Every second atleast N persons are in conversation by some means. What makes the conversation interesting to us is that N is large and these persons are not physically close by.
Want to know more about what we do?
Do visit Dept. of ECE, IISc on
OPEN DAY - 4th March 2017
Once you have a signal, we will be somewhere close.
Want to know more about what we do?
Do visit Dept. of ECE, IISc on
OPEN DAY - 4th March 2017
You want to talk to a friend sitting afar. We try to understand the math behind it and engineer an efficient solution.
Want to know more about what we do?
Do visit Dept. of ECE, IISc on
OPEN DAY - 4th March 2017
Dept. of Electrical Communication Engineering, IIScTweets by @ecedeptiisc
Vision Statement: Excellence in Theoretical and Experimental Research in Communications, Signal Processing,
Microelectronics and RF/Photonics.
The ECE Department is recognized by UGC as a Center for Advanced Studies and has a rich heritage and a strong
reputation for R and D activities of internationally acclaimed standards.
To know more Click here.
To make you aware of what we do.
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Talks by eminent faculty of ECE
Student's Panel Discussion on how to get into ECE. A brief overview of ME and research programs in ECE will be discussed by the students. By the students, and for the students: Research Scholars, Dept. ECE, Indian Institute of Science.
OpenShoe is an academic project for creating an open source embedded Foot mounted INS (Inertial Navigation System)
implementation for indoor positioning. The Indoor Positioning of people and objects is an important area which finds
its applications in many scenarios such as aiding Fire-fighters / Security personnel in a building, location of elderly
in care-centers, etcetera. The Shoe consists of an embedded Inertial Measurement Unit (IMU) which is used for the
positioning activity employing the inertial navigation techniques. The IMU consists of a 3-axes accelerometer and
3-axes gyroscope which together span the six degrees of freedom required for the positioning activity.
Sophisticated Signal processing algorithms, based on the Kalman Filter, are used to obtain the position of the person
wearing the shoe. Further, this system uses an ad-hoc network and does not depend on the existing architecture of the
location. This makes sure that the system can be deployed and used anywhere.
This is a joint activity between Indian Institute of Science (IISc) and KTH Royal Institute of Technology, Stockholm, Sweden.
Lab involved: Statistical Signal Processing Lab, Department of ECE, Indian Institute of Science.
How do file compression schemes work? How does one remove the effects of noise in mobile communication? Information theory attempts to answer these questions and more. We will demonstrate some basic principles involved using simple experiments and puzzles. Join us at the Dept of ECE to know more!
ERNET – IISc PoP located at the ECE Department of Indian Institute of Science categorized as an ‘A’ PoP plays a vital role in providing network connectivity and services to the Educational and Research community in and around Bangalore. ERNET was initiated in 1986 by the Department of Electronics (DoE), with funding support from the Government of India and United Nations Development Program (UNDP) and was registered as an autonomous scientific society in 1998. ERNET India has 15 Points of Presence (PoPs) at premiere educational and research institutions spread across the country which help it to serve and respond rapidly to the 1300 institutions in the country. Join us at the Dept of ECE to know more!
This project proposes to develop an open, integrated and extensible IoT technology stack for Smart Management of Campus Utilities. The IoT stack brings together hybrid sensing, diverse networking, Big Data Analytics and science-driven utility management, and will be validated through affordable and intelligent water resource management for a sustainable campus environment.
The IoT technology stack will be used for Smart Management of Campus Utilities. In particular, it will be deployed for sustainable water management within the Indian Institute of Science campus, which serves as a living laboratory for controlled yet realistic validation. The outcome will lead to lower energy use through optimal pump operations, improve water quality through online prediction and detection, and reduce the water usage through knowledge sharing and citizen-science within a campus eco-system.
Join us at the Dept of ECE to know more!
The Dramatic dwindling of forests and concomitant escalation in human-wildlife conflicts have been resulting in broad environmental impact, including large economic and social costs, increasing human deaths in areas used by large mammals, and animal population decline. The project will help enable a baseline operational wireless sensor networks (WSN) system for protection of animals, humans and the forest. Over time, This will help establish credible early-warning systems, and monitoring protocols for animal use of human areas and human use of forest areas that can support recovery effects. Join us at the Dept of ECE to know more!
A Comprehensive System for Design, Deployment and Monitoring of Internet Enabled Wireless Sensor Networks. SmartWiSe platform comes with the following software and hardware components.
SmartConnect: A network design and deployment tool which provides a low-cost wireless relay network meeting QoS requirements.
SmartView: An SNMP based network health monitoring tool which probes the WSN for parameters indicative of its health status.
iWiSe Mote Platform: A low power WSN platform developed by CDAC Trivandrum. Join us at the Dept of ECE to know more!
Anechoic chamber can be understood as among the most silent rooms on earth! Yes, and we have one of these in ECE Dept. at IISc. So, how do you make a room silent enough? Two things - make no sound enter the room by making the walls isolate the room from the outside environment, and next (and more important) the walls of the room from inside absorb any sound wave hitting them. In any other room (or ambient surroundings), what you hear is not just the sound made by the speaker but also the reflections of the same sound from the walls (and/or furniture) in the room. So, its very likely that you never heard a crystal clear sound bared of any reflections from the surrounding!
To experience a crystal clear sound we have an anechoic chamber. An-echoic or "no echoes at all".
The IEEE802.15.4e Timeslotted Channel Hopping (TSCH) is a recent amendment to the Medium Access Control (MAC) portion of the IEEE802.15.4 standard. Defining IPv6 over TSCH, 6TiSCH is a key to enable the further adoption of IPv6 in industrial standards and the convergence of Operational Technology (OT) with Information Technology (IT).
Nodes in a IEEE802.15.4e TSCH network communicate by following a
Time Division Multiple Access (TDMA) schedule. A timeslot in this schedule
provides a unit of bandwidth that is allocated for communication between neighbor
nodes. The allocation can be programmed such that the predictable transmission
pattern matches the traffic. This avoids idle listening, and extends battery lifetime
for constrained nodes. Channelhopping improves reliability in the presence of
narrowband interference and multipath fading.
Lab involved: Network Labs, Department of ECE, Indian Institute of Science.
What do magic tricks have to do with file compression? How does file compression work?
How are we able to talk clearly on our cell phones even when there is noise? All this and more...
Lab involved: Navin Kashyap's Lab, Department of ECE, Indian Institute of Science.
Integrated Optical devices are becoming fundamental components in several application fields such as medicine, biotechnology, automotive, aerospace, food quality control, chemistry, to name a few. Integrated optical sensors are used for detection of chemical and biological species, including biological macromolecules (proteins, nucleic acids, and other macromolecules), nanoparticles and virus particles. Homogeneous sensing, surface sensing, absorption-based sensing are some of the types of sensing.
Research students of Applied Photonics Lab have designed sensors based on Gratings, Directional couplers, Waveguide and Ring resonators. Recent works include an optical MEMS accelerometer based on double ring resonator for vibrational sensing application and the investigation of biochemical molecular sensing factor of guided mode resonance grating filter (GMRGF) of a sensitive label-free biosensor.
The demand for high speed wireless data is increasing by the day and it is proposed to use multiple antennas in mobile devices to improve these rates.
However more antennas mean larger devices. In this demo, we try to find out the effect of speed and that of the size of the mobile device on the achievable data speeds.
Advances in the area of image sensor technology and the mobile revolution have fueled a tremendous surge in number of mobile/embedded products with high resolution image sensors. We will soon be witnessing large scale deployments of Surveillance Cameras to monitor our public spaces. For applications involving static surveillance cameras, the data rates required to relay these video feeds from many cameras to the servers for centralized processing is surpassing the data-rates the networks could support. For applications involving drone/moving platform based surveillance, energy constraints make direct relay of video feeds in-feasible. This makes it imperative to design "Smart-Camera" systems that are intelligent to identify and extract out the information of interest from the captured videos in real-time and just relay that information. We are working towards developing one such "Smart-Camera" system. Here we demonstrate a system that does Real-Time Detection of objects such as humans, cars, motorcycles, bicycles etc.., in surveillance videos, using a Convolutional Neural Network running on an Nvidia Titan Black GPU.
Coupling of light from an optical fiber to waveguide: A large mismatch between the common optical fiber dimension and that of the high-index-contrast waveguide makes it difficult to couple light in and out of the chip. A number of techniques have been utilized for this purpose, including prism couplers, grating couplers, tapered fibers, and micro lens mode transformers
Modes in Optical Fibers: Light has a dual nature and can be viewed as either a wave phenomenon or a particle phenomenon. The mode theory uses electromagnetic wave behaviour to describe the propagation of light along a fiber. The optical wave is effectively confined within the guide and the electric field distribution in the x direction does not change as the wave propagates in z direction. The stable field distribution in the x direction with only periodic z dependence is known as a mode.
Polaroid- Materials that produce polarization for the light passing through them. Diffraction- Bending of waves around the edges of an obstacle. This happens when the dimensions of the obstacle are comparable to the wavelength of light. Total Internal Reflection- When a ray enters from a denser medium to a rarer medium with the angle of incidence greater than the critical angle, then all of it is reflected into the original medium. Interference-when two or more waves of same frequency overlap, the resultant depends on the amplitude and phase of the waves.
Integrated Optics is a system of light-controlling components combined into a single device. The aim is to create miniature optical circuits similar to silicon chips that have revolutionized the electronics industry. Here the data can be processed at much higher speeds because of the high frequency of the light signal. Some of the components include optical filters, modulators, amplifiers, lasers and photodetectors.
It is forecasted that energy pricing would soon follow a demand-supply based market model in a prosumer driven environment. This project aims to develop a customizable intelligent electronic switch-board with inbuilt computing capabilities and advanced intelligence. The smart switch-board enables intelligent instrumentation at the appliance level. The key functionalities include:
1. Remote control of each appliance through a web/app front end.
2. Measurement of current for each appliance connected to the switchboard.
3. Sensing humans presence using RF-sensing for automatic appliance control.
4. Framework for control based on actionable intelligence generated by data-analytics towards minimizing waste-energy footprint for home-offices.
Whether for business or leisure, we spend an increasing proportion of our time in our cars. We have seen a corresponding increase in the implementation of all kinds of technologies in the car for entertainment, utility, and safety. A typical high-end car today has AM, FM, DAB and GSM satellite radio, tire-pressure monitoring (TPM), remote entry and start, in-vehicle TV, GPS navigation, Bluetooth, electronic toll collection, and multiple radar systems (e.g. collision avoidance, parking assistance, adaptive cruise control).
Next generation vehicles will add LTE, Wi-Fi and additional systems for automated driver assistance. Specialized vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) ad-hoc communication networks are currently some of the most popular fields of research for efficient car information systems. The implication is that engineers have to place an ever-increasing number of wireless systems, each one with its own dedicated antenna(s), in relatively close proximity on the same vehicle.
Initial placement of these antennas in a non-interfering manner is a big challenge, even before taking into account the duplication of the antennas to support the diversity requirements of systems such as V2V communications. For this reason, engineers typically want to know not just how an antenna behaves in the free-space environment of the anechoic chamber, but also how it will perform in its installed environment. The transmitters used in automotive environment also have to comply with legal limits on human exposure and SAR. Performing an installed performance analysis using prototypes alone can be expensive, time-consuming, or even impossible. Simulation of a virtual prototype system can make the process of deciding where to place an antenna and analyzing its performance much more straightforward.
We demonstrate some of the contributions of radio frequency in to the car
a. Collision avoidance system
b. Adaptive cruise control
c. AM, FM, DAB and GSM satellite radio,
d. Tire-pressure monitoring (TPM),
e. Remote entry and start.
f. In-vehicle TV
g. GPS navigation
h. Bluetooth, electronic toll collection, and multiple radar systems
Lab involved: NICE Lab, Department of ECE, Indian Institute of Science.
The research in the ECE department at IISc is focussed in many different areas. Some of them include communication networks, signal processing, microelectronics, information theory etc. The problems that we aim to address are modeled using mathematical tools which are then solved using probabilistic and analytical techniques. While the techniques themselves need elaborate and rigorous mathematics to be done, the ideas behind them are very illustrious and are worth a mention in their own right. ECEnigma aims to bring you closer to the research being done at the ECE department in IISc by giving you a peek into these ideas through a variety of puzzles. While solving these puzzles are a good exercise by themselves, we hope you would take these ideas back with yourselves. This excerpt from the movie V for Vendetta captures the spirit we wish to instill through ECEnigma: “We are told to remember the idea, not the man, because a man can fail. He can be caught, he can be killed and forgotten, but 400 years later, an idea can still change the world.”
Demonstration of wireless data transmission using OFDM transmit and receive chain with GNU Radio and RF hardware (USRP N210). We will show the effect of different channel estimation techniques which exploits sparsity of wireless wide band channel on the recovery of data.
Photonics is considered as the technology of this century like electronics of last century. Already fiber optic Communications is a reality. Optical networking is an important development in the near future. To realise this we need several components and devices, such as routers, Mux/demuxes, filters, etc. Photonics can provide these optical components in chip form.
Looking into the future quantum communications is an exciting domain with far reaching impact, particularly on security aspects. Here quantum states of photons, typically in terms of optical waveguide modes, can be used to represent information bits, rather qubits. Photonics is poised to be the best way to implement quantum information functions, once again in the form of optical integrated circuits. Quantum computing through photonics may also be possible..
The data you want is stored in the cloud and there is a lot of it - billions of Gigabytes within a single data centre to be precise. This data is stored on machines and machines break down, so who is making sure that this data is available to you and -- that it stays that way ?
This talk will explain how a modern-day class of of erasure-correcting codes is working overtime to make sure that the cloud does not disappoint!
Free space optical communication is now being widely recognized as an important mode of communication that can offer high speed, high fidelity data pathway across varying spatial scales. In this talk I will introduce the field of free-space optical communications and explain the use of light as a medium of data communication at two extremes of spatial scales, namely, indoor Li-Fi application and inter-planetary LaserComm application. I will highlight the various hardware components that go into such optical systems, some recent research breakthroughs in this field and also our interest in the ECE department in this field.
Claude Shannon was an engineer, a mathematician, an inventor, and a juggler extraordinaire. His revolutionary MSc thesis showed how Boolean logic could be applied to switching circuits, thus paving the way for all digital circuits today. He later showed that digital communication could far outperform analog communication, and laid down the theory of digital communication and file compression. He also made deep contributions to cryptography. Yet, his name is virtually unknown outside academic circles today. To celebrate the 100th birth anniversary of this architect of the digtal age, we will screen a short video outlining his life and contributions.
Claude Shannon was an engineer, a mathematician, an inventor, and a juggler extraordinaire. His revolutionary MSc thesis showed how Boolean logic could be applied to switching circuits, thus paving the way for all digital circuits today. He later showed that digital communication could far outperform analog communication, and laid down the theory of digital communication and file compression. He also made deep contributions to cryptography. Yet, his name is virtually unknown outside academic circles today. An exhibition of posters and videos that outline his life and contributions will be set up at the department of ECE.
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