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Association for Computing Machinery

Articles Tagged: Self-organizing autonomic computing

Articles & Features

Autonomous infrastructure for a suckless internet

SECTION: Features

Autonomous infrastructure for a suckless internet

How can we promote an internet that respects human rights? Investing in autonomous infrastructure built and operated by politically motivated techies, who put their skills at the service of the public interest, may be the answer.

By Stefania Milan, July 2018

PDF | HTML | In the Digital Library

Finding the edge: Art and automation

COLUMN: Letter from the editors

Finding the edge: Art and automation

By Jennifer Jacobs, April 2018

PDF | HTML | In the Digital Library

A distributed security scheme for ad hoc networks

In an ad hoc wireless network where wired infrastructures are not feasible, energy and bandwidth conservation are the two key elements presenting challenges to researchers. Limited bandwidth makes a network easily congested by the control signals of the routing protocol. Routing schemes developed for wired networks seldom consider restrictions of this type. Instead, they assume that the network is mostly stable and that the overhead for routing messages is negligible. Considering these differences between wired and wireless network, it is necessary to develop a wireless routing protocol that limits congestion in the network [1, 5, 8, 9, 10, 11].This paper proposes minor modifications to the existing Ad hoc On Demand Vector (AODV) routing protocol (RFC 3561) in order to restrict congestion in networks during a particular type of Denial of Service (DoS) attack. In addition to this, it incurs absolutely no additional overhead [4]. We describe the DoS attack caused due to Route Request (RREQ) flooding and its implications on existing AODV-driven Mobile Ad hoc Networks (MANET) [2, 14]. To combat this DoS attack, a proactive scheme [12] is proposed. We present an illustration to describe the implications of RREQ flooding on pure AODV and the modified AODV protocols. To quantify the effectiveness of the proposed scheme, we simulated a DoS [6] attack in a mobile environment and study the performance results.

By Dhaval Gada, Rajat Gogri, Punit Rathod, Zalak Dedhia, Nirali Mody, Sugata Sanyal, Ajith Abraham, September 2004

PDF | HTML | In the Digital Library