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A sub-sampling 3-bit 4.25GS/s flash ADC with a novel averaging termination technique — asymmetric spatial filter response — in 0.13μm CMOS for impulse radio ultra-wideband (IR-UWB) receiver is presented. In this design, a track and hold (T/H) circuit with self-biased buffer is used to compensate the degradation in amplitude when frequency increases to giga Hz. Averaging termination technique using...
Increasing throughput of wireless network is a challenging problem. This paper proposes a new MAC protocol named simple single radio multi-channel protocol (SSMP) which utilizes multi-channel to transmitting data simultaneously. Using SSMP each node has own channel status table (CST). The node selects transmitting channel with CST. Simulation results show that SSMP improves network throughput and...
Underwater Acoustic Sensor Networks (UW-ASNs) is of growing research interest. This paper gives description on underwater channel model. It overviews transmission schemes in data link layer and network layer, and simulates different transmission schemes. Finally, it offers comparison and guides for future development.
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