CHAPTER 22 Interworking between Wireless Local Area Networks and 3G Wireless Wide Area Networks
22.1 Introduction
Wireless local area networks (WLANs) are subjected to interference because of their operation in the unlicensed spectrum. WLANs’ coverage ranges from about 30 to 300 m. Therefore, they are suitable only in high-density areas and thus not able to provide ubiquitous coverage. WLAN technology is relatively inexpensive and quick to deploy. Although WLANs were originally designed to extend LANs in corporate environments, they are becoming increasingly popular to provide IP connectivity in residential, small office home office (SOHO), and campus environments. A new phenomenon in populated areas has emerged to deploy WLANs in public hotspots ...
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