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This paper considers the energy saving problem of IEEE 802.16e networks which consist of a base station and multiple mobile stations. The mobile station may establish one or multiple connections that have specific QoS requirements, including a bandwidth requirement and delay bounds. Since the mobile station turns off the transceiver to save energy when all connections of the mobile station enter sleep...
To minimize the power consumption of a mobile device, mobile WiMAX based on IEEE 802.16/802.16e defines three power saving classes for transmitting different types of data traffic. However, the standard specification does not suggest a power saving class for transmitting background TCP traffic, such as a long FTP session. This paper investigates the energy efficiency of TCP transmission over a WiMAX...
The efficiency of power saving mechanism on wireless communications will influence the time the mobile stations (MSs) can operate. Due to the characteristics of centralized control in WiMAX system, the sleeping period of each subscriber is dominated by a base station (BS) based on their service types, traffic loads, and expected sleeping periods. The power saving mechanism uses an exponential backoff...
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