An Efficient Uplink Scheduling Algorithm with Variable Grant-Interval for VoIP Service in BWA Systems

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概要

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• 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).

• 2008-10-01

著者

• Oh Sung-min

  School Of Electrical And Computer Engineering Ajou University

• Kim Jae-hyun

  School Of Electrical And Computer Engineering Ajou University

• CHO Sunghyun

  Division of Information Technology, Hansei University

• KWUN Jonghyung

  Telecommunication R&D Center, Samsung Electronics

• Cho Sunghyun

  Gyeongsang National Univ. Jinju Kor

• Kwun Jonghyung

  Telecommunication R&d Center Samsung Electronics

• Kim Jae-Hyun

  School of Electrical & Computer Engineering AJOU University

関連論文

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