A Power Saving Mechanism for Mixed Service Classes in IEEE 802.16m Networks

AbstractIEEE 802.16m defines three power saving mechanisms to reduce power consumption in mobile devices. However, none of the mechanisms is designed for the situation that Real-Time (RT) data and Non-Real-Time (NRT) data both appear in networks. This paper designs a new power saving mechanism according to features of RT and NRT data. Our power saving mechanism uses a scheduling scheme to delay the transmission of NRT data until that RT data is transmitted, and then transmits RT and NRT data in the same frame in order to save power in mobile devices. In simulation experiments, we show that our power saving mechanism can save more power than IEEE 802.16m official mechanisms when mobile devices receive RT and NRT data