Title :
Robust probabilistic distributed power allocation by chance constraint approach
Author :
Parsaeefard, Saeedeh ; Sharafat, Ahmad R. ; Rasti, Mehdi
Author_Institution :
Dept. of Electr. & Comput. Eng., Tarbiat Modares Univ., Tehran, Iran
Abstract :
We propose a scheme for maintaining the requested SIR of each user under uncertainty of system parameters in the power control of interference limited wireless networks. In doing so, we keep the outage probability of users below their predefined threshold with minimal power consumption. To reduce the complexity, we apply the notion of chance constraint robust optimization to the outage probability. This approach preserves the convexity of the problem and maintains its tractability. For solving the reformulated problem, a distributed probabilistic robust power algorithm is developed based on the standard interference function and local convergence, which utilizes infrequent message passing. We derive the conditions for the convergence of our algorithm, and prove the optimality of the equilibrium.
Keywords :
power control; probability; radio networks; radiofrequency interference; SIR; chance constraint robust optimization; infrequent message passing; local convergence; outage probability; parameter uncertainty; power consumption; power control; robust probabilistic distributed power allocation; standard interference function; wireless network; Base stations; Convergence; Interference; Message passing; Resource management; Robustness; Uncertainty; Chance constraint approach; price of robustness; robust optimization; robust probabilistic distributed power allocation;
Conference_Titel :
Personal Indoor and Mobile Radio Communications (PIMRC), 2010 IEEE 21st International Symposium on
Conference_Location :
Instanbul
Print_ISBN :
978-1-4244-8017-3
DOI :
10.1109/PIMRC.2010.5671667