Page 124 - DCAP311_DCAP607_WIRELESS_NETWORKS

Wireless Networks

Notes 2. When two or more hosts have to be connected with one another over ..............................
protocol and the distance is too long for a direct connection to be established, a wireless
repeater is used to bridge the gap.
3. An important property of an antenna is the ability to focus and shape the ..............................
power in space
4. The communication network established for the purpose of connecting computer devices
of personal use is known as the ..............................

5. Wireless LANs use .............................. waves to communicate.
6. A wireless ad hoc network is a .............................. type of wireless network
7. .............................. often refers to a mode of operation of IEEE 802.11 wireless networks.
8. The earliest wireless ad hoc networks were the .............................. networks

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Case Study Wireless IP

Introduction
What if field workers of a public utility had online access to inventory databases, work
orders, maps and other essential information from anywhere? What if crew chiefs had
access to e-mail and schedules without having to return to their offices? This is the vision
that the City of Seattle Public Utilities is making a reality in a project spearheaded by its
Information Technology Division. This case study shows not only the issues the utility
has faced and the solutions it has found; but, more importantly, how the lessons learned
can be applied by almost any organization today to make wireless data an effective and
successful tool.

Figure 1: The Utility Plans to Make Applications and Information on its Intranet
Available to Field Workers

The applications the utility is extending to its mobile workers include both work
management and office applications, a combination common to many organizations.
Developing wireless networking solutions requires special considerations. The utility
has identified effective approaches, is about to proceed with a pilot program, and has a
plan that accommodates the inevitable changes in applications, platforms and wireless
technologies.

Contd...

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