Netgear Wireless Digital Music Player User Manual

Page of 48
User’s Manual for the MP101 Digital Music Player
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Wireless Networking Basics
Ad Hoc Mode (Peer-to-Peer Workgroup)
In an ad hoc network, computers are brought together as needed; thus, there is no structure or fixed 
points in the network -- each node can generally communicate with any other node. There is no 
access point involved in this configuration. This mode enables you to quickly set up a small 
wireless workgroup and allows workgroup members to exchange data or share printers as 
supported by Microsoft networking in the various Windows operating systems. Some vendors also 
refer to ad hoc networking as peer-to-peer group networking.
In this configuration, network packets are directly sent and received by the intended transmitting 
and receiving stations. As long as the stations are within range of one another, this is the easiest 
and least expensive way to set up a wireless network. 
Network Name: Extended Service Set Identification (ESSID)
An SSID is a 32 character (maximum) alphanumeric key identifying the name of the wireless local 
area network. Some vendors refer to the SSID as network name. For the wireless devices in a 
network to communicate with each other, all devices must be configured with the same SSID. In a 
setting where there is more than one wireless network, different wireless network names provide a 
means for separating the traffic. Any device you want to participate in a particular wireless 
network will need to use this SSID for that network. 
Wireless Channels
IEEE 802.11b wireless nodes communicate with each other using radio frequency signals in the 
ISM (Industrial, Scientific, and Medical) band between 2.4 GHz and 2.5 GHz. Neighboring 
channels are 5 MHz apart. However, due to the spread spectrum effect of the signals, a node 
sending signals using a particular channel will utilize frequency spectrum 12.5 MHz above and 
below the center channel frequency. As a result, two separate wireless networks using neighboring 
channels (for example, channel 1 and channel 2) in the same general vicinity will interfere with 
each other. Applying two channels that allow the maximum channel separation will decrease the 
amount of channel cross-talk, and provide a noticeable performance increase over networks with 
minimal channel separation.