Sensor nodes in a wireless sensor network(WSN) are typically powered by batteries, thus the energy is constrained. It is our design goal to efficiently utilize
Hierarchical mobile IPv6(HMIPv6)introduces a mobility anchor point to reduce the signaling overhead and handoff latency. In this paper, we apply the matrix-anal
With the expansion of investment overseas , a large number of Chinese people work abroad , some work in rich countries and regions , but the majority work in po