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Wireless networks have gained immense popularity in recent years. Though wireless networks have innumerous advantages over conventional wired networks, the borderless nature of wireless networks makes it prone to various felonious activities. In the context of network security, one of the most crucial vulnerabilities which have caused a serious global concern is the MAC Address Spoofing. MAC address...
The most fundamental issue in any wireless sensor network (WSN) design and/or analysis is the node deployment strategy and the number of nodes to be deployed. In this regard, a critical quality of service (QoS) parameter is network coverage which defines how well an area of interest is being monitored by a deployed network. The percentage coverage achieved for a given number of nodes in a predetermined...
One of the critical quality of service (QoS) parameter that needs consideration in any wireless sensor network (WSN) design is network area coverage which signifies the efficiency with which the network area can be covered by the deployed network. Node sensing models are used to predict the coverage fraction percentage for a given number of sensor nodes in a predetermined network area. Alternatively,...
Resource sharing in multi-core processors leads to performance variability due to cross-core interference between the cores. To minimize the effects of cross-core interference, dynamic cache partitioning can be applied at run-time. Cache partitioning can be applied to improve the utilization of the shared cache. However, this scheme must be scalable as the number of cores increases. The Lotka-Volterra...
In broadband wireless access network, continuous high speed data communication can be provided to mobile subscribers by well designed mobility management, where handover is a key element in maintaining air link to base station even in high velocity. When a mobile station changes its geographical position, it may also need to change its attachment point in the network in order to retain the quality...
Resourceful interference management focuses at achieving acceptable carrier-to-interference ratios in all active communication links in the system. In order to control the transmitter power, the carrier-to-interference (CIR) ratio of the receivers is needed to be balanced in a way that the overall capacity of the system is improved. The distributed power control algorithm earlier used by the satellite...
The focus of this paper is to outline the current state of MIMO network as a viable technique for increasing the performance of wireless communication systems in the near future. It also presents the results of a simulation environment designed to compare the Bit Error Rate (BER) performance capabilities of a wireless multi-user OFDM systems with and without the use of MIMO system. Simulations confirm...
Current distribution scenario reveals that the spectrum is allocated to the individual service providers who have the authority to control the access to the frequency spectrum traded by the governing authority of the region and the provider. As a consequence, the spectrum has now become a scarce resource. However, with the use of a Cognitive Radio, it becomes possible to observe the spectrum, so as...
Theoretical and experimental models have been considered for the prediction of the path loss in systems of mobile communications. This paper reviews Cost231-Walfisch-Ikegami model for prediction of path loss in mobile outdoor microcell environments. The proposed statistical model aligns in accordance to the measured data, considering roof height, road width as normal random variables. The characterization...
The performance of mobile ad hoc wireless networks has been primarily limited by the radio propagation channel. In the mobile radio environment, fading due to multipath delay spread impairs received signals. The aim of this paper is to propose a suitable mobile radio channel model based on a Tapped Delay Line (TDL) structure that not only examines the effect of various parameters on channel behavior,...
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