A scheduling-based delay-tolerant power saving scheme for the IEEE 802.16e wireless MAN

Huei Wen Ferng*, Cheng Lun Liu, Jeng Ji Huango, Chih Cheng Tseng

*此作品的通信作者

研究成果: 書貢獻/報告類型會議論文篇章

7 引文 斯高帕斯(Scopus)

摘要

When the system load is high or congestion occurs, a base station (BS) in the IEEE 802.16e metropolitan area network (MAN) is not able to transmit all buffered packets to mobile stations (MSs) within a frame interval, resulting in extra energy consumption for MSs to wake up for receiving pending packets. To save energy for such a situation, we first propose a schedulingbased delay-tolerant traffic indication message (D-TIM) scheme to enable a BS to properly schedule queued packets for non-real-time variable rate (NRT-VR) and best effort (BE) using information of delay threshold (DT), which can be derived from QoS parameters, and to determine the time offset between the frame in which an MS has to wake up and the frame containing a TIM message. With the time offset, MSs are able to wake up more precisely so that energy can be efficiently saved and less packet delay can be reached. Furthermore, two variants of D-TIM are also proposed for solving the problem of higher jitter to the unsolicited grant service (UGS). Through simulation, we demonstrate that D-TIM outperforms other related schemes in the literature in terms of energy efficiency and packet delay and the two variants reduce jitter greatly as compared to D-TIM while maintaining good energy efficiency and less packet delay.

原文英語
主出版物標題2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
頁面2321-2325
頁數5
DOIs
出版狀態已發佈 - 2008
事件2008 IEEE 67th Vehicular Technology Conference-Spring, VTC - Marina Bay, 新加坡
持續時間: 2008 五月 112008 五月 14

出版系列

名字IEEE Vehicular Technology Conference
ISSN(列印)1550-2252

其他

其他2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
國家/地區新加坡
城市Marina Bay
期間2008/05/112008/05/14

ASJC Scopus subject areas

  • 電腦科學應用
  • 電氣與電子工程
  • 應用數學

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