Packet Coding with Joint Power and Rate Control for Underwater Broadcast Networks

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.

[1]  Parastoo Sadeghi,et al.  Joint Optimization of Throughput and Packet Drop Rate for Delay Sensitive Applications in TDD Satellite Network Coded Systems , 2014, IEEE Transactions on Communications.

[2]  Milica Stojanovic,et al.  On Coding for Delay—Network Coding for Time-Division Duplexing , 2012, IEEE Transactions on Information Theory.

[3]  P. Casari,et al.  Towards Optimal Broadcasting Policies for HARQ based on Fountain Codes in Underwater Networks , 2008, 2008 Fifth Annual Conference on Wireless on Demand Network Systems and Services.

[4]  M. Stojanovic,et al.  Random linear packet coding for high speed acoustic communication: An experimental analysis , 2012, 2012 Oceans - Yeosu.

[5]  T. Oyama,et al.  WORKSHOP I , 1997 .

[6]  Milica Stojanovic,et al.  Joint power and rate control with constrained resources for underwater acoustic channels , 2015, OCEANS 2015 - MTS/IEEE Washington.

[7]  M. Stojanovic,et al.  Statistical Characterization and Computationally Efficient Modeling of a Class of Underwater Acoustic Communication Channels , 2013, IEEE Journal of Oceanic Engineering.

[8]  Milica Stojanovic,et al.  Broadcasting in time-division duplexing: A random linear network coding approach , 2009, 2009 Workshop on Network Coding, Theory, and Applications.

[9]  M. Chitre,et al.  On the use of rate-less codes in underwater acoustic file transfers , 2007, OCEANS 2007 - Europe.

[10]  M. Stojanovic,et al.  Random linear packet coding for broadcast networks , 2014, 2014 Oceans - St. John's.

[11]  Milica Stojanovic,et al.  Random linear packet coding for fading channels , 2013, 2013 OCEANS - San Diego.