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DOT NET IEEE 2012 Abstracts DOMAIN - MOBILE COMPUTING

MODELING AND PERFORMANCE EVALUATION OF BACKOFF MISBEHAVING NODES IN CSMA/CA NETWORKS Backoff misbehavior, in which a wireless node deliberately manipulates its backoff time, can induce significant network problems, such as severe unfairness and denial-of-service. Although great progress has been made towards the design of countermeasures to backoff misbehavior, little attention has been focused on quantifying the gain of backoff misbehaviors. In this paper, to assess the gain that misbehaving nodes can obtain, we define and study two general classes of backoff misbehavior: continuous misbehavior, which keeps manipulating the backoff time unless it is disabled by countermeasures, and intermittent misbehavior, which tends to evade the detection of countermeasures by performing misbehavior sporadically. Our approach is to introduce a new performance metric, namely order gain, to characterize the performance benefits of misbehaving nodes in comparison to legitimate nodes in CSMA/CA-based wireless networks. We derive the order gains of both continuous andintermittent misbehaviors and further investigate the relation between our metric, order gain, and the throughput gain for a misbehaving node. We show that in IEEE 802.11 networks, the throughput ratio of a backoff misbehaving node to a legitimate node is either bounded above or proportional to the number of legitimate nodes.

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NCCT Smarter way to do your Projects

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DOT NET IEEE 2012 Abstracts We use both simulations and experiments to validate our theoretical analysis and to further demonstrate the impact of a wide range of backoff misbehaviors on network performance in CSMA/CA-based wireless networks

NCCT, 109, 2 nd Floor, Bombay Flats, Nungambakkam High Road, Nungambakkam, Chennai – 600034. Near Ganpat Hotel, Above IOB, Next to ICICI Bank Projects in Java * J2EE * J2ME * .NET * ASP.NET * VB.NET * C# * Android * NS2 * Matlab * Embedded Systems


NCCT Smarter way to do your Projects

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DOT NET IEEE 2012 Abstracts Abstract of the Project

Existing System Proposed System Advantages Architecture Diagram Modules Algorithms used

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NCCT Smarter way to do your Projects

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DOT NET IEEE 2012 Abstracts HARDWARE REQUIREMENTS System

: Pentium Dual Core Processor + Board

RAM

: 2 GB

Hard Disk

: 200 GB

Monitor

: 17” Color Monitor

Mouse

: Logitech Mouse

Keyboard

: Multimedia Keyboard

SOFTWARE REQUIREMENTS O/S

: Windows XP / Windows 7

Language

: ASP.NET, C#.

Database

: SQL Server 2005

NCCT, 109, 2 nd Floor, Bombay Flats, Nungambakkam High Road, Nungambakkam, Chennai – 600034. Near Ganpat Hotel, Above IOB, Next to ICICI Bank Projects in Java * J2EE * J2ME * .NET * ASP.NET * VB.NET * C# * Android * NS2 * Matlab * Embedded Systems

Dot NET-Mobile Computing -- MODELING AND PERFORMANCE EVALUATION OF BACKOFF MISBEHAVING NODES IN CSMA  
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