Special Issue "Innovative Technologies and Services for Smart Cities"

A special issue of Electronics (ISSN 2079-9292).

Deadline for manuscript submissions: 30 September 2017

Special Issue Editors

Guest Editor
Prof. Dr. Subhas Chandra Mukhopadhyay

Department of Engineering, Macquarie University, NSW 2109, Australia
Website | E-Mail
Phone: +61-2-9850-6510
Fax: +61-2-9850-9128
Interests: smart sensors; sensors modeling; sensor networks; wireless sensor networks; internet of things
Guest Editor
Dr. Tarikul Islam

Professor of Electrical Engineering Department, Faculty of Eng. & Technology, Jamia Millia Islamia (University), New Delhi-110025, India
Phone: 011-26981717-2355
Interests: sensors; sensor networks; interfacing electronics; wireless sensors; smart cities

Special Issue Information

Dear Colleagues,

Less budget, resource constraints, and continuous software upgrades are a few problems affecting the implementation of smart cities. The only solution to these problems is to develop smarter technology and a more efficient usage in order to meet the needs of smart cities. A combination of smart sensors, universal platform, Information and Communication Technologies (ICT), Internet of Things (IoT), energy harvesting, cloud computing, and open source technologies, compatible with Next Generation Networks (NGN), will help towards the actual achievement of a smart city. It is now possible to develop significant technology platforms and IoT solutions for smart cities without a massive investment. However, IoT interoperability is still at a very early stage and standardization is difficult to achieve as it is usually led by companies with strong market positions. There is a need for stand-alone development, where large companies will not dictate terms and conditions.

The aim of this Special Issue is to report on the design and development of smart sensors, a universal interfacing platform, along with the IoT framework, extending it to next generation networks (4G, 5G, and future networks) for monitoring parameters of interest with the goal of achieving smart cities. Examples of this work include developing novel sensors for monitoring environmental pollution and other parameters, and making the data available to a wider community through remote access cloud computing. The proposed universal interfacing platform with the IoT frame work will solve many challenging issues and it will significantly boost the growth of IoT-related applications, not just in the environmental monitoring domain, but in the other key areas, such as smart home, wearables, smart city with smart waste management, smart E-metering, smart water supply, intelligent traffic control, smart grid, remote health care applications, etc., in any country. The need is to develop a low-cost solution so that any country, without investing a massive amount of resources, can exploit the research outcomes.

Dr. Subhas Chandra Mukhopadhyay
Dr. Tarikul Islam
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Electronics is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 350 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.


  • Smart sensors
  • sensing technology
  • wireless sensor networks
  • Internet of Things
  • Smart Home
  • Assisted Living
  • Smart Cities
  • Environmental Monitoring
  • wireless protocol
  • IoT framework
  • Cloud computing

Published Papers (1 paper)

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Open AccessArticle Sensitivity Enhancement of a PPM Level Capacitive Moisture Sensor
Electronics 2017, 6(2), 41; doi:10.3390/electronics6020041
Received: 21 March 2017 / Revised: 15 May 2017 / Accepted: 16 May 2017 / Published: 20 May 2017
PDF Full-text (4916 KB) | HTML Full-text | XML Full-text
Measurement of moisture at ppm or ppb level is very difficult and the fabrication of such sensors at low cost is always challenging. High sensitivity is an important parameter for trace level (ppm) humidity sensors. Anelectronic detection circuit for interfacing the humidity sensor
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Measurement of moisture at ppm or ppb level is very difficult and the fabrication of such sensors at low cost is always challenging. High sensitivity is an important parameter for trace level (ppm) humidity sensors. Anelectronic detection circuit for interfacing the humidity sensor with high sensitivity requires a simple hardware circuit with few active devices. The recent trends for increasing the sensitivity include fabricating nanoporous film with a very large surface area. In the present work, the sensitivity of a parallel plate capacitive type sensor with metal oxide sensing film has been significantly improved with an aim to detect moisture from 3 to 100 ppm in the industrial process gases used to fabricate semiconductors and other sensitive electronic devices. The sensitivity has been increased by (i) fabricating a nanoporous film of aluminum oxide using the sol-gel method and (ii) increasing the cross-sectional area of a parallel plate capacitor. A novel double sided capacitive structure has been proposed where two capacitors have been fabricated—one on the top and one on the bottom side of a flat alumina substrate—and then the capacitors are connected in parallel. The structure has twice the sensitivity of a single sensor in the same ppm range but the size of the structure remains unchanged. The important characteristics of the sensors such as the sensitivity (S = Δ C Δ p p m × 100 ), the response time (tr), and the recovery time (tc) are determined and compared with a commercial SHAW, UKdew point meter. The fabricated double sided sensor has comparable sensitivity (S = 100%, tr (s) = 28, tc (s) = 40) with the commercial meter (S = 100.5%, tr (s) = 258) but has a faster response time. The proposed method of sensitivity enhancement is simple, and mass producible. Full article
(This article belongs to the Special Issue Innovative Technologies and Services for Smart Cities)

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