Integrated Uplink Scheduling Proposal Using BRUSC Header for Multiple VoIP CODECs in M-WiMAX

Author

Alkadhi, Farouk Y M ; Tu, Jun ; Liu, Zheng ; Dai, Jufeng

Author_Institution

Sch. of Electron. Inf. Eng., Tianjin Univ., Tianjin, China

fYear

2010

fDate

18-21 April 2010

Firstpage

1

Lastpage

6

Abstract

Based on considering the CODEC frame duration, this paper proposes a superior uplink scheduling algorithm that can efficiently support multiple DTX VoIP CODECs over M-WiMAX, and be able to facilitate the uplink resource wastes during silence period and optimize the system VoIP capacity. The BS uplink resource allocation procedure is planned and adapted according to the reserved bit in the Bandwidth Request and Uplink Sleep Control (BRUSC) header of IEEE802.16e, which indicates the voice activity of each voice user. The performance evaluation is designed to compare between the conventional algorithms (i,e., UGS, rtPS and ertPS) and the proposed algorithm. Numerical validations verify the proficiency of the proposed algorithm in term of resource utilization, total throughput and increment of system capacity.

Keywords

Internet telephony; WiMax; codecs; mobile computing; Bandwidth Request and Uplink Sleep Control header; IEEE 802.16; M-WiMAX; UGS; ertPS; integrated uplink scheduling proposal; multiple DTX VoIP CODEC; resource utilization; rtPS; total throughput; Algorithm design and analysis; Bandwidth; Codecs; Communications Society; Proposals; Quality of service; Resource management; Scheduling algorithm; Sleep; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference (WCNC), 2010 IEEE

Conference_Location

Sydney, NSW

ISSN

1525-3511

Print_ISBN

978-1-4244-6396-1

Type

conf

DOI

10.1109/WCNC.2010.5506293

Filename

5506293