Distributed beamforming algorithm based on game theory in device-to-device communications
| Autor: | Xian-zhong Xie, Chuan-wen Li, Shuang-guo Cheng, He-lin Yang, Shu Tang |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | International Journal of Distributed Sensor Networks, Vol 14 (2018) |
| Druh dokumentu: | article |
| ISSN: | 1550-1477 15501477 |
| DOI: | 10.1177/1550147718786929 |
| Popis: | In the device-to-device communication network, there is the interference problem when device-to-device users share the same spectrum with cellular users, a distributed beamforming scheme based on non-cooperative game is proposed to maximize weighted sum rate under the rated transmit power and the users’ quality of service. Since the optimization problem is non-concave, we first obtain the solution of the Karush-Kuhn-Tucher (KKT) condition for the downlink beamforming problem of each sender by dual decomposition. Second, a distributed beamforming algorithm based on the non-cooperative game is proposed, which can quickly converge to the Nash equilibrium point with a lower information exchange overhead. Finally, the simulation results show that the proposed algorithm has better performance in terms of system sum rate and fairness than the existing algorithms. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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