Netgear MP101 User's Guide download pdf (Page 44)

User’s Manual for the MP101 Digital Music Player

B-2 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.

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Netgear MP101 User's Guide Page 44