頁籤選單縮合
| 題 名 | PH-MAC: A Periodically Hybrid MAC Protocol for Wireless Sensor Networks |
|---|---|
| 作 者 | Tan, Liansheng; Meng, Jintao; Li, Jie; Chao, Han-Chieh; | 書刊名 | 網際網路技術學刊 |
| 卷 期 | 8:4 2007.10[民96.10] |
| 頁 次 | 頁373-380 |
| 分類號 | 448.6 |
| 關鍵詞 | Sensor networks; MAC; TDMA; PH-MAC; |
| 語 文 | 英文(English) |
| 英文摘要 | This paper proposes a novel protocol termed periodically hybrid MAC protocol (PH-MAC) for wireless sensor networks. In order to save energy and maximize the throughput we introduce the channel access mechanism TDMA into the PH-MAC. PH-MAC divides the whole transmission process into various PH-MAC periods, and each PH-MAC period is further divided into synchronization period, allocation period and TDMA period. The synchronization period is used to synchronize the neighboring nodes to prevent long-time clock drift; the allocation period is used to allocate timeslots to every node for communication; and the TDMA period is used for data communication. We present the designing techniques of PH-MAC, and compare the performance of PH-MAC with the simplified 802.11 DCF (no duty cycle), S-MAC (fixed duty cycle) and T-MAC (dynamic duty cycle) through simulation. The simulation results show that, PH-MAC not only improve the throughput of the network, but also save nearly half of the energy that T-MAC usually consumes. |
本系統中英文摘要資訊取自各篇刊載內容。