Title :
Optimal Power Control over Fading Channel with Cross-Layer Performance Constraint
Author :
Bai, Xiaofeng ; Shami, Abdallah ; Primak, Serguei L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, ON
Abstract :
We consider the minimization of long-term average power consumption for data transmission from a mobile station to the base station, with the joint packet loss at both physical and MAC layers being constrained below the given value. The problem is formulated as an infinite horizon constrained Markov decision problem and solved by linear programming method. Simulations firmly verify the correctness of the proposed solution. Besides, we comment on the determination of power level applied to each adaptive transmission mode, and show that enlarging the range of performance levels offered by different transmission modes can further improve the optimal solution.
Keywords :
Markov processes; fading channels; linear programming; minimisation; adaptive transmission mode; cross-layer performance constraint; fading channel; infinite horizon constrained Markov decision problem; linear programming; optimal power control; packet loss; Base stations; Bit error rate; Data communication; Fading; Forward error correction; Linear programming; Modulation coding; Performance loss; Physical layer; Power control;
Conference_Titel :
Communications, 2008. ICC '08. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2075-9
Electronic_ISBN :
978-1-4244-2075-9
DOI :
10.1109/ICC.2008.432
