Cisco Cisco Aironet 1572EAC Oudoor Access Point 백서
Copyright © 2015 Miercom Cisco Aironet 1570 Access Point
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Both of these wireless clients were placed on a
table positioned at 300, 600 and 1,000-foot
distances from the access point. Multiple test
runs with multiple rotations from each location
were conducted to acquire the average
throughput
table positioned at 300, 600 and 1,000-foot
distances from the access point. Multiple test
runs with multiple rotations from each location
were conducted to acquire the average
throughput
representing
closest-to-accurate
real-world performance.
We observed in setting up the test bed that rain
and vehicular traffic or parked cars between the
clients and the AP could impact performance.
So, for consistency, all for-the-record testing
was conducted in dry weather and after hours
with no cars in the parking lot and minimum
vehicular traffic.
and vehicular traffic or parked cars between the
clients and the AP could impact performance.
So, for consistency, all for-the-record testing
was conducted in dry weather and after hours
with no cars in the parking lot and minimum
vehicular traffic.
The maximum data rates that clients can
theoretically achieve in the 802.11ac WiFi
environment are outstanding. Client-device and
AP support for two or three spatial streams can
double or triple the throughput. The maximum
theoretical data rates are:
theoretically achieve in the 802.11ac WiFi
environment are outstanding. Client-device and
AP support for two or three spatial streams can
double or triple the throughput. The maximum
theoretical data rates are:
With three spatial streams = 1,300 Mbps
With two spatial streams = 867 Mbps
With a single spatial stream = 433 Mbps.
These theoretical maximum data rates, the
physical layer (PHY) speed at which client
devices communicate with the AP, assume
perfect transmit conditions and do not take into
account the many factors that can reduce
throughput when passing actual data traffic,
including application and protocol.
physical layer (PHY) speed at which client
devices communicate with the AP, assume
perfect transmit conditions and do not take into
account the many factors that can reduce
throughput when passing actual data traffic,
including application and protocol.
Long-distance calls. An aerial view of the outdoor test area in suburban Ohio is shown above, with
300, 600 and 1,000-foot distances. The Access Points (APs) are mounted on the roof of the building
on the far right. The test area, across two parking lots, was marked off in 100-foot intervals.
300, 600 and 1,000-foot distances. The Access Points (APs) are mounted on the roof of the building
on the far right. The test area, across two parking lots, was marked off in 100-foot intervals.
The connection-oriented TCP, for example, can
reduce throughput drastically due to protocol
overhead. An FTP download, which uses TCP, for
example, can easily reduce a theoretical maximum
throughput in half.
reduce throughput drastically due to protocol
overhead. An FTP download, which uses TCP, for
example, can easily reduce a theoretical maximum
throughput in half.
Figures 3 and 4
on the next page show the
resulting average throughput by client. Results for
the two different smartphones are shown in
separate charts. The throughput values shown are
an average of four test runs for each client at each
location. It should also be noted that, due to
inconsistent results, additional test runs were
needed for the Aruba AP to achieve a proper
average in almost all test cases.
the two different smartphones are shown in
separate charts. The throughput values shown are
an average of four test runs for each client at each
location. It should also be noted that, due to
inconsistent results, additional test runs were
needed for the Aruba AP to achieve a proper
average in almost all test cases.
As expected, throughput declines as the client
distance from the access point increases.
distance from the access point increases.
Figure 3
shows that Samsung's Galaxy S4 smartphone,
which supports just one spatial stream, could
achieve a down-link throughput of 229 Mbps at 300
feet with the Cisco AP1572.
which supports just one spatial stream, could
achieve a down-link throughput of 229 Mbps at 300
feet with the Cisco AP1572.
Comparatively, though, the throughput delivered by
Cisco at 300 feet is significantly more than could
be obtained by the Galaxy S4 user from either the
Aruba or Ruckus APs tested.
Cisco at 300 feet is significantly more than could
be obtained by the Galaxy S4 user from either the
Aruba or Ruckus APs tested.
At 300 feet, the Cisco 1572 delivers 40 percent
more throughput to a Galaxy S4 than Aruba's AP-
275, and 58 percent more than the Ruckus T300.
275, and 58 percent more than the Ruckus T300.
At 1,000 feet, the Cisco 1572 delivers more than
five times the down-link throughput to a Galaxy S4
than either the Aruba AP-275 or the Ruckus T300.
than either the Aruba AP-275 or the Ruckus T300.
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4
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5
2
1
AP
Rate and Range Table
Position Legend
1. 300’ RvR.1*
2. 300’ RvR.2
3. 600’ RvR.3
4. 600’ RvR.4
5. 350’ Multi Client Table 2
6. 500’ Multi Client Table 1
7.
Position Legend
1. 300’ RvR.1*
2. 300’ RvR.2
3. 600’ RvR.3
4. 600’ RvR.4
5. 350’ Multi Client Table 2
6. 500’ Multi Client Table 1
7.
1000’ RvR.5
8.
1000’ RvR.6
9. Mesh AP Mount Point
*RvR = Rate vs Range
Figure 2: Outdoor Test Area Aerial View