Manoj Duhan

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Mobile Ad-hoc Network one of the prominent area for the researchers and practitioners in assorted domains including security, routing, addressing and many others. A Mobile Ad-hoc Network (MANET) refers to an autonomous group or cluster of mobile users that communicate over relatively bandwidth constrained wireless links. Mobile ad hoc network refers to the(More)
Code Division Multiple Access (CDMA) is the predominant multiple access technology for future generation wireless systems. The performance of CDMA based wireless systems is largely based on the characteristics of user specific spreading codes. The objective of this paper is to highlight the various factors affecting the choice of these spreading codes and(More)
Mobile ad hoc networks (MANETs) consist of a collection of wireless mobile nodes which dynamically exchange data among themselves without the reliance on a fixed base station or a wired backbone network. All nodes are mobile and can be connected dynamically in an arbitrary manner. All the nodes of these networks behave as routers and take part in discovery(More)
We present a technique to improve embedding capacity of Image using digital logic in this paper. We have applied digital logic operations on two equal halves of an image row to derive the hidden information. We have also compared the change in image using proposed technique and digital logic gate technique. Change in Image using proposed technique is half(More)
Multicarrier CDMA is being proposed as a predominant candidate for future generation wireless mobile communication. One of the major drawbacks of a CDMA system coupled with multicarrier modulation is high value of PAPR due to multicarrier transmission. This PAPR can be effectively controlled through proper selection of a spreading code. The objective of(More)
Two-ray ground reflection model and FRIIS free-space model have been widely used as the propagation model to investigate the performance of ad hoc networks. But two-ray model is too simple to represent a real world network, that is, it neglects the obstacles of a propagation environment. The radio wave propagation model has a strong impact on the results of(More)
A mobile ad hoc network (MANETs) is a self-organizing system of mobile nodes that communicate with each other via wireless links with no fixed infrastructure or centralized administration such as base station or access points. MANETs nodes can communicate directly if they are in each other transmission range; else the relay nodes are forwarding the packets(More)