Self-Organising Node Address Management in Ad Hoc Networks

Abstract

Abstract. Whilst much effort has been put into the creation of routing algorithms to handle all sorts of mobility scenarios in ad-hoc networks, other fundamental issues, such as the addresses used by nodes, haven't been dealt with adequately. This addressing problem has recently attracted increased attention and a few proposals have been made, though often these schemes only work in limited scenarios. In this paper we present an autoconfiguration protocol designed to work in a mobile ad hoc network (MANET). The scheme allows joining nodes to dynamically obtain addresses, and has been designed to efficiently manage addressing, and to handle such scenarios as the merging and partitioning of networks. We discuss an implementation used within an emulated environment and a real self-organising ad-hoc network.

Secure Routing Proposals in Manets: A Review

“…Such attacks can be classified into passive attacks, like eves-dropping, overhearing etc. Some basic constraints [7], [8], [9] and open challenges security aspects in MANETs may be describes as below:…”

Facilitating Real-Time Applications in VANETs Through Fast Address Auto-Configuration

“…Existing VANET literature bypasses the address configuration task by assuming that nodes are configured a priori. However, this issue cannot be skipped so easily since neither address autoconfiguration protocols for traditional fixed networks nor solutions proposed for regular ad-hoc networks can be directly applied to VANETs [6][13] [12][10] [14] [3]. VANETs, in fact, have unique characteristics that require a specific analysis of the problem [9]: very high mobility, theoretically infinite extension, absence of a centralized control, and intermittent connectivity through the sparse infrastructure.…”

“…Some nodes in the network, called Leaders, maintain lists of addresses in use and assign new addresses to nodes that join the network. Obviously, this architecture needs efficient network merging/splitting systems with dynamic Leader dismissal/election and duplicate addresses verification when two Leaders become close to each other [12]. Moreover, especially in VANETs, communication among Leaders can be complicated by node mobility, which can break the communication path, and by the fact that such path cannot be guaranteed to be free of duplicate addresses.…”

Routing in MANETs with address conflicts

“…Thus far, only a handful of address allocation mechanisms (e.g., [17][8] [19] [16]) have considered the aforementioned issues. Moreover, none of these works consider mechanisms that would avoid renumbering by allowing nodes to continue to function with their existing addresses in the event of an address conflict.…”

“…A common solution to the aforementioned problems is to associate unique identifiers with each address [16] [19] [17], hence enabling nodes to distinguish IP or MAC addresses using the identifier. The identifier itself can be a randomly generated number or a cryptographical key.…”