unit 8 assignement
Freeman Stephens
November 11, 2014
IS4560
Unit 8 Discussion 1
Wireless technology has become an increasingly crucial part of today's world. From health care and retail to academia across the world, wireless systems are improving the rate and ease with which data is sent and received. Two specific examples of the wireless technology used today personally and professionally are local area networks (LAN) and personal area networks (PAN).
A wireless local area network, or LAN is a flexible data communications system implemented as an augmentation to, or an alternative for a, wired local area network. These networks rely on electromagnetic airwaves to transmit and receive over a defined area, usually a few hundred feet. (Yahoo-wireless) In most cases, a wireless transmitter will be connected directly to a wired land network using Ethernet cables. Once the network feed has been connected to the transmitter, and a constant power supply is established, a steady stream of radio, or infrared waves with be produced (both are electromagnetic waves). The vast majority of wireless LAN systems tend to rely on radio waves as the carries for their signals, because infrared waves tend to have a shorter distance at which they are able to transmit, and are more easily interrupted. Radio waves, or radio carriers as they are referred to, transfer data through modulations of the carrier signal. The addition of data to a radio carrier causes the signal to occupy more than a single frequency. Once data is imprinted onto the radio signal it is a simple reversal of the transmitting process that allows the information to be decoded by a receiving station. (Rho Wireless)
Radio waves offer another benefit to the wireless system in addition to their range. With radio signals it is possible for multiple carriers to exist in the same space at the same time without interfering with each other. The key to making this possible is variation of frequencies. As long as concurrent frequencies are no
November 11, 2014
IS4560
Unit 8 Discussion 1
Wireless technology has become an increasingly crucial part of today's world. From health care and retail to academia across the world, wireless systems are improving the rate and ease with which data is sent and received. Two specific examples of the wireless technology used today personally and professionally are local area networks (LAN) and personal area networks (PAN).
A wireless local area network, or LAN is a flexible data communications system implemented as an augmentation to, or an alternative for a, wired local area network. These networks rely on electromagnetic airwaves to transmit and receive over a defined area, usually a few hundred feet. (Yahoo-wireless) In most cases, a wireless transmitter will be connected directly to a wired land network using Ethernet cables. Once the network feed has been connected to the transmitter, and a constant power supply is established, a steady stream of radio, or infrared waves with be produced (both are electromagnetic waves). The vast majority of wireless LAN systems tend to rely on radio waves as the carries for their signals, because infrared waves tend to have a shorter distance at which they are able to transmit, and are more easily interrupted. Radio waves, or radio carriers as they are referred to, transfer data through modulations of the carrier signal. The addition of data to a radio carrier causes the signal to occupy more than a single frequency. Once data is imprinted onto the radio signal it is a simple reversal of the transmitting process that allows the information to be decoded by a receiving station. (Rho Wireless)
Radio waves offer another benefit to the wireless system in addition to their range. With radio signals it is possible for multiple carriers to exist in the same space at the same time without interfering with each other. The key to making this possible is variation of frequencies. As long as concurrent frequencies are no