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Recent advancements in the area of telemedicine have focused on remote patient monitoring services as a new frontier in medical applications. The present work reports a 65‐nm complementary metal–oxide–semiconductor (CMOS)‐based transimpedance amplifier (TIA) in an optical radar system for non‐contact patient monitoring. A T‐shaped microstrip line (MSL) integrated with variable gain common source TIA using MSL peaking technique and off‐chip post‐amplification integration is a newly proposed architecture to achieve a ultra‐low noise, high dynamic range (DR) and high figure of merit over broadband than a traditional TIAs. First, the integrated T‐shaped MSL develops an additional resonant frequency that resonates with a photodiode capacitance improving the bandwidth performance at higher Q values. Second, the shunt MSL peaking technique that introduces an additional conjugate pole‐pair that cancels the effect of input capacitance helps to further improve the bandwidth of the TIA. Finally, an active feedback concept achieves a wide linear dynamic range enabling high TIA detectability. The proposed TIA realizes an impedance bandwidth of 770 MHz ranging from 7.12 to 7.89 GHz with a transimpedance gain of 105.1 dBΩ and ultra‐low input‐referred noise (IRN) density of 2.71 pA/√Hz. A high linear DR of 70 dB is achieved by employing a variable gain control scheme with a low group delay variation of 0.81 ns. The proposed work demonstrates a 1‐Gb/s data rate while a bit‐error rate less than 10−12 is achieved. The TIA consumes a power of 0.82 mW under the supply voltage of 1.2 V.

This study presents integration of complementary CMOS active feedback low noise amplifier with coplanar waveguide fed patch antenna for Wi‐Fi networks. The LNA design‐I, involves a cascode amplifier followed by active feedback common source amplifier offering wideband impedance matching with lowered parasitic losses. The inductor‐less feedback mechanism is used to nullify noise effect with extended bandwidth in the range of 2.2 to 5.8 GHz and a peak forward gain of 22.5 dB. It is implemented on agilent's advance design system using 45 nm CMOS process. The noise figure (NF) is approximately 2 dB while the stability factors µ and µ prime are well above 1 dB with IIP3 of about 15 dBm. The chip area is 0.57 x 0.57 mm2 under dc power supply of 1V while power consumption of 0.8 mW. A CPW fed antenna design‐II, achieves a wide band response similar to the bandwidth of LNA. The size of the fabricated antenna is calculated as 40 x 40 mm2. The peak gain is approximately 4.1 dBi at 3.9 GHz. The codesign‐III, proposes a receiver achieving a much wider band of 1.6 to 6 GHz with a gain of 16.5 dB and NF of 2.59 dB at 2.06 GHz. The codesign improves the system integration by reducing overall chip area and offers saving in the effective cost.

In the present days, the data on particular topic availability is huge and massive. The network virtualization plays very important role in the field of internet. For the Future Internet, Network Virtualization recognized a technology that overcome network ossification [18].Due to existence of the multiple confliction policies, services and alternations to the existing internet, there are some limitations occur according to the following features: robust routing, efficient search, scalability, decentralization, fault tolerances, trust and authentications. We need network virtualization, but the difficulties with the network virtualization are Instantiation means creating virtual networks, logistics means runs them; Management means manage them and Interactions. The creation of virtual network is very difficult and this is referred as future work. In this paper, we propose an algorithm to create virtual node and link for network virtualization. We have already some techniques to create the virtual network but they do not show the exact structure, which we require actually. In this paper, we proposed an algorithm to managing the virtual node and virtual link in any virtual network.

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