In this paper, Multiband-OFDM UWB system based on IEEE 802.15.3a standard is studied and simulated with spatial, time and frequency (STF)coding scheme. The usin
Third generation (3G) packet switched WCDMA networks with high-speed downlink packet access (HSPDA) are currently being deployed worldwide to provide wireless b
In order to deal with the problems in P2P systems such as unreliability of the Service, security risk and attacks caused by malicious peers, a novel trust model
Image segmentation method based on level set model has wide potential application for its excellent seg-mentation result. However its complex computing restrict
Compared with the flat architecture in the design of sensor networks, the hierarchical architecture gains much attractive for the reason of scalability, managem
Energy efficiency and enhanced backbone capacity is obtained by exploiting the geometric orientation of cooperative nodes in wireless sensor network. The cooper