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arXiv · 1701.01958

Joint Power and Admission Control based on Channel Distribution Information: A Novel Two-Timescale Approach

Qitian Chen·Dong Kang·Yichu He·Tsung-Hui Chang·Ya-Feng Liu
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Abstract

In this letter, we consider the joint power and admission control (JPAC) problem by assuming that only the channel distribution information (CDI) is available. Under this assumption, we formulate a new chance (probabilistic) constrained JPAC problem, where the signal to interference plus noise ratio (SINR) outage probability of the supported links is enforced to be not greater than a prespecified tolerance. To efficiently deal with the chance SINR constraint, we employ the sample approximation method to convert them into finitely many linear constraints. Then, we propose a convex approximation based deflation algorithm for solving the sample approximation JPAC problem. Compared to the existing works, this letter proposes a novel two-timescale JPAC approach, where admission control is performed by the proposed deflation algorithm based on the CDI in a large timescale and transmission power is adapted instantly with fast fadings in a small timescale. The effectiveness of the proposed algorithm is illustrated by simulations.

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Qitian Chen, Dong Kang, Yichu He, Tsung-Hui Chang, Ya-Feng Liu. 2017-01-08. Joint Power and Admission Control based on Channel Distribution Information: A Novel Two-Timescale Approach. https://doi.org/10.1109/lsp.2017.2651047

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