Context and location aware wireless devices (CLAWD) protocol

Cheng, PY

Abstract

This thesis presents a proof of concept that context information can be
distributed in a heterogenous network environment by employing a network layer
protocol, i.e. the CLAWD (Context and Location Aware Wireless Devices) protocol.
The inspiration for the protocol was based on the idea that a wireless device should
know the location and context of other wireless devices within its local vicinity and
across wireless technology. The design of CLAWD protocol utilises a pro-active
broadcast approach with generic context information embedded in its Protocol Data
Unit (PDU). A CLAWD table for an individual device was also developed to
encapsulate context information of other wireless devices and their relationships,
consequently, it provides a reconstructable network topology. Wireless technologies
based on the IEEE 802.11 standard and the Bluetooth specification were chosen to
represent the independence of wireless technology, and the functionality of CLAWD
protocol was designed and developed using network simulator 2 (NS-2). The simulated
results indicate that conveying context and location information using CLAWD
protocol is feasible, and furthermore, this technique is readily adaptable over existing
wireless technologies. The research demonstrates a communication protocol which can
exchange context and location information amongst wireless devices in a ubiquitous
environment, and it provides a context service for various wireless devices at the
network layer.

Citation

Cheng, P. Context and location aware wireless devices (CLAWD) protocol. (Thesis). Salford : University of Salford

• Thesis Type: Thesis
• Deposit Date: Oct 3, 2012
• Award Date: Jan 1, 2009