Multicast routing in ad-hoc networks by exchange of multicast group update information and routing tree information among neighboring routers is disclosed. A router propagates multicast group update information based on the update information and the routing tree information. A router also determines whether to forward multicast data packets based on control information in the multicast data packets and the routing tree information.

 
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< Testing device

> Optimizing an integrated circuit layout by taking into consideration layout interactions as well as extra manufacturability margin

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