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12.01.2018 | Ausgabe 5/2019 Open Access

Wireless Networks 5/2019

Complexity of coordinated beamforming and scheduling for OFDMA based heterogeneous networks

Wireless Networks > Ausgabe 5/2019
Jakob Belschner, Veselin Rakocevic, Joachim Habermann


Coordination is foreseen to be an important component of future mobile radio networks. It is especially relevant in heterogeneous networks, where high power base stations produce strong interference to an underlying layer of low power base stations. This work investigates in detail the achievable performance gains for one coordination technique—coordinated beamforming. It reveals the main factors that influence the throughput of the mobile stations. These findings are combined with an analysis of the computational complexity. As a result, a heuristic algorithm is presented that achieves results close to an exhaustive search with significantly less calculations. Detailed simulation analysis is presented on a realistic network layout.

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