Energy efficient battery management

被引:154
作者
Chiasserini, CF [1 ]
Rao, RR
机构
[1] Politecn Torino, Dipartimento Elettron, I-10129 Turin, Italy
[2] Univ Calif San Diego, Ctr Wireless Commun, La Jolla, CA 92093 USA
基金
美国国家科学基金会;
关键词
battery management; energy consumption; wireless communication systems models;
D O I
10.1109/49.932692
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
A challenging aspect of mobile communications consists in exploring ways in which the available run time of terminals can be maximized. In this paper, we present a detailed electrochemical battery model and a simple stochastic model that captures the fundamental behavior of the battery, The stochastic model is then matched to the electrochemical model and used to investigate battery management techniques that may improve the energy efficiency of radio communication devices. We consider an array of electrochemical cells. Through simple scheduling algorithms, the discharge from each cell is properly shaped to optimize the charge recovery mechanism, without introducing any additional delay in supplying the required power. Then, a battery management scheme, which exploits knowledge of the cells' state of charge, is implemented to achieve a further improvement in the battery performance. In this case, the discharge demand may be delayed. Results indicate that the proposed battery management techniques improve system performance no matter which parameters values are chosen to characterize the cells' behavior.
引用
收藏
页码:1235 / 1245
页数:11
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