A real-time joint subcarrier, bit, and power allocation scheme for multiuser OFDM-based systems

Yung Fang Chen, Jean Wei Chen, Chih Peng Li

研究成果: 雜誌貢獻會議論文同行評審

1 引文 斯高帕斯(Scopus)

摘要

In this paper, we propose a real-time subcarrier, bit, and power allocation algorithm for OFDM-based multiuser communication systems in downlink transmission. Assuming that base stations know the channel gains of all subcarriers of all users, the proposed loading algorithm tries to minimize the required transmit power while satisfying the rate requirement and data error rate constraint of each user. The novel algorithm determines subcarrier, bit, and power allocation simultaneously by enhancing the suboptimal algorithm in while having the same computational complexity. The proposed scheme offers better performance in terms of transmit power than as demonstrated in the simulation results, wherein the performance of the scheme in was close to that of the optimal solution.

原文???core.languages.en_GB???
頁(從 - 到)1826-1830
頁數5
期刊IEEE Vehicular Technology Conference
59
發行號3
出版狀態已出版 - 2004
事件2004 IEEE 59th Vehicular Technology Conference, VTC2004-Spring: Towards a Global Wireless World - Milan, Italy
持續時間: 17 5月 200419 5月 2004

指紋

深入研究「A real-time joint subcarrier, bit, and power allocation scheme for multiuser OFDM-based systems」主題。共同形成了獨特的指紋。

引用此