Distributed Pricing-Based User Association for Downlink Heterogeneous Cellular Networks
Kaiming Shen, Wei Yu

TL;DR
This paper introduces distributed algorithms for user association in heterogeneous cellular networks, optimizing for fairness, power control, and beamforming, with improved performance guarantees and reduced handovers.
Contribution
It proposes novel distributed price update and joint optimization algorithms for user association, power control, and beamforming, with rigorous performance guarantees and practical implementation advantages.
Findings
The price update algorithm is parameter-independent and asynchronous.
Joint user association and power control significantly outperform existing methods.
The beamforming approach achieves near-benchmark performance with fewer handovers.
Abstract
This paper considers the optimization of the user and base-station (BS) association in a wireless downlink heterogeneous cellular network under the proportional fairness criterion. We first consider the case where each BS has a single antenna and transmits at fixed power, and propose a distributed price update strategy for a pricing-based user association scheme, in which the users are assigned to the BS based on the value of a utility function minus a price. The proposed price update algorithm is based on a coordinate descent method for solving the dual of the network utility maximization problem, and it has a rigorous performance guarantee. The main advantage of the proposed algorithm as compared to the existing subgradient method for price update is that the proposed algorithm is independent of parameter choices and can be implemented asynchronously. Further, this paper considers the…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsAdvanced MIMO Systems Optimization · Advanced Wireless Network Optimization · Cooperative Communication and Network Coding
