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Information Technology has been one of the most encouraging research areas throughout the globe over the past decades. The impact and applications of Information Technology on diverse fields such as industry, business, resource monitoring, resource management, rural development, health care, education and even entertainment have generated a lot of interest worldwide. With this thought, the Department...
This paper discusses a design methodology for developing simple yet robust coastal surveillance application for tracking maritime objects in multi sensor environment. Hierarchical and distributed data processing architecture has been discussed. A linear Kalman estimator is used for target state estimation. A novel data association approach based on divide and conquer paradigm has been proposed. Track...
Sensors are used for tracking objects, surveilling a region/territory, monitoring health and environmental parameters. Coverage problem in sensor network ensures monitoring a given region fully or partially. There are various definitions to measure the quality of coverage depending on its applications. Barrier coverage is a type of coverage, which ensures all paths that cross the boundary of a region...
Conflict-free real-time query scheduling is one of the difficult tasks in Wireless Sensor Networks (WSNs). To accommodate this claim, we propose a Conflict-free Query Scheduling Approach (CQS) in WSNs. CQS works with three new schedulers, a Non-preemptive Conflict-free Query Scheduler(NCQS), Pre-emptive Conflict-free Query Scheduler (PCQS), and Advanced Conflict-free Query Scheduler (ACQS). Our simulation...
In this report, we point out on a system in which secondary user (SU) transmitter communicates with a SU receiver via a secondary relay (SR) under the interference from multiple primary users (PUs). Power allocated to SU transmitter on the basis of two constraints of PU, viz., outage threshold and outage transmission rate. In this case, performance of PU does not degrade due to these tolerable constraints...
An efficient way of solving the K-terminal network reliability measure of a directed/undirected graphs using the method of ROBDD have been presented. In this paper, the breadth first search traversal order to enumerate the minimal paths and sum of disjoint products approach has been used to solve the probability calculation for K-vertices of the given network.
In Wireless Sensor Network (WSN) sensor nodes are energy constrained. The network is partitioned into segments due to power depletion or node failure. This requires the deployment of additional nodes / mobile actuators in order to restore network connectivity. In order to reduce the energy depletion of the network and to simplify the design of routing protocols and topology control algorithms Connected...
Multicasting can be done in two different ways: source based tree approach and shared tree approach. Protocols such as Core Based Tree (CBT), Protocol Independent Multicasting Sparse Mode (PIM-SM) use shared tree approach. Shared tree approach is preferred over source-based tree approach because in the latter construction of minimum cost tree per source is needed unlike a single shared tree in the...
Surveillance systems plays a major role in our daily lives, business. Traditional systems are quite costly and mainly designed for commercial uses mostly. Whereas those system suffers lack of memory, computational intelligence and power utilisation factors. Even a lot of work has been done in concern to video surveillance. But still a cost effective, stable, low power, customised development is in...
A novel dynamic clustering based cooperative spectrum sensing (CSS) scheme with improved energy detectors (IEDs) has been studied for a cognitive radio (CR) network. A novel expression for dynamic clustering is developed considering Rayleigh faded sensing (S) and reporting (R) channels. The missed detection probability, total error probability are considered as performance metrics and studied with...
In wireless sensor networks, a fundamental research issues in designing a protocol is how to minimize energy consumption and prolong the network lifetime, while ensuring the required spatial coverage as well as connectivity. In this paper, we present an efficient coverage and connectivity aware data gathering (ECCDG) protocol for periodic data gathering applications which ensure sufficient coverage...
Reliable message transmission through multi-hoping in wireless network is emerging area of research. It is very difficult if nodes move with high speed. A wireless Network category in three ways Mobile Ad-hoc Network (MANET), Static Ad-hoc Network (SANET) and Vehicular Ad-hoc network (VANET) in this VANET required sufficient research. VANET is having a positive approach to get better management and...
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