Minimizing energy for wireless web access with bounded slowdown
Proceedings of the 8th annual international conference on Mobile computing and networking
Analysis of IEEE 802.11e for QoS support in wireless LANs
IEEE Wireless Communications
Analysis of the integration of IEEE 802.11e capabilities in battery limited mobile devices
IEEE Wireless Communications
MPEG-4 and H.263 video traces for network performance evaluation
IEEE Network: The Magazine of Global Internetworking
An adaptive solution for Wireless LAN distributed power saving modes
Computer Networks: The International Journal of Computer and Telecommunications Networking
Parallel connections and their effect on the battery consumption of a mobile phone
CCNC'10 Proceedings of the 7th IEEE conference on Consumer communications and networking conference
IEEE 802.11 E QoS and power saving features overview and analysis of combined performance
IEEE Wireless Communications
Wireless Personal Communications: An International Journal
Leveraging 802.11n frame aggregation to enhance QoS and power consumption in Wi-Fi networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
On centralized schedulers for 802.11e WLANs distribution versus grouping of resources allocation
Wireless Communications & Mobile Computing
Enhancing the performance of TCP over Wi-Fi power saving mechanisms
Wireless Networks
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The integration of wireless LAN technology in mobile devices such as cellular phones, PDAs or laptops has become a user need due to its popularity in providing high speed wireless Internet access at a low cost. Such devices though should meet users' expectations with regard to QoS, i.e., guarantee a reasonable voice quality when VoIP is used, and power saving efficiency, i.e., standby and calling times should be similar to the ones of cellular phones. The IEEE 802.11e standard, which extends the 802.11 wireless LAN MAC layer with QoS and power saving enhancements, should be the most appropriate solution to address users' wishes in those devices. In this paper, we focus on the 802.11e functionality likely to be included in mobile devices in the short-term, EDCA for QoS and U-APSD for power saving, and evaluate the performance improvements and associated costs of two possible configurations of U-APSD as compared to the 802.11 power save mode. In addition, the dependency between the QoS and power saving enhancements obtained with U-APSD and the available channel capacity is analyzed considering three different scenarios: 802.11b, 802.11b+g and 802.11g. The evaluation is based on our proposed implementation of U-APSD: Static U-APSD (SU-APSD). The main conclusions that can be drawn from our results are that U-APSD significantly outperforms the 802.11 power save mode in all considered performance metrics and that the performance enhancements obtained with U-APSD are independent of the available channel capacity.