Message-Passing-Based Dynamic Point Selection for Coordinated Multipoint Transmission
- Authors
- Lee, Sang Hyun; Sohn, Illsoo
- Issue Date
- Oct-2015
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Affinity propagation; MIMO; cooperative communication; message passing algorithm
- Citation
- IEEE COMMUNICATIONS LETTERS, v.19, no.10, pp.1850 - 1853
- Journal Title
- IEEE COMMUNICATIONS LETTERS
- Volume
- 19
- Number
- 10
- Start Page
- 1850
- End Page
- 1853
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/10104
- DOI
- 10.1109/LCOMM.2015.2461158
- ISSN
- 1089-7798
- Abstract
- This letter develops a dynamic point selection strategy for coordinated multipoint transmission using a message-passing approach. The dynamic determination of the best transmit point for individual users with the objective of the sum-rate maximization can be cast as a bipartite b-matching problem, the computational cost of which, however, becomes quickly intractable with the increasing number of users. Therefore, this letter develops a message-passing algorithm that solves this computationally demanding challenge. Simulation results show that the proposed algorithm outperforms existing greedy-style approaches and provides a very efficient solution for the maximal sum-rate configuration.
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