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This chapter only examines the different characteristics of 11a, 11b and 11g. The particular networking environment issues relevant to making a decision as to the make-up of specific wireless network architectures are discussed in
Don't forget post-deployment issues. Many organizations excel in designing their WLANs but give little thought to ongoing maintenance and troubleshooting. If your goal is to provide four-nines reliability, you'll probably need to invest in additional hardware and software. Read Chapter 8's section entitled "
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The Wireless Internet Service Provider (WISP) industry envisions a world where people routinely use high-speed wireless networks to access email, corporate networks, the Web, and more-whether they are traveling or going about their daily business in their local neighborhood. For the purpose of this book, the WISP industry encompasses all businesses (for-profit and non-profit) that
At the moment, the industry is struggling in its bid to find the right revenue model. As the reader will grow to understand, it will take time for the industry to determine the right revenue models for each segment of the industry. So while there is money to be made with Wi-Fi, there are still issues that need to be resolved. Until then, all within the WISP industry will run into difficulties when it comes to producing a consistent, positive revenue flow.
What exactly is a WISP? The term "wireless Internet service provider" or "WISP" is commonly used to refer to any entity that provides publicly available Internet access via a wireless local area network (WLAN), Wi-Fi or not. However, the
In an attempt to bring some kind of clarity, the author (and others) has divided the industry into
HotSpot Operator Layer.
This layer consists of the HotSpot providers. Companies in this layer maintain a network that venue
Aggregator Layer.
This layer is
Brand Layer. Companies within this layer typically partner with companies in the aggregator layer to offer Wi-Fi access to their already established customer base. Examples include T-Mobile, Sprint PCS, and AT&T Wireless.
Figure 11.1:
This graphic depicts the four layers within the WISP industry. As in the ISP space, the most successful companies will focus primarily on one industry layer, partner between the layers, and
Other
Let's now examine each of these layers more closely.
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