Transfer Time, Energy, and Quota-Aware Multi-RAT Operation Scheme in Smartphone
Transfer Time, Energy, and Quota-Aware Multi-RAT Operation Scheme in Smartphone
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DOI：
10.1109/tvt.2015.2395132
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发表时间：
2016
影响因子：
6.8
通讯作者：
Wonbo Lee;Jonghoe Koo;Yongseok Park;Sunghyun Choi
中科院分区：
文献类型：
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作者：
Wonbo Lee;Jonghoe Koo;Yongseok Park;Sunghyun Choi
当今的智能手机集成了多种无线电接入技术（多RAT），例如，第三代（3G）、第四代（4G）、Wi-Fi和蓝牙，而集成RAT的数量正在增加。因此，在可用RAT中选择最佳RAT集合并且确定经由每个所选RAT网络传送多少数据变得更加重要。我们提出了一种多RAT接口激活算法，支持智能手机文件传输服务的系统设计（例如，下载电影文件）。我们建立了一个多属性的成本函数模型，将文件传输完成时间，能源消耗和数据使用配额结合在一起。本文的目标是找出最佳的多RAT集被激活与相应的文件段分配，最小化给定的能量和配额约束下的成本函数。通过该算法，可以找到次优解，而不会显着的性能下降，从最优解，同时使计算复杂度的RAT的数量线性。
Today's smartphones integrate multiple radio access technologies (multi-RAT), e.g., third-generation (3G), fourth-generation (4G), Wi-Fi, and Bluetooth, whereas the number of integrated RATs is increasing. Therefore, it is becoming more important to select the best RAT set among the available RATs and determine how much data to transfer via each selected RAT network. We propose a multi-RAT interface activation algorithm with supporting system design for smartphones' file transfer service (e.g., downloading a movie file). We model a multiattribute cost function incorporating file-transfer completion time, energy consumption, and data usage quota together. The goal of this paper is to find out the optimal multi-RAT set to be activated with the corresponding file segment allocation that minimizes the cost function under given energy and quota constraints. By the proposed algorithm, the suboptimal solution can be found without significant performance degradation from the optimal solution while making the computational complexity linear in the number of RATs.