CLUES: A Cross-Layer Energy Saving Scheme for Wi-Fi Networks
學年 107
學期 2
出版（發表）日期 2019-05-01
作品名稱 CLUES: A Cross-Layer Energy Saving Scheme for Wi-Fi Networks
作品名稱（其他語言）
著者 Jenn-Wei Lin; Chi-Yi Lin
單位
出版者
著錄名稱、卷期、頁數 Journal of Internet Technology 20(3), pp. 741-753
摘要 The problem of significant energy consumption by the built-in Wi-Fi interface of mobile devices has been discussed for many years. We propose a cross-layer energy-saving scheme to maximize the sleep time and minimize the number of state transitions in the Wi-Fi interface of a mobile device. To achieve energy savings, we defer and join packet transmissions of mobile apps. However, some mobile apps may have delay constraint requirements for their packet transmissions. To avoid violating the delay constraint of an app, we also determine the final transmission interval of each delay-constrained packet. After joining the transmissions of some packets, the Wi-Fi interface can have a longer sleep duration to reduce energy consumption. To fully utilize the Wi-Fi bandwidth of the mobile device and satisfy the transmission requirements of different delay-constrained apps, the problem of selecting packets to join their transmissions is mapped to the well-known knapsack problem. We develop a greedy algorithm to efficiently solve the above mapping problem. Finally, simulation experiments are performed to demonstrate the effectiveness of the proposed scheme in energy savings and transmission delay.
關鍵字
語言 en_US
ISSN 2079-4029
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者
審稿制度 是
國別 TWN
公開徵稿
出版型式 ,電子版
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