Students' Reading Group
Department of Electrical Engineering, IIT Bombay
Department of Electrical Engineering, IIT Bombay
PHASE I and II
| Presenter Name | Sagar Sharma |
| Cluster | EE1 |
| Email-id: | sagars@ee.iitb.ac.in |
| Topic: | Some research endeavors in Wireless LAN |
| Venue: | GG002 |
| Date/Time: | 03/08/2015 at 3:30 PM |
| Pre-Requisite: | None |
| Abstract: | Wireless LAN is the most preferred solution for mobile clients because of low power consumption and high data rates. With the exponential increment in the number of clients there are lot of challenges in the WLAN scenario. In this session we will discuss about the evolution of WLAN standards, various challenges and some possible solutions to the challeges.
Keywords: Software defined networking(SDN), Virtualization, dense Wi-Fi, Wireless Multipath TCP. |
| Presenter Name | Sakshi Kapoor |
| Email-id: | sakshikapoor@ee.iitb.ac.in |
| Topic: | Optimal Scheduling in Distributed MACs under delay constraints |
| Venue: | GG301 |
| Date: | 17/08/2015 at 3:30PM |
| Pre-Requisite: | None |
| Abstract: | We consider a multiple access system (MAC) with time varying fading and bursty arrivals. At the start of each time slot, variable sized packets independently arrive at each of the transmitting terminals. We consider a distributed system where each terminal knows only its arrival process and channel value. Our goal is to design communication schemes which minimizes the average power spent in data transport, while delivering the data outage free and respecting the delay constraints. For a unit delay constraint we derive the optimal power allocation. |
| Presenter Name | Wilson AN & Sagar Sharma |
| Cluster | EE1 |
| Email-id: | wilsonan@ee.iitb.ac.in, sagars@ee.iitb.ac.in |
| Topic: | Tracking Airplanes: An SDR Based Approach |
| Venue: | GG103 |
| Date/Time: | 14/09/2015 at 3:30 PM |
| Mentor: | |
| Session Chair: | Jithin Ravi |
| Pre-Requisite: | None |
| Abstract: | With the exponential growth in the area of wireless communication standards there is a very acute need of flexible and economical hardware to test and validate the new standards and systems. Software Defined Radios(SDRs) provide a flexible and cost effective solution by providing wide bandwidth devices that can be programmed using software to combat these issues. GNU Radio is one of the most popular software used for working with SDRs. In this session we will play with one such SDR namely, the Universal Software defined Radio Peripheral-USRP and show you some interesting stuff like tracking the live Boeing 737 of Air India, etc. Apart from this basic analog and digital communication standards, GSM Modulation, etc will be also be shown live using the USRP. Keywords: Software Defined Radio(SDR), Universal Software defined Radio Peripheral(USRP), Gaussian Minimum Shift Keying(GMSK), Quadrature Phase Shift Keying(QPSK). |
| Presenter Name | Pushkaraj Shirvalkar |
| Cluster | EE1 |
| Email-id: | pushkarajvs@gmail.com |
| Topic: | A New Framework to analyze existing techniques for Iris Recognition |
| Venue: | GG302 |
| Date/Time: | 05/10/2015 at 3:30 PM |
| Useful Reference: | http://in.mathworks.com/matlabcentral/fileexchange/43645-demonstration-showing-importance-of-phase-in-images |
| Session Chair: | Hrishitosh Bisht |
| Pre-Requisite: | signal processing, wavelets, linear algebra |
| Abstract: |
With the advent of technologies supporting very high speed processors, buses and memories, the field of automated biometric systems development has experienced a surge in the magnitude of research. Current work is in the area of signal processing algorithms used in iris recognition. To narrow it down further, the wavelet based algorithms are studied. The work is proceeding in 2 directions. We propose the use of monogenic wavelets in iris recognition on account of their efficient representation of the local orientation and space localization. In parallel to this, a metric of quality is proposed for an iris image. The future work deals with comparing the performances of some signal processing algorithms as a function of this metric. This is expected to grade the robustness of these algorithms in noisy conditions.
Keywords: biometrics, signal processing, wavelets, analytic signal, image segmentation |
| Presenter Name | Mukul Ratwani |
| Cluster | EE1 |
| Email-id: | mukul.ratwani@gmail.com |
| Topic: | A power efficient equalizer for high speed optical communication |
| Venue: | GG302 |
| Date/Time: | 15/10/2015 at 3:30 PM |
| Session Chair: | Aaqib Patel |
| Pre-Requisite: | |
| Abstract: | An increase in the data rate implies less time duration per symbol. This requires close packing of symbols, which together with channel impairments result in inter symbol interference (ISI). Equalization, is traditionally seen as a technique to mitigate the problems caused by channel impairments and therefore it helps to counter the problem of ISI. A standard equalization procedure assumes some kind of knowledge about the channel impulse response. However, by contrast we do not assume any such knowledge in our model. Therefore our objective is to develop novel, robust and practical techniques to mitigate ISI based on blind equalization. |
| Presentation Slides: | Click Here. |
| Presenter Name | Aniruddh Rao |
| Cluster | EE1 |
| Email-id: | aniruddh.kabbinale@gmail.com |
| Topic: | Hows of a Campus WiFi Network with Case Study of IITB Wireless Network |
| Venue: | GG102 |
| Date/Time: | 11/1/2016 at 3:30 PM |
| Session Chair: | Shashi Ranjan |
| Pre-Requisite: | |
| Abstract: |
Whenever we come across a campus WiFi like IITB Wireless, we are posed with a few questions like what is the need for such WiFi deployment in a campus? How is the WiFi deployment managed? How are multiple WiFi networks, say one network for administration, one for general purpose users (IITB Wireless) and another for guest users (IITB Guest) hosted by same access points. How are connections to these networks made and how are they different? When a user moves from one floor to another in a building, how is it ensured the user remains connected? In this talk, I intend to address these questions and many more regarding management of a campus WiFi deployment, features provided by the WiFi deployment and advantages of WiFi deployment in a campus. I shall also talk about different ways in which user data and control data flows are handled. Based on this, I would introduce to you a new paradigm called Software Defined Networks for management of wireless networks. I would conclude by discussing on how bringing in SDN can make management of WiFi network easier and efficient. Keyword :IITB Wireless, Campus WiFi Deployment, Software Defined Networks(SDN |
| Presentation Slides: | Click Here. |
| Presenter Name | Vineet Gokhale |
| Cluster | EE1 |
| Email-id: | vineet@ee.iitb.ac.in |
| Topic: | Touching distant objects is not a fiction anymore! |
| Venue: | GG301 |
| Date/Time: | 28/01/2016 at 4.00 P.M. |
| Session Chair: | Amit Bharadwaj |
| Pre-Requisite: | None |
| Abstract: |
Advancements In the field of audio-visual media and internet have taken real-time interaction with remote entities to a whole new level. What if there was another mode of interaction which made these entities palpable?
In this talk, we will see how Haptics: the sense of touch, is being explored to enhance the remote interaction through the feeling of touch. We will discuss the working principle of tele-touch in a shared network setting, and throw light on few issues to be handled in order to ensure a risk free operation.
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| Presentation Slides: | Click Here. |
| Presenter Name | Dr. Rajlaxmi Chouhan |
| Cluster | EE1 |
| Email-id: | rajlaxmichouhan@iitb.ac.in |
| Topic: | Noise ain't that bad! : Utilizing noise in image processing |
| Venue: | GG302 |
| Date/Time: | 15/02/2016 at 3.30 P.M. |
| Session Chair: | Neeraja Saharabudhe |
| Pre-Requisite: | None |
| Abstract: |
Noise is conventionally considered undesirable in any system. Stochastic resonance, on the other hand, is a counter-intuitive phenomenon where the addition of controlled amounts of noise can be utilized to enhance a system's performance. In the past two decades, stochastic resonance has been utilized in a wide range of signal and image processing applications. This talk would focus on the application of stochastic resonance to the problems of image enhancement and watermarking.
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| Presentation Slides: | Click Here. |
| Presenter Name | Dr. Sachin Ghanekar |
| Cluster | EE1 |
| Email-id: | |
| Topic: | Object-Based Audio: A Signal Processing Overview |
| Venue: | GG302 |
| Date/Time: | 7/3/2016, 4 PM |
| Session Chair: | |
| Pre-Requisite: | None |
| Abstract: | In recent times, there is emergence of different competing audio singal processing standards in Industry that are based on a concept known as "Object Audio". The object-based audio standards are very different from traditional multi-channel audio standards and are aimed at creating realistic and immersive sound-fields for the listeners. They are designed to accomodate a variety of user application environments and user preferences and provide natural mechanism to map the objects on the user speaker setups such as Homes, Theaters, VR & Gaming Setups. This presentation tries to capture the basics of Object Audio Signal processing & summarizes the differences between object-based audio processing and channel-based audio processing mechanisms. The presentation explains how the signal processing blocks in audio renderers are designed to provide an effective immersive audio experience for different user environments & settings. Finally, it touches upon the latest industry developments in standardization of these methods and emerging trends in this field. |
| Presentation Slides: | Click Here. |
| Video Links: | http://youtube search "UDK + SuperCollider for real-time sound effect synthesis - demo 6“ http://youtube search “RealSpace 3D v0.9.9 Audio Demo-YouTube”(http://realspace3daudio.com/demos/) http://youtube search “Hear New York City in 3D Audio” (1st short clip) |
| Presenter Name | Bindita Chaudhuri |
| Cluster | EE1 |
| Email-id: | |
| Topic: | Content based Image Retrieval - Let the images do the talking! |
| Venue: | GG302 |
| Date/Time: | 14/3/2016, 3.30 PM |
| Session Chair: | |
| Pre-Requisite: | None |
| Abstract: | With the advancement of technology and rapid expansion of image databases, an efficient system with the ability to store, index, browse and retrieve information from the images is needed. Early techniques of text-based retrieval, like the one currently used by Google image search, rely on textual annotations and remarks associated with the images to find relevant images. To overcome their limitations, modern techniques make use of the rich visual content of the images. In this talk, we shall discuss about the basics of content-based retrieval and the recent advances in this field of research. As a specific application, we shall talk about an unsupervised graph-theoretic approach to region-based retrieval of remote sensing images. |
| Presentation Slides: | Click Here. |
| Presenter Name | Parthe Pandit |
| Cluster | EE1 |
| Email-id: | parthe1292@gmail.com |
| Topic: | Games and Graphs - Linear Complementarity and Clique number. |
| Venue: | GG-303 |
| Date/Time: | 05/04/2016, 3.30 PM |
| Session Chair: | Arko Chatterjee |
| Pre-Requisite: | Linear algebra |
| Abstract: |
The linear complementarity problem (LCP) is a problem in the n-dimensional eucledian space used to model Nash Equilibria in Bimatrix games, optimal points of convex quadratic programs and many more.
In graph theory, the problem of finding the largest clique (complete subgraph) is often encountered in Image processing, social media analytics, bounds on optimal sizes of error correcting codes etc.
Both these problems, the LCP and the clique number, are NP-complete. In this work we provide an alternate continuous optimization formulation, using the LCP, for the weighted clique number problem, which is a discrete optimization problem. This gives new techniques from the theory of LCPs to find efficiently computable bounds on the clique number for general graphs. The reduction of the clique number problem as a linear program with linear complementarity constraints (LPCC) indicates to the inapproximability of LPCCs.
Keywords: Games, Nash Equilibrium, Linear Complementarity, Cliques, Semidefinite Programming, Complexity |
| Presentation Slides: | Click Here. |