Ajay Ravindra


Skills

   - Stong Mathematics skills including Statistics, Probability and Linear Algebra.
   - Strong programming skills in C/C++, Shell, Perl, Expect, Python and HTML.
   - Strong oral and written communication skills.

Education

University of Southern California, Los Angeles, CA (Aug 2006-May 2008)
(Master of Science, Department of Electrical Engineering)

RV College of Engineering, Bangalore, India (Oct 2000 - Jun 2004)
(Bachelor of Engineering, Electronics and Communications Engineering)

  Overall Aggregate: 73% (GPA 3.6/4.0)


Work Experience at Motorola India

Automated CDMA Call Processing Test Tools (Jun 2004 - Jul 2006)
(As a Software Engineer at Motorola India)

   - Design and development of 100% automation tools for testing Call Processing features in the CDMA Base Station Controller
   - Impact-based test case selection from a master test suite for every feature.
   - Automated execution of selected test cases on impacted network elements while simulating all other network elements that are not affected by the feature in concern.
    Value Additions
     - Automated test production and uninterrupted test execution.
     - Reduced test execution cycle time.

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Enhanced Mobile Assisted Hard Handoff in CDMA systems (Jun 2004 - Jul 2006)
(As a Software Engineer at Motorola India)

   - Worked on optimization of the Mobile Assisted Hard Handoff feature proposed by Qualcomm Inc. for implementation in the Motorola CDMA Network.
   - The Mobile Station was directed to measure signal strengths of other pilots in the allotted frequency band and report its findings to the Base Station Controller.
   - Hard Handoffs were performed when pilots of reasonable signal strengths were found in the allotted frequency band.
     Value Additions
     - Enhanced QoS as call preservation rate is higher.
     - Handoff success rates are drastically improved as the Base Station Controller can now select the strongest target signal to during the Hard Handoff execution.

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Automated testing of IVR-based menu systems using Speech Recognition (Feb 2004 - Jun 2004)
(Summer internship at Motorola India)
Adjudged Best Project by the Dept of ECE, RVCE

   - Developed Speech Recognition code to test IVR-based menu systems that exchanged voice prompts and DTMF digits to determine the service plan purchased by a CDMA customer.
   - Voice prompts received over a T1 line are recorded and (an optimized version of) a speech recognition algorithm is used to transform it to a code.
   - Feature extraction algorithms that used Mel Frequency Cepstral Analysis were used.
   - These codes are matched with the those stored in the database, and when a successful match is found, appropriate DTMF digits are sent in response over the T1 line.
   - Click Here to know more about how such menu systems are used in Over The Air Service Provisioning of CDMA handsets.

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Projects and Papers

Home Automation System using a Remote Telephone (Jun 2003)
(Undergraduate project at the Dept of ECE, RVCE)

  - A system designed to control various electronic appliances at home using a remote (fixed-line or mobile) telephone. Each device was assigned a unique DTMF code. Up to 16 devices were supported by the system.
  - DTMF digits input at the Mobile Station were decoded at the receiving station, which activated the relays controlling input power to various electronic appliances.

Automatic Car Navigation System (May 2003)
(Submitted at the University-level Systems Engineering competition)
Awarded second place for the most competent design proposal for a real-life solution

  - Proposed solutions for an unmanned vehicle with considerations including optimum path, fuel efficiency, obstruction avoidance, safety of goods and navigation through bad road conditions.
  - The system derives the most optimum route to be taken from the specified starting point to the destination point by running various proposed algorithms.

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