Contemporary wireless multihop networks work much underneath their capacity because of the poor coordination among transmitting nodes. Cross-layer architectures offer a radical option by upholding participation among the numerous layers of the protocol stack. At the center of these architectures is the backpressure scheduling algorithm which accomplishes the system limit. XPRESS is throughput-optimal backpressure architecture ...

In this paper, the authors propose an advanced MIMO-OFDM (Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing) reconfigurable architecture along with companding transform. The reconfigurable architecture uses switching algorithm between MIMO diversity and special multiplexing which allows selecting the MIMO configuration and improves the BER. The major drawback of OFDM system is Peak to Average Power Ratio ...

Cognitive Radio (CR) systems are the upcoming technology in the wireless communication where they have to utilize their spectrum available in the best and the efficient way. The tasks to be covered in the CR technology are broadly classified into two categories. They are efficient utilization of the available spectrum and secondly energy efficiency in ...

A Mobile Ad-hoc NETwork (MANET) is a self-structure network of mobile routers connected by wireless link. The nodes are free to move randomly and independently. Ad-hoc networks suitable for emergency situations like natural or human made disasters, military conflicts, emergency medical situations etc. Major problem in a mobile ad-hoc network is constrains. In this paper, ...

Web usage mining the data mining techniques to extract exciting usage patterns from SNS data, in order to understand and serve the needs of users in an efficient manner. Usage data captures the origin and the identity of the user along with the browsing behavior at the social web site so that they can serve ...

Spam is one of the issues of the Internet which required attention the most especially on the social networking websites and that’s why spam detection is a very concerned issue. Although there are various issues related to the Internet but spam is the one which is faced by everyone who is using the Internet. There ...

In recent years smart antenna is a fast rising areas of communication systems. Smart antennas are especially aggressive of their applications in related fields such as Fourth Generation (4G) technologies and these are best suitable for multi carrier modulations. In this paper, contains main utilize of smart antennas in mobile communication that upgrades the capability ...

A Vehicular Ad hoc NETwork or VANET is a novel approach of intelligent transportation system technology which has received significant attention recently. Routing in VANETs is a challenging task due to network partitioning, high vehicular speed and city environment characteristics. These characteristics results in degraded performance in traditional routing protocols. Traditional routing protocols, addressing the ...

Delay Tolerance Network (DTN) is a network used in large time delays communications long distance such as space communications and used in an environment where there is no end to end path connectivity. The messages are delivered using store and forward mechanism. There exists a variety of different types of mobility models in DTN like ...

In many real time applications such as sensors monitoring systems, location based systems etc. data uncertainty is inherent. The uncertainty may occur as a result of evaluation errors. This uncertainty becomes a major issue while performing mining operations in the databases. Traditional mining methods are less efficient when dealing with uncertain databases. While considering uncertain ...