The difficulty of maximizing the lifetime in directional sensor networks has gained increasing attention recently. Most of the existing studies are focused on d
In the design of passive Radio frequency(RF) tags baseband processor, subthreshold timing and wide-range-Process, voltage and temperature(PVT) variation problems are the bottlenecks to extend the tags
Once a disk of storage system is failed,RAID mechanism will reconstruct to keep the reliability.The reconstruction leads to a sharp deterioration in I/O perform