An Energy Saving Based Uplink Scheduling Algorithm for VoIP Services in IEEE 802.16 Systems

Author

Wang Lilei ; Xu Huimin

Author_Institution

Sch. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun., Beijing

fYear

2008

fDate

12-14 Oct. 2008

Firstpage

1

Lastpage

4

Abstract

There are several uplink scheduling algorithms in IEEE 802.16 systems, such as unsolicited grant service (UGS) and real-time polling service (rtPS), which can be used for voice over IP (VoIP) services. But these algorithms have a problem of energy wasting. To solve this problem, we propose an energy saving based uplink scheduling algorithm for VoIP services. Then we analyze the performance of the proposed algorithm and carry out the simulation under different cases. Through simulation results, we can find that our proposed algorithm decreases energy consumption largely. At the same time, other performance, such as throughput and delay, is close to that of Lee´s algorithm.

Keywords

Internet telephony; WiMax; broadband networks; energy conservation; scheduling; IEEE 802.16 systems; VoIP services; WiMax; broadband networks; energy saving; real-time polling service; unsolicited grant service; uplink scheduling; voice-over-IP; Algorithm design and analysis; Analytical models; Codecs; Delay; Energy consumption; Internet telephony; Performance analysis; Power engineering and energy; Real time systems; Scheduling algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on

Conference_Location

Dalian

Print_ISBN

978-1-4244-2107-7

Electronic_ISBN

978-1-4244-2108-4

Type

conf

DOI

10.1109/WiCom.2008.806

Filename

4678714