10
|
Chapter 2. Wireless Network Performance
Virgin Media Wireless USB Adapter WNDA3200
modem connection provides a downstream throughput of about 1 to 3 megabits per
second (Mbps). Newer technologies such as ADSL2+ and Fiber to the Home (FTTH) l
increase the connection speed to tens of Mbps.
•
Wireless
A high-speed wireless router can provide a wireless data throughput of up to 300 Mbps
with excellent range and coverage. WPA and WPA2 wireless security are extremely
strong.
To get the best performance, connect to networks that use newer routers. Your wireless-N
USB adapter will work with older 802.11b and 802.11g routers, but the use of these older
wireless technologies in your network can result in lower throughput overall. In addition,
many older wireless products do not support the latest security protocols, WPA and
WPA2.
•
Powerline
You can use Powerline connections for rooms that are upstairs or too far from your router
for a good wireless connection. NETGEAR’s Powerline HD products deliver up to 200
Mbps to any outlet. Data transmissions are encrypted for security, and you can set up a
network password to prevent neighbors from connecting.
•
Wired Ethernet
Wired Ethernet remains a good choice for speed, economy, and security. Gigabit Ethernet
can extend up to 100 meters.
Note:
Actual data throughput will vary. Network conditions and
environmental factors, including volume of network traffic, building
materials and construction, and network overhead, can lower actual
data throughput rate.
Assessing Your Network Speed Requirements
Because your Internet connection is likely to operate at a much lower speed than your local
network, faster local networking technologies might not improve your Internet experience.
However, many emerging home applications require high data rates. For example:
•
Streaming HD video requires 10 to 30 Mbps per stream. Because latency and packet loss
can disrupt your video, plan to provide at least twice the capacity you need.
•
Streaming MP3 audio requires less than 1 Mbps per stream and does not strain most
modern networks. Like video, however, streaming audio is also sensitive to latency and
packet loss, so a congested network or a noisy link can cause problems.