Design and Analysis of Low Noise Optimization Amplifier Using Reconfigurable Slotted Patch Antenna

Now a days, the communication between different nodes in a Mobile Ad hoc Network (MANET) is not guarded. Various encryption mechanisms are used to protect the communication between nodes. Link failures and packet dropping due to unfaithful nodes are becoming one of the main opposition for the trusted detection of malicious nodes. A failure can occur either due to channel errors or harmful nodes in network. These attacks may have the intention of modifying the routing protocol so that the data transmission through a specific node controlled by the attacker disturbs the network topology. Thus it deteriorates the performance of network. Mutual association of dropped packets is capitalized for synthesizing the suspicious nodes in MANET. The algorithm proposed is using an efficient cryptosystem with cipher text list validator scheme and a communal auditing scheme for the validation of certificate received from individual nodes. For constructing the framework, the proposed algorithm with five phases has a network setup phase, data routing phase, communal auditing phase, error node detection phase and a data receiver phase. This framework makes the MANET node build a safe routing topology by effectively judging the harmful nodes as well as the unfaithful information accepted from supplementary nodes.     

Investigation of CMOS Based Integration Approach Using DAI Technique for Next Generation Wireless Networks

Wireless Personal Communications - This research work investigates a CMOS based low noise amplifier (LNA) using differential active inductor with eight-shaped patch antenna for next generation...     

Triple Band Dual Polarized CPW-Fed Planar Monopole Antenna

Wireless Personal Communications - This article presents a novel, simple and planar design of a CPW-fed tri-band and dual polarized monopole antenna. The proposed structure includes inverted...     

Integrated amateur band and ultra-wide band monopole antenna with multiple band-notched

This paper presents the integrated amateur band and ultra-wide band (UWB) monopole antenna with integrated multiple band–notched characteristics. It is designed for avoiding the potential interference of frequencies 3.99 GHz (3.83 GHz–4.34 GHz), 4.86 GHz (4.48 GHz–5.63 GHz), 7.20 GHz (6.10 GHz–7.55 GHz) and 8.0 GHz (7.62 GHz–8.47 GHz) with VSWR 4.9, 11.5, 6.4 and 5.3, respectively. Equivalent parallel resonant circuits have been presented for each band-notched frequencies of the antenna. Antenna operates in amateur band 1.2 GHz (1.05 GHz–1.3 GHz) and UWB band from 3.2 GHz–13.9 GHz. Different substrates are used to verify the working of the proposed antenna. Integrated GSM band from 0.6 GHz to 1.8 GHz can also be achieved by changing the radius of the radiating patch. Antenna gain varied from 1.4 dBi to 9.8 dBi. Measured results are presented to validate the antenna performances.