Ritabrata Roy

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Further Reading:

Chung-Ju Chang and Fang-Ching Ren, "Downlink Power Control in DS/CDMA Cellular Mobile Radio Network", Proceedings of ICUPC'94, San Diego (CA), 1994.

Loutfi Nuaymi, Philippe Godlewski and Xavier Lagrange, "Power Allocation and Control for the Downlink in Cellular CDMA Networks", Proceedings of PIMRC'01, San Diego (CA), 2001.

 

 

 

 

Further Reading:

Jae-Hwan Chang and Leandros Tassiulas, "Energy Conserving Routing in Wireless Ad-Hoc Networks", Proceedings of IEEE INFOCOM'00, Tel-Aviv(Israel), 2000.

Laura Marie Feeney and Martin Nilsson, "Investigating the Energy Consumption of a Wireless Network Interface in an Ad-Hoc Networking Environment", Proceedings of IEEE INFOCOM'01, Anchorage (AL), 2001.

Performance Analysis of Downlink Power Control in CDMA Systems
Soumya Das, Sachin Ganu, Natalia Rivera, Ritabrata Roy

This paper was presented at the IEEE Sarnoff Student Symposium 2004 on April 27, 2004.

Abstract

In this paper, we analyze three existing downlink power control algorithms and adapt an uplink power control algorithm for downlink. In addition, based on the concept of hysteresis, we propose an enhancement to this adapted algorithm in order to mitigate oscillations observed at low outage probabilities. Using simulation results, we show that the behavior of outage with number of iterations in our adapted algorithm converges as rapidly as the original algorithm; however the oscillations at low outage percentages have been reduced using our algorithms.

The complete text of the conference paper may be accessed here (4 pages, 63 KB).
(Requires Adobe Reader)

 

Minimum Energy Transmission in Ad-Hoc Networks with Deterministic Motion
Ritabrata Roy
, Can E. Korman, Suresh Subramaniam, Shahrokh Ahmadi

This paper was presented at the IEEE Sarnoff Student Symposium 2004 on April 27, 2004.

Abstract

This paper proposes several relay transmission schemes that lead to minimum energy consumption in a mobile ad-hoc network. The study introduces mobility in the form of a node that is capable of collecting data from sources randomly distributed in space and delivering it to a fixed gateway. It defines an energy cost function based on transmission powers, and then describes methods for locating points on its predetermined trajectory that would minimize the cost subject to a delay constraint.

The complete text of the conference paper may be accessed here (4 pages, 200 KB).
(Requires Adobe Reader)

 

Links:

Performance Analysis of Downlink Power Control in CDMA Systems by Soumya Das, Sachin Ganu, Natalia Rivera and Ritabrata Roy, submitted as partial fulfillment of course requirement in Communication Theory to Dr Predrag Spasojevic, WINLAB.

 

 

 

 

 

 

Links:

Minimum Energy Transmission Schemes for Mobile Ad-Hoc Networks, M.S. Thesis, The George Washington University, 2002.

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