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An Efficient Uplink Scheduling Algorithm with Variable Grant-Interval for VoIP Service in BWA Systems
- Oh, Sung-Min;
- Cho, Sunghyun;
- Kim, Jae-Hyun;
- Kwun, Jonghyung
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1초록
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).
키워드
uplink scheduling algorithm; AMR speech codec; IEEE 802.16e/m system; resource management; AMR speech codec; IEEE 802.16e/m system; Resource management; Uplink scheduling algorithm
- 제목
- An Efficient Uplink Scheduling Algorithm with Variable Grant-Interval for VoIP Service in BWA Systems
- 저자
- Oh, Sung-Min; Cho, Sunghyun; Kim, Jae-Hyun; Kwun, Jonghyung
- 발행일
- 2008-10
- 권
- E91B
- 호
- 10
- 페이지
- 3379 ~ 3382
- 언어
- ENG
- 분량
- 4 페이지
- ISSN
- E 1745-1345
P 0916-8516