XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 1 Real-Time Communication on the Internet Exploring Wireless Networks Tutorial 6

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 2 Objectives Explore the history of the wireless Internet. Learn about different wireless networks. Locate wireless devices that let you access the Internet.

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 3 Evolution of Wireless Networks A wireless connection occurs when data is transferred to another location without the use of any wires.

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 4 Evolution of Wireless Networks Cell phones were one of the first wireless connections to transfer a person’s voice. This occurs over second-generation wireless systems, or 2G wireless.  Data transfer rates of up to 14.4 Kbps.

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 5 Evolution of Wireless Networks Over 60 major U.S. markets have new 3G wireless systems (third-generation wireless) in place.  Data transfer rates of up to 2 Mbps.  Receive web pages, play MP3 files, watch a video, make and receive phone calls, and send and receive and instant messages.

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 6 Evolution of Wireless Networks Many carriers have transformed and upgraded their existing networks by creating 2.5G wireless systems.  Data transfer rates of up to 144 to 384 Kbps.

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 7 Evolution of Wireless Networks The conversion from 2G to 3G wireless requires the carriers to invest in technology to make the change.  Bandwidth and cost are two obstacles for getting 3G wireless systems.

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 8 Future of Wireless Networks 3.5G wireless networks  network connections of up to 10 Mbps. In the next 10 years, Fourth-generation wireless networks (4G wireless)  network connection speeds of up to 100 Mbps  deliver high quality audio and video

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 9 Wireless Local Area Networking Wireless local area network (WLAN): a network in which devices use high frequency radio waves. Wireless fidelity (Wi-Fi): the interface between a wireless client and a base station. Wi-Fi operates in the 2.4 GHz radio spectrum  same used by cordless phones, garage door openers, microwave ovens, and other devices.

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 10 Wireless Local Area Networking Three of the most widely used standards:  a, b, and g. Access point: a hardware device with one or more antennae that permits communication between wired and wireless networks so wireless clients can send and receive data. Transfer rate: the speed at which data is transmitted from an access point (or base station) to the wireless device. Range: physical distance between the access point and the wireless device.  Within 200 feet.

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 11 Comparing Wireless Network Standards and Bluetooth

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 12 Wireless Local Area Networking wired local area networkwireless local area network 12 Access point WiFi enabled

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 13 Personal Area Networking Personal area networking: refers to the wireless network that you use to connect personal devices to each other. There are two major types of personal area networks: Infrared and Bluetooth.

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 14 Infrared Technology Using infrared technology, you can wirelessly beam information from one device to another compatible device using Infrared light waves. This technology is used with PDAs, notebook computers, printers, phones, and other peripheral devices. Disadvantage:  lack of software products.  devices must be compatible with each other.

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 15 Bluetooth Bluetooth: a technology that provides short-range radio links  between personal computers, handheld devices, wireless phones, headsets, printers, and other electronic devices  without the hassle of cords.

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 16 Comparing Wireless Network Standards and Bluetooth

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 17 Bluetooth Using Bluetooth technology  synchronize and share data between as many as eight Bluetooth compatible devices  within the specified range (up to 30 ft.)  at a rate of up to 1 Mbps. A collection of devices connected via Bluetooth technology is called a piconet.  A piconet can connect to eight devices at a time.

Bluetooth New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 18

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 19 Experience Bluetooth  Use a set of Bluetooth wireless stereo headphones to listen to your music from a variety of sources without the hassle and tangle of cords holding you back.  Stream audio files from your PC or laptop to your wireless stereo headphones and move about the room with freedom.

XP New Perspectives on The Internet, Sixth Edition— Comprehensive Tutorial 6 20 Experience Bluetooth  Free your hands and enjoy wireless freedom with a Bluetooth headset that’s enables users to place, receive, or end calls with one touch of the call button.  Stream the audio signal directly from your iPod to any compatible Bluetooth device