Rameez Ahmed
ABSTRACT
We consider random linear packet coding for an underwater acoustic broadcast network. Joint power and rate control is considered as a means to overcome the effects of channel fading. Two main constraints are imposed in our optimization: (i) the transmit power cannot exceed a maximal value, and (ii) the number of coded packets should not exceed a maximum value. Under these constraints, we define two adaptation policies to adjust the transmit power and number of coded packets such that the average energy per bit is minimized. In the first case, the transmitter adapts in accordance with the average of the channel gains (average link rule) obtained as a feedback from each receiving node. In the second case, the transmitter adjusts its parameters in accordance with the lowest channel gain (worst link rule) among the receiving nodes. We show simulation results to quantify the energy savings available by employing the adaptation policies.
- M. Chitre and M. Motani, "On the use of rate-less codes in underwater acoustic file transfers," in Oceans - Europe, 2007, pp. 1--6, June 2007.Google Scholar
- D. Lucani, M. Medard, and M. Stojanovic, "On coding for delay; network coding for time-division duplexing," IEEE Trans. on Information Theory, vol. 58, pp. 2330--2348, 2012. Google ScholarDigital Library
- R. Ahmed and M. Stojanovic, "Random linear packet coding for high speed acoustic communication: An experimental analysis," in OCEANS, 2012 - Yeosu, pp. 1--7, May 2012.Google Scholar
- M. Esmaeilzadeh, N. Aboutorab, and P. Sadeghi, "Joint optimization of throughput and packet drop rate for delay sensitive applications in tdd satellite network coded systems," Communications, IEEE Transactions on, vol. 62, pp. 676--690, February 2014.Google ScholarCross Ref
- R. Ahmed and M. Stojanovic, "Random linear packet coding for fading channels," in Oceans - San Diego, 2013, pp. 1--6, Sept 2013.Google Scholar
- P. Casari, M. Rossi, and M. Zorzi, "Towards optimal broadcasting policies for harq based on fountain codes in underwater networks," in Wireless on Demand Network Systems and Services, 2008. WONS 2008. Fifth Annual Conference on, pp. 11--19, Jan.Google Scholar
- D. Lucani, M. Medard, and M. Stojanovic, "Broadcasting in time-division duplexing: A random linear network coding approach," in Network Coding, Theory, and Applications, 2009. NetCod '09. Workshop on, pp. 62--67, June 2009.Google Scholar
- R. Ahmed, M. Stojanovic, and M. Chitre, "Random linear packet coding for broadcast networks," in Oceans - St. John's, 2014, pp. 1--6, Sept 2014.Google Scholar
- R. Ahmed and M. Stojanovic, "Joint power and rate control with constrained resources for underwater acoustic channels," in Oceans - Washington D.C, 2015, pp. 1--8, Oct 2015.Google Scholar
- P. Qarabaqi and M. Stojanovic, "Statistical characterization and computationally efficient modeling of a class of underwater acoustic communication channels," Oceanic Engineering, IEEE Journal of, vol. 38, pp. 701--717, Oct 2013.Google ScholarCross Ref
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