Resource Allocation and Subcarrier Pairing in Energy Efficient Relay-Assisted OFDMA Downlink Systems

被引：0
|
作者：
Wang, Zijian [1 ]
Vandendorpe, Luc [1 ]
机构：
[1] Catholic Univ Louvain, Inst Informat & Commun Technol Elect & Appl Math, Pl Levant 2, B-1348 Louvain La Neuve, Belgium
来源：
2017 INTERNATIONAL SYMPOSIUM ON WIRELESS COMMUNICATION SYSTEMS (ISWCS) | 2017年
关键词：
CELLULAR NETWORKS; MIMO-OFDMA; OPTIMIZATION;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The energy efficiency (EE) maximization problem in amplify-and-forward (AF) relay-assisted downlink channels with orthogonal frequency-division multiple access (OFDMA) is studied. The power allocation is optimized together with subcarrier allocation and pairing at the relay. As the base station and the relay have individual power constraints, an alternating optimization approach is adopted to solve the problem. Numerical results show that the proposed algorithm outperforms other benchmark schemes in terms of EE.
引用
收藏
页码：258 / 263
页数：6
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