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Special Graduate Schools
Graduate School of Information and Communication Technology
Department of Information and Communication
3. Theses(Master)
무선 센서 네트워크에서의 에너지 효율적인 MAC 프로토콜에 관한 연구
- Alternative Title
- Suh, Changsu
- Author(s)
- 서창수
- Alternative Author(s)
- Suh, Changsu
- Advisor
- 고영배
- Department
- 정보통신전문대학원 정보통신공학과
- Publisher
- The Graduate School, Ajou University
- Publication Year
- 2006-02
- Language
- eng
- Alternative Abstract
- This thesis studies the main characteristics of Wireless Sensor Networks (WSN), especially 'the issue of energy efficiency' in the wireless MAC layer, and proposes three new MAC protocols. These are named as TEEM (Traffic aware, Energy Efficient MAC), MAC-CROSS and LE-MAC (Latency and Energy aware MAC) protocols, respectively. The first scheme (TEEM) makes the active duration adaptive by utilizing the two novel approaches of 'adaptive listen period' and 'RTS piggybacking' and hence achieves a significant decrease in power consumption. The second scheme (MAC-CROSS) can solve the 'compulsory wake-up' problem by using a cross-layer concept between MAC and routing layers. Finally, the last scheme (LE-MAC) supports the balance of the energy consumption and data latency in wireless sensor networks. By being studies on NS2 simulation environments and being implemented on real sensor network test-beds with Motes sensors, the proposed three schemes are proved to be improved in terms of energy efficiency.
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