A QoS-Guaranteed Energy-Efficient Packet Scheduling Algorithm for WiMax Mobile Devices

A mobile device may run energy consuming multimedia applications, such as video streaming. Thus, power management is an important issue in mobile devices. In this paper, we propose a QoS-guaranteed energy-efficient packet scheduling algorithm for IEEE 802.16-2009 (WiMax) network interfaces. The integration of packet scheduling and sleep mode operation can make IEEE 802.16-2009-enabled mobile devices more energy efficient. Simulation results show that the proposed packet scheduling algorithm has 14.37% less energy consumption than the naive algorithm, and it does not sacrifice average packet delay. The contributions of our proposed algorithm are that our algorithm is suitable for wireless environments where connections come and go rapidly and the time complexity of our algorithm is low.

[1]  You-Lin Chen,et al.  Energy-efficient packet scheduling algorithms for real-time communications in a mobile WiMAX system , 2008, Comput. Commun..

[2]  J. Morris Chang,et al.  WiMax: The Emergence of Wireless Broadband , 2006, IT Professional.

[3]  Zsehong Tsai,et al.  Design of a Packet Scheduling Scheme for Downlink Channel in IEEE 802.16 BWA Systems , 2008, 2008 IEEE Wireless Communications and Networking Conference.

[4]  Neung-Hyung Lee,et al.  MAC sleep mode control considering downlink traffic pattern and mobility , 2005, 2005 IEEE 61st Vehicular Technology Conference.

[5]  Wen-Hwa Liao,et al.  Power-saving scheduling with a QoS guarantee in a mobile WiMAX system , 2009, J. Netw. Comput. Appl..

[6]  Hassan Artail,et al.  New Scheduling Architecture for IEEE 802.16 Wireless Metropolitan Area Network , 2007, 2007 IEEE/ACS International Conference on Computer Systems and Applications.

[7]  Jianfeng Chen,et al.  A service flow management strategy for IEEE 802.16 broadband wireless access systems in TDD mode , 2005, IEEE International Conference on Communications, 2005. ICC 2005. 2005.

[8]  Steven J. Vaughan-Nichols,et al.  Achieving Wireless Broadband with WiMax , 2004, Computer.

[9]  Sunghyun Choi,et al.  Adaptive Power Saving Strategies for IEEE 802.16e Mobile Broadband Wireless Access , 2006, 2006 Asia-Pacific Conference on Communications.