EcoMAC 是為一種非常精簡且受到高度資源限制的無線感測器平台-Eco所設計的一種媒介存取控制協定，這種媒介存取控制協定相當的輕量和簡單卻又能達到很多複雜的功能，EcoMAC 不但能使Eco nodes能夠在ZigBee網路的基礎模式下扮演ZigBee的終端裝置同時又能讓Eco nodes在不同的基地台之間的實現快速換手的功能。我們所設計的協定由於是基於pulling風格的溝通方式，因此可以在不需要使用到代價高的同步化機制下確保沒有任何資料封包的碰撞。
EcoMAC另一個新穎的特色是連結品質的測量方法，它使得EcoMAC不需要透過接收訊號強度指示裝置的協助，就能偵測出Eco nodes與基地台間的連結訊號品質，根據這些連結訊號品質可以決定要換手到哪一個較適合的基地台。
透過我們的實驗，我們可以從實驗結果發現EcoMAC不只可以讓Eco nodes在基地台間達到快速換手的功能，同時又能支援高規模的網路架構。EcoMAC在僅需要額外增加極微小的複雜度下，就能實現了異質的無線感測器網路協定之間的溝通，並成功地結合了擁有強大且複雜的拓樸管理功能的完整ZigBee系統和非常精簡且簡單的Eco系統。

EcoMAC is a lightweight yet powerful medium access control (MAC) protocol for Eco, an ultra-compact, highly resource-constrained wireless sensor platform. EcoMAC enables Eco
nodes to appear logically as ZigBee end devices in infrastructure mode in a ZigBee network while supportng fast hand-off among base stations. Our protocol is collision-free without costly synchronization, thanks to pulling style communication. Another novel feature is the
Link Quality Measurement (LQM), which enables handoff decision without the use of receive signal strength indicator (RSSI). Experimental results show not only fast handoff between base stations but also high scalability. EcoMAC makes possible a heterogeneous wireless sensor network that combines the powerful topology of complex, full-ZigBee systems with the convenience of compact, lightweight Eco, all with minimal added complexity.

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