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An Efficient Uplink Scheduling Algorithm with Variable Grant-Interval for VoIP Service in BWA Systems
- Issue Date
- Oct-2008
- Publisher
- Oxford University Press
- Keywords
- uplink scheduling algorithm; AMR speech codec; IEEE 802.16e/m system; resource management
- Citation
- IEICE Transactions on Communications, v.E91B, no.10, pp 3379 - 3382
- Pages
- 4
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEICE Transactions on Communications
- Volume
- E91B
- Number
- 10
- Start Page
- 3379
- End Page
- 3382
- ISSN
- 0916-8516
1745-1345
- Abstract
- This letter proposes an efficient uplink, scheduling algorithm for the voice over Internet protocol (VoIP) service with variable frame-duration according to the voice activity in IEEE 802.16e/m systems. The proposed algorithm dynamically changes the grant-interval to save the uplink bandwidth. and it uses the random access scheme when the voice activity changes from silent-period to talk-spurt. Numerical results show that the proposed algorithm can increase the VoIP capacity by 26 percent compared to the conventional extended real-time polling service (ertPS).
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Related Researcher
- Cho, Sung hyun
- ERICA 소프트웨어융합대학 (ERICA 컴퓨터학부)