University:
California State University, Northridge
Course:
COMP 528 | Mobile Computing
Academic year:

2016
Views:

162

Pages:

14
Author:

Joaquin Spears

10 CHAPTER Wireless, Mobile Computing, and Mobile Commerce 1 10.2 Wireless Computer Networks and Internet Access • Short-Range Wireless Networks • Medium-Range Wireless Networks • Wide-Area Wireless Networks Short-Range Wireless Networks • Bluetooth – Bluetooth 1.0 – Bluetooth 4.0 • Personal Area Network • Ultra-Wideband • Near-Field Communications Medium-Range Wireless Networks • Wireless Fidelity (Wi-Fi) • Wireless Mesh Networks Wireless Fidelity (Wi-Fi) • • • • • • • • Wireless Access Point Hotspot IEEE Wi-Fi Standards Major Benefits of Wi-Fi Wi-Fi Direct MiFi Super Wi-Fi Wireless Mesh Networks IEEE Wi-Fi Standards • Institute of Electrical and Electronics Engineers (IEEE) WiFI Standards • 802.11a • 802.11b • 802.11g • 802.11n (b/g/n) • 802.11ac • 802.11 ad Major Benefits of Wi-Fi • Low cost • Ability to provide simple Internet access Three Factors Preventing Commercial Wi-Fi Market from Expanding: • Roaming • Security • Cost ’S ABOUT BUSINESS 10.2 • A Wi-Fi Network Provides Communications at the 2014 Winter Olympic Games 1. Describe why wireless communications were critical to the success of the 2014 Winter Olympic Games. Provide specific examples to support your answer. 2. What other potential problems did Avaya have to consider that were not mentioned in this case? Provide specific examples to support your answer. Wide-Area Wireless Networks • Cellular Radio • Generations of Cellular Technology Evolution • Wireless Broadband or WiMAX Figure 10.5: Smart Phone & GPS system Generations of Cellular Technology Evolution • • • • • • (1G) First generation (2G) Second generation 2.5G (3G) Third generation (4G) Fourth generation (5G) Fifth generation Wireless Broadband or WiMAX • Worldwide Interoperability for Microwave Access (WiMAX) • WiMAX = IEEE Standard 802.16 • Wireless access range of up to 31 miles • Data transfer rate of up to 75 Mbps • A secure system offering voice and video ’S ABOUT BUSINESS 10.3 • A Tiny Cellular Network for a Remote Tribe in Indonesia 1. Describe several advantages of the network for the villagers. 2. Describe several advantages of the network for the Indonesian government.

Wireless Computer Networks and Internet Access

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