نتایج جستجو برای: wireless sensor networks

تعداد نتایج: 618904  

Topology construction and topology maintenance are significant sub-problems of topology control. Spanning tree based algorithms for topology control are basically transmission range based type construction algorithms. The construction of an effective backbone, however, is indirectly related to the placement of nodes. Also, the dependence of network reliability on the communication path undertak...

The Internet of Things (IoT) is an emerging phenomenon in the field of communication, in which smart objects communicate with each other and respond to user requests. The IoT provides an integrated framework providing interoperability across various platforms. One of the most essential and necessary components of IoT is wireless sensor networks. Sensor networks play a vital role in the lowest l...

2013
N. Prasad

Wireless sensor networks may want to continuously extract data from other networks. In those situation energy efficient data collection and aggregation in wireless sensor networks is always a challenging issue present days. For example network topology construction and interferences also causes significant effects. For providing more efficiency in wireless sensor networks, In this proposed powe...

Journal: :CoRR 2011
Hichem Sedjelmaci Mohammed Feham

Network security is one of the major concerns of studies have been conducted on the intrusion detection system. Cluster-based Wireless A novel hybrid intrusion detection method method for wireless sensor networks. Accepted papers & International Conference on Advanced Wireless, Paper title:A Low-Complex Coverage Eligibility Algorithm For Wireless Sensor Networks. Paper title: A Novel Cluster He...

Journal: :Communications and Network 2011
Arun Kumar Kai Juan Wong

Broadcasting is a fundamental operation in any wireless networks, more so in wireless ad hoc sensor networks, where each sensor node has limited transmission range and battery power. Although broad-casting in wireless ad hoc sensor networks has many advantages but it can cause serious problems like—broadcast storm, which could cause a lot of contention, redundant, retransmission, collision and ...

2009
GORAN MARTINOVIC JOSIP BALEN DRAGO ZAGAR

Wireless sensor networks have a wide range of applications and can be used for various purposes in different environments. Wireless sensors are small and they are mostly using battery supplies. Communication, sensing and computing have the most influence on performance and power consumption of wireless sensor networks. In this paper we describe layered architecture of wireless sensor network pr...

In wireless sensor networks (WSNs)‎, ‎sensor nodes have limited resources with regard to computation‎, ‎storage‎, ‎communication bandwidth‎, ‎and the most important of all‎, ‎energy supply‎. ‎In addition‎, ‎in many applications of sensor networks‎, ‎we need to send images to a sink node‎. ‎Therefore‎, ‎we have to use methods for sending images in which the number and volume of packets are optim...

2013
Gyanendra Prasad Joshi Seung Yeob Nam Sung Won Kim

A cognitive radio wireless sensor network is one of the candidate areas where cognitive techniques can be used for opportunistic spectrum access. Research in this area is still in its infancy, but it is progressing rapidly. The aim of this study is to classify the existing literature of this fast emerging application area of cognitive radio wireless sensor networks, highlight the key research t...

In wireless sensor networks, optimal consumptionof energy and having maximum life time are important factors. In this article attempt has been made to send the data packets with particular reliability from the beginning based on AODV protocol. In this way two new fields add to the routing packets and during routing and discovering of new routes, the lowest remained energy of nodes and route tra...

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