QoS packet-scheduling scheme for VoIP services in IEEE 802.16e systems

• Published in: Journal of communications and networks Vol. 11; no. 1; pp. 36 - 41
• Main Authors: Jang, Jaeshin, Lee, Jong-Hyup, Cheong, Seung-Kook, Kim, Young-Sun
• Format: Journal Article
• Language: English
• Published: Séoul Editorial Department of Journal of Communications and Networks 01.02.2009; Korean Institute of Communication Sciences; 한국통신학회
• Subjects: Access methods and protocols, osi model; Applied sciences; Base stations; Delay; Exact sciences and technology; extended real-time polling service (ertPS); IEEE 802.16 Standards; IEEE 802.16e; Mobile communication; Operation, maintenance, reliability; packet-scheduling; Quality of service; quality of service (QoS); Switching and signalling; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Teleprocessing networks. Isdn; Transmission and modulation (techniques and equipments); unsolicited grant service (UGS); 전자/정보통신공학; Performance evaluation; Wireless LAN; IEEE 802.16e; Base station; Wireless telecommunication; Mobile communication; Metropolitan area network; extended real-time polling service (ertPS); IEEE standards; Uplink; unsolicited grant service (UGS); Mobile radiocommunication; Packet switching; Polling; quality of service (QoS); Scheduling; packet-scheduling; Telecommunication system; Code division multiple access; Wireless network; Numerical simulation; Internet; Service quality; Simulator; Internet telephony
• ISSN: 1229-2370; 1976-5541
• DOI: 10.1109/JCN.2009.6388371

The IEEE 802.16 wireless metropolitan area network (WMAN) standard is designed to correct expensive communication costs in CDMA-based mobile communication systems and limited coverage problems in wireless LAN systems. Thus, the IEEE 802.16e standard can provide mobile high-speed packet access between mobile stations and the Internet service provider through the base station with cheap communication fees. To efficiently accommodate voice over IP (VoIP) services in IEEE 802.16 systems, an uplink quality of service packet-scheduling scheme is proposed, and its performance is evaluated with an NS-2 network simulator in this paper. Numerical results show that this proposed scheme can increase the system capacity by 100% more than in the unsolicited rand service (UGS) scheme and 30% more than the extended real-time polling service (ertPS) scheme, respectively.