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Ultra wideband (UWB) low-noise amplifiers (LNA) are one of the key features in modern radiofrequency and microwave receivers. This paper presents an enhanced 3-7 GHz common-source LNA in 130 nm CMOS technology. Coupled to an inverse Tchebycheff band-pass filter, the proposed system led to a high gain while reducing the noise distribution and improving the amplifier linearity. Indeed, with a power...
One of the most important routing protocols used in ad hoc networks is AODV. This protocol is a reactive protocol that searches routes only when they are needed. It always exchanges control packets between neighbor nodes for routing. For reduction of control overheads and bandwidth consumption and make AODV usable for VANET, we have eliminated route discovery phase by restricting neighborpsilas distance...
VANET is new generation of ad hoc networks that implement between vehicles on a road. Because of high mobility, routing in VANET has more problems than MANET. Thereby, in this paper we propose a modification on AODV as MANET routing protocol to make it adaptive for VANET. When a node is mobile, it has three mobility parameters: position, direction and speed. In our method, we have used direction as...
Background Anterior abdominal wall fibroid are uncommon and could be a cause of pain and discomfort. Very few cases have been reported in the literature but none in our region. Case presentation We present an uncommon case of a 31 year old para 2+2 trader from the Itsekiri tribe of the Niger Delta region of Nigeria who presented with a one year history of a periumbilcal mass, had surgical removal...
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