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    Volume-1 Issue-4

    Title: Performance /efficiency enhancement of Dynamic Source Routing Protocol in Wireless Mesh Networks

    Authors: Er.Pushpender Sarao, Prof. (Dr.) Sohan Garg and Prof. (Dr.) YashPal Singh

    Abstract: A Wireless Mesh Network is a collection of wireless nodes that form a network connection. There are several routing protocols like TORA, HEAT, AODV and DSR etc. which have been designed for providing communication among all the nodes in the wireless network. DSR is a reactive routing protocol and comfortable for unlimited number of nodes. This paper presents the comparison performance of DSR protocol with E-DSR (enhanced-DSR) protocol. In the enhanced approach of DSR, we improve the performance of Packet Delivery Ratio and throughput of the Wireless Mesh Networks. In E-DSR the destination a node recognizes first route request message (RREQ), it produces Turn-Around route request (TA-RREQ) message and deluges it to neighbor nodes within transmission range. E-DSR decreases route fail variation messages and gets very good performance as compared to Dynamic Source Routing protocol (DSR).

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    Title: Simscape Based Modeling and Simulation of Solar Cell Module with Partial Shading Effect

    Authors: Swati Singh, Sandeep Gupta and Lini Mathew

    Abstract: This paper presents a unique step by step procedure for simulation of a solar panel of given data sheet Simelectronics (Matlab/Simulink).One-diode equivalent circuit is employed in order to investigate I-V and P-V characteristics of a typical 36 W solar module. Its results indicated that the created simulation blocks in Simulink/Matlab are similar to actual PV modules. By the model, it is allowed to estimate behaviour of PV module with respect changes on irradiance intensity, ambient temperature and the other design parameters of the PV module. This model is also used to investigate the effect of partial shading on solar cell due to which PV module power is sharply reduced.

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    Title: Transformerless DC-DC Boost Converters? A Review

    Authors: Aditya Patel and Sandeep Gupta

    Abstract: This paper presents a review of transformerless High step up dc to dc converters. The renewable energy sources such as PV modules, fuel cells or energy storage devices such as super capacitors or batteries deliver output voltage at the range of around 12 to 70 VDC. In order to connect them to the grid the voltage level should be adjusted according to the electrical network standards in the countries. This review is focused on high efficiency step-up DC/DC converters with high voltage gain. A comparison and discussion of different DC/DC step-up topologies will be performed across number of parameters and presented in this paper.

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