.: 4
DOI: 10.1145/3047499

While energy harvesting is generally seen to be the key to power cyber-physical systems in a low-cost, long-term, efficient manner, it has generally required large energy storage devices to mitigate the effects of the source’s variability....

Transmission Adaptation for Battery-Free Relaying
Zejue Wang, Hongjia Li, Dan Hu, Song Ci
Article No.: 5
DOI: 10.1145/3055513

Energy harvesting (EH)–enabled relaying has attracted considerable attention as an effective way to prolong the operation time of energy-constrained networks and extend coverage beside desired survivability and rate of transmission. In...

A See-through-Wall System for Device-Free Human Motion Sensing Based on Battery-Free RFID
Zhongqin Wang, Fu Xiao, Ning Ye, Ruchuan Wang, Panlong Yang
Article No.: 6
DOI: 10.1145/3055515

A see-through-wall system can be used in life detection, military fields, elderly people surveillance. and gaming. The existing systems are mainly based on military devices, customized signals or pre-deployed sensors inside the room, which are...

OPPC: An Optimal Path Planning Charging Scheme Based on Schedulability Evaluation for WRSNs
Chi Lin, Yanhong Zhou, Houbing Song, Chang Wu Yu, Guowei Wu
Article No.: 7
DOI: 10.1145/3126684

The lack of schedulability evaluation of previous charging schemes in wireless rechargeable sensor networks (WRSNs) degrades the charging efficiency, leading to node exhaustion. We propose an Optimal Path Planning Charging scheme, namely OPPC, for...

Joint Optimization of Sensing and Power Allocation in Energy-Harvesting Cognitive Radio Networks
Hang Hu, Hang Zhang, Jianxin Guo, Feng Wang
Article No.: 8
DOI: 10.1145/3070709

The energy-harvesting cognitive radio (CR) network is proposed to improve the spectrum efficiency and energy efficiency. We focus on the optimization of sensing time and power allocation to maximize the throughput of the energy-harvesting CR...

R3: Reliable Over-the-Air Reprogramming on Computational RFIDs
Die Wu, Li Lu, Muhammad Jawad Hussain, Songfan Li, Mo Li, Fengli Zhang
Article No.: 9
DOI: 10.1145/3070720

Computational Radio Frequency Identification (CRFID) tags operate solely on harvested energy and have emerged as viable platforms for a variety of ubiquitous sensing and computation applications. Due to their battery-less nature, these tags can be...

Near-Optimal Co-Deployment of Chargers and Sink Stations in Rechargeable Sensor Networks
Songyuan Li, Lingkun Fu, Shibo He, Youxian Sun
Article No.: 10
DOI: 10.1145/3070721

Wireless charging technology has drawn great attention of both academia and industry in recent years, due to its potential of significantly improving the system performance of sensor networks. The emergence of an open-source experimental platform...

Operating Energy-Neutral Real-Time Systems
Peter Wägemann, Tobias Distler, Heiko Janker, Phillip Raffeck, Volkmar Sieh, Wolfgang SchröDer-Preikschat
Article No.: 11
DOI: 10.1145/3078631

Energy-neutral real-time systems harvest the entire energy they use from their environment. In such systems, energy must be treated as an equally important resource as time, which creates the need to solve a number of problems that so far have not...

Predictive Retransmissions for Intermittently Connected Sensor Networks with Transmission Diversity
MD. Majharul Islam Rajib, Asis Nasipuri
Article No.: 12
DOI: 10.1145/3092947

Batteryless wireless sensor networks that rely on energy harvested from the environment often exhibit random power outages due to limitations of energy resources, which give rise to intermittent connectivity and long transmission delays. To...

Green-Energy-Powered Cognitive Radio Networks: Joint Time and Power Allocation
Chi Xu, Wei Liang, Haibin Yu
Article No.: 13
DOI: 10.1145/3092949

This article studies a green-energy-powered cognitive radio network (GCRN) in an underlay paradigm, wherein multiple battery-free secondary users (SUs) capture both the spectrum and the energy of primary users (PUs) to communicate with an access...

Section: Special Issue on ESWEEK 2016

CaffePresso: Accelerating Convolutional Networks on Embedded SoCs
Gopalakrishna Hegde, Siddhartha, Nachiket Kapre
Article No.: 15
DOI: 10.1145/3105925

Auto-tuning and parametric implementation of deep learning kernels allow off-the-shelf accelerator-based embedded platforms to deliver high-performance and energy-efficient mappings of the inference phase of lightweight neural networks....

LOCUS: Low-Power Customizable Many-Core Architecture for Wearables
Cheng Tan, Aditi Kulkarni, Vanchinathan Venkataramani, Manupa Karunaratne, Tulika Mitra, Li-Shiuan Peh
Article No.: 16
DOI: 10.1145/3122786

Application requirements, such as real-time response, are pushing wearable devices to leverage more powerful processors inside the SoC (system on chip). However, existing wearable devices are not well suited for such challenging applications due...

Improving Write Performance and Extending Endurance of Object-Based NAND Flash Devices
Jie Guo, Chuhan Min, Tao Cai, Yiran Chen
Article No.: 18
DOI: 10.1145/3105924

Write amplification is a major cause of performance and endurance degradations in NAND flash-based storage systems. In an object-based NAND flash device (ONFD), two causes of write amplification are onode partial update and cascading update. Here,...