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Register a new userA Selective Survey on Key Distribution in Sensor Networks
دراسة استقصائية انتقائية على توزيع المفاتيح في شبكات الحساسات
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غسان شدود( باحث )
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تشكل إدارة المفاتيح في شبكات الحساسات اللاسلكية معضلة حقيقية، و ذلك بسبب غياب البنى التحتية الموثوق بها من جهة، و محدودية إمكانيات عقد الحساسات من جهة أخرى. نستعرض في هذا البحث الطرائق الحديثة المقترحة لإدارة المفاتيح في شبكات الحساسات اللاسلكية. نحدد أولاً بعض المشكلات التي تواجه إدارة المفاتيح. و نعرف بعد ذلك بعض المعايير للحلول الناجعة لمشكلات إدارة المفاتيح. نستكشف لاحقاً بعضاً من المنهجيات المقترحة في إدارية المفاتيح، و نحللها وفقاً للمعايير المقدمة. نناقش أخيراً بعض المشكلات المفتوحة للبحث.
Key management in Wireless Sensor Networks (WSNs) is an important issue due to the absence of trusted infrastructures, on one hand, and the limited resources of sensor nodes, on the other hand. This paper surveys some recent key management approaches in WSNs. It first identifies some of the problems that confront the key management. Then, it defines some criteria for viable solutions to key management problems. Next, it explores some of the proposed key management approaches, and analyzes them according to the presented criteria. Some open research issues are discussed.
References used
T. Abdelzaer et al. Handbook of Sensor Networks: Compact Wireless and Wired Sensing Systems. CRC Press, July 2004
K. Akkaya and Y. Mohamed. A Survey on Routing Protocols for Wireless Sensor Networks. Journal of Ad hoc Networks, 2003
K. Akkaya and M. Younis. An Energy- Aware QoS Routing Protocol for Wireless Sensor Networks. In Proceedings of the IEEE Workshop on Mobile and Wireless Networks (MWN 2003), Rhode Island, USA, May 2003
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Wireless sensor networks (WSNs) are often deployed by random bestrewing
(airplane bestrewing for example). A majority of nodes cannot obtain their coordinate
beforehand. Therefore, how to obtain the position information of unknown nodes, which is
called localization problem, has become a hot topic in WSN.
Without position information, WSN cannot work properly. Global Position System
(GPS) is the most extensive and mature position system at present. But because the nodes
usually have the shortcoming of high expenditure, large volume, high cost and require
settled basal establishment, therefore, the GPS is inapplicable for the low-cost selfconfigure
sensor networks, and also it is impossible to install GPS for each sensor node. In
this paper, we will study localization mechanisms (which is not based on GPS) used in
WSN, and will test the effectiveness of using MUSIC algorithm in determining the signal
arrival angel depending on the SDMA- technology and ESPAR antenna.
The location of wireless sensor nodes located in the center is necessary for applications
where information about the site is important information such as security, protection,
object tracking and other applications.
localization algorithms are c
lassified into two types: Range-based and Range-free. The
study focused on Range-free localization algorithms because they are less expensive in
terms of hardware requirements.
The MATLAB was used to simulate the algorithms, whose performance was evaluated by
changing the number of network nodes, the number of Anchor nodes, and the contract area
of communication in order to illustrate performance differences in terms of localization
error.
The results showed the superiority of the amorphous algorithm, achieving high localization
accuracy and lower cost for the number of Anchor nodes needed to achieve a small error.
Mobile Wireless Sensor Network (MWSN) is an emerging technology for attraction of
researchers with its research advantage and various application domains. Due to limited
resources of sensor nodes such as transmission power, communication capability
and
size of memory, data aggregation algorithms are the most practical technique that reduces
large amount of transmission in this network. Security is an important criterion to be
considered because, wireless sensor nodes are deployed in a remote or hostile
environment area that is prone to attacks easily. Therefore, security are essential issue
for MWSN to protect information against attacks.
In this research, we offered an algorithm of secure data aggregation in MWSN based on
pair-wise keys technology and hash function. We studied important parameters such as
execution time, end-to-end delay and number of storied keys. Results showed that
In this research we study some of the most Bio-inspired MAC
protocols widely used in WSNs. we select the protocols which
depends on ant colony optimization behavior (ACO), bee colony
optimization behavior (BCO) and particle swarm optimization.
Wireless Sensor Networks (WSNs) are often deployedrandomly;this makes the
positiondetermination of deployed nodes a very difficult issue, which is called localization
problem. The importance of node localization information becomes from the facilit
y of
routing operation and the network control, that makes the network works correctly.
Nowadays, Global Position System (GPS) is appeared as the most important position
system, but it is inapplicable for the low-cost self-configure sensor networks, and also it is
impossible to install GPS for each sensor nodebecause of high cost, large volume and high
complexity required of adding it to nodes, especially for large network.Therefore, a few
number of nodes may be configured with GPS.
In this paper,we will study the localization algorithmAd-hoc Positioning System
(APS) algorithmused inUnderwater WSN, andwill testthe effectiveness of usingitin
determining the node position based on the distance calculated by anchor nodes. These
nodes are the nodes which know their positions.
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