A distributed admission control algorithm for multiceli MISO downlink systems
Shashika Manosha, K. B.; Joshi, S.; Codreanu, M.; Rajatheva, N.; Latva-aho, M. (2018-04-16)
K. B. S. Manosha, S. Joshi, M. Codreanu, N. Rajatheva and M. Latva-aho, "A distributed admission control algorithm for multiceli MISO downlink systems," 2017 51st Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, 2017, pp. 1397-1401. doi: 10.1109/ACSSC.2017.8335584
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https://urn.fi/URN:NBN:fi-fe202003238721
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Abstract
The problem of admission control in a multiceli downlink multiple-input single-output system is considered. The objective is to maximize the number of admitted users subject to a signal-to-interference-plus-noise ratio constraint at each admitted user and a transmit power constraint at each base station. We cast the admission control problem as an l 0 minimization problem. This problem is known to be combinatorial, NP-hard. Hence, we have to rely on suboptimal algorithms to solve it. We approximate the l 0 minimization problem via a non-combinatorial one. Then, we propose a distributed algorithm to solve the non-combinatorial problem. The proposed algorithm is derived by using alternating direction method of multipliers in conjunction with sequential convex programming. We show numerically that the proposed algorithm achieves a near-to-optimal performance.
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