Arvind swaminathan

EXPERIENCE

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  Designed a MAC protocol to be used in such a network
  
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  Developed an OPNET simulation of an ad hoc network modeling the presence of directional antennas
  
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  Demonstrated the importance of the Receiver Blocking Problem in ad hoc networks with directional antennas [2]
  
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    Developed a technique that uses an additional control packet to counter this phenomenon [2]
    
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  Developed simple distributed algorithms to improve the efficiency of spatial reuse of traffic channels in an ad hoc network [1]
  
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    The algorithms are employed by a source-destination pair to determine if conditions permit concurrent reuse of an in-use traffic channel in their neighborhood
    
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  Currently augmenting conventional routing protocols with congestion-avoidance capabilities
  
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    Used Monte Carlo simulations to demonstrate the potential gains that can be obtained by such protocols
    
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      Potential performance improvement was shown to be much more when the nodes have directional antennas
      
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    Working on a practical distributed routing protocol that uses local “utilization” measurements to achieve congestion-avoidance and realize the theoretical gains
    

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  Developed an algorithm to adapt the acquisition threshold based on the preamble sequence being used
  
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    Invented a technique to obtain asymptotically tight upper and lower bounds for the cumulative distribution function of a non-central chi-square random variable [3]
    
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  Developed an algorithm to continuously adapt the acquisition threshold to compensate for increase in acquisition probability at high signal-to-noise ratios with the basic algorithm [5,7]
  

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  Evaluated the performance of the acquisition scheme when the mobiles have sectored antennas, for an AWGN channel and a two-path channel.
  

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  Worked on the handover algorithm in DVB-H networks
  
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  Developed a scheme that uses PSI/SI information to estimate the neighborhood of the current cell
  
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    Used to conserve power by reducing the number of handover candidate DVB signals to monitor
    
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    A patent has been filed for this algorithm (docket number TI-61215)
    
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  Developed an algorithm that detects the possibility of tuning failure using the PSI/SI information
  
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    Can be used to conserve power by avoiding decoding of TPS bits to detect tuning failure
    
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    A patent has been filed for this algorithm (docket number TI-61364)
    
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  Handover algorithm handles both inter-network and intra-network handover in an unified manner
  
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    Determined an algorithm to obtain the transport stream carrying the IP streams of interest in a neighbor network
    
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  The handover algorithm specification we developed will be implemented in TI’s DTV1000 chip
  
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  Developed an OPNET simulation that can be used by the software team for verification of the implemented handover algorithm
  

Other Wireless Network Research Experience (802.11e and TCP over wireless)

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  Investigated techniques to provide guaranteed QoS in 802.11e Wireless LANs [6]
  
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    Extended the OPNET 802.11 model to develop a 802.11e model
    
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    Examined the effectiveness of various contention parameters in providing traffic differentiation
    
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      Demonstrated the trade-off between the performance improvement for high priority traffic and the performance penalty for the low priority traffic
      
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      Determined contention parameters that provide fairness in the above trade-off
      
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  Examined the performance of TCP over wireless channels using the built-in TCP models in OPNET
  

Summer Internship, Rockwell Science Center, Thousand Oaks, California: June-August 2000

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  Investigated the effectiveness of Traffic prioritization using the 802.1P standard
  
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  Developed tools to test a wireless switch that has the capability of providing different quality-of-service (QoS) to different classes of traffic
  
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    One tool measured and graphically displayed the delay experienced by packets of various priorities and the other was a graphical test program similar to the PING program
    
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  Briefly helped in implementing an Ad-hoc On-demand Distance Vector (AODV) based unicast routing protocol for a wireless Sensor network.
  

PUBLICATIONS

Conference Papers:

1. 
   A. Swaminathan, D. L. Noneaker and H. B. Russell, “Protocols for Efficient Spatial Reuse of Traffic Channels in DS Spread-Spectrum Packet Radio Networks With Directional Antennas,” Proceedings of the 2005 IEEE Military Communications Conference, Atlantic City, NJ
   

2. 
   A. Swaminathan, D. L. Noneaker and H. B. Russell, “The Importance of the Receiver Blocking Problem in a DS Mobile Ad Hoc Network with Directional Antennas,” Proceedings of the 2004 IEEE Military Communications Conference, Monterrey, CA
   

3. 
   A. Swaminathan and D. L. Noneaker, “Performance of Serial, Matched-Filter Acquisition with Adaptive Thresholds in Direct-Sequence Packet Radio Communications,” Proceedings of 2002 IEEE Military Communications Conference, Anaheim, CA
   

4. 
   D. L. Noneaker and A. Swaminathan, “Acquisition Techniques for Packet Radio Communications,” Proceedings of the Annual Allerton Conference on Communications, Control, and Computing 2002
   

5. 
   A. Swaminathan and D. L. Noneaker, “A Technique to Improve the Performance of Serial, Matched-Filter Acquisition in Direct-Sequence Packet Radio Communications,” Proceedings of 2003 IEEE International Conference on Communications, Anchorage, AK
   

6. 
   A. Swaminathan and J. Martin, “Fairness Issues in 802.11e WLAN Networks,” Proceedings of the 2006 IEEE Consumer Communications and Networking Conference, Las Vegas, NV
   

Journal Papers:

7. 
   A. Swaminathan and D. L. Noneaker, “Techniques to Improve the Performance of Serial, Matched-Filter Acquisition in Direct-Sequence Packet Radio Communications,” IEEE Journal for Selected Areas in Communications, Special issue on Military Communications, vol. 23, no. 5, pp. 909-919, May 2005.
   

8. 
   A. Swaminathan and D. L. Noneaker, “A Technique to Obtain Asymptotically Tight Upper and Lower Bounds for the Cumulative Distribution Function of a Non-Central Chi-Square Random Variable,” Submitted as a letter to the IEEE Transactions on Information Theory
   

9. 
   A. Swaminathan, D. L. Noneaker and H. B. Russell, “Mitigation of the Receiver Blocking Problem in a DS Mobile Ad Hoc Network with Directional Antennas,” Under Preparation
   

RELEVANT COURSES

Digital Communications I & II	Coding Theory & Advanced Coding Theory	Computer Networks
Internetworking (TCP/IP programming)	Telecommunication Network Modeling	Internet Performance Analysis
Distributed Computing	Information Theory	Random Processes
Linear Programming	Integrated Circuits – I	Estimation and Detection Theory

OTHER INFORMATION

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  Elected to the Alpha Epsilon Lambda honor society
  
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  Was in charge of organizing Co-op social events during my internship with Texas Instruments
  
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  References available upon request
  
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  List of projects completed available upon request
  
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  Copies of publications available through html version of the resume at my homepage (http://www.ces.clemson.edu/~swamina)
  

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