Abstract
In view of the problem of high implementation complexity and system performance degradation in existing schemes, a novel downlink coordination scheme consisting of two steps was proposed for CoMP single-user multi-input multi-output (CoMP SU-MIMO). Firstly, through a combination of the conventional network-defined method and UE-specific method, we proposed a CoMP Cooperation Set (CCS) selection method which could provide most of the achievable throughput gain with lower complexity. Secondly, a resource allocation scheme was provided for the coordination among overlapping CCSs, by inheriting the idea of fair treatment for cell-center users and cell-edge users and conquering the limitation of the conventional schemes which could be only used for non-overlapping CCS method. Simulation results show that the proposed scheme could increase the cell average throughput significantly as well as improve the fairness between cell-center users and cell-edge users compared with the existing schemes.
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Liu, M., Li, B. & Tong, Z. Cell Clustering and Resource Allocation Scheme for CoMP SU-MIMO. Wireless Pers Commun 69, 1399–1411 (2013). https://doi.org/10.1007/s11277-012-0641-3
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DOI: https://doi.org/10.1007/s11277-012-0641-3