한국멀티미디어학회논문지 (Journal of Korea Multimedia Society)
- 제10권6호
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- Pages.745-753
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- 2007
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- 1229-7771(pISSN)
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- 2384-0102(eISSN)
Scheduling and Power Control Framework for Ad hoc Wireless Networks
- Casaquite, Reizel (Department of Information and Communications Engineering, Inje University) ;
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Yoon, Myung-Hyun
(Korea Electronics Technology Institute) ;
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Hwang, Won-Joo
(Department of Information and Communications Engineering, Inje University)
- 발행 : 2007.06.30
초록
The wireless medium is known to be time-varying which could affect and result to a poor network's performance. As a solution, an opportunistic scheduling and power control algorithm based on IEEE 802.11 MAC protocol is proposed in this paper. The algorithm opportunistically exploits the channel condition for better network performance. Convex optimization problems were also formulated i.e. the overall transmission power of the system is minimized and the "net-utility" of he system is maximized. We have proven that an optimal transmission power vector may exist, satisfying the maximum power and SINR constraints at all receivers, thereby minimizing overall transmission power and maximizing net-utility of the system.