Constrained Joint Bit and Power Allocation for Multicarrier Systems

被引:0
作者
Bedeer, Ebrahim [1 ]
Dobre, Octavia A. [1 ]
Ahmed, Mohamed H. [1 ]
Baddour, Kareem E.
机构
[1] Mem Univ Newfoundland, Fac Engn & Appl Sci, St John, NF A1B 3X5, Canada
来源
2012 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM) | 2012年
关键词
Adaptive modulation; bit allocation; joint optimization; multicarrier systems; power allocation; OFDM;
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
This paper proposes a novel low complexity joint bit and power suboptimal allocation algorithm for multicarrier systems operating in fading environments. The algorithm jointly maximizes the throughput and minimizes the transmitted power, while guaranteeing a target bit error rate (BER) per subcarrier and meeting a constraint on the total transmit power. Simulation results are described that illustrate the performance of the proposed scheme and demonstrate its superiority when compared to the algorithm in [4] with similar or reduced computational complexity. Furthermore, the results show that the performance of the proposed suboptimal algorithm approaches that of an optimal exhaustive search with significantly lower computational complexity.
引用
收藏
页码:3655 / 3660
页数:6
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