User's Manual Part 1

Key Features of RADWIN 2000 Chapter 1
RADWIN 2000 User Manual Release 2.5.40 1-6
Built on advanced MIMO and OFDM technologies, the RADWIN 2000 system provides
a high-capacity link at channel bandwidths of 5, 10 and 20MHz. These channel
bandwidths supports high robustness of the air interface under interference and harsh
conditions.
» Multi-band Products
Every RADWIN 2000 Multi-band radio supports multiple frequency bands. For example
the RW-2050-0250 connectorized radio supports the bands: 5.9 GHz, 5.8 GHz, 5.4
GHz, 5.3 GHz, 4.9 GHz, 2.4 GHz and 3.4-3.7 GHz. The RADWIN 2000 Multi-band prod-
ucts support the regulations of FCC, IC Canada, ETSI and WPC India. DFS is sup-
ported where required by regulation.
» Advanced Air Interface
The RADWIN 2000 system provides an advanced air-interface based on MIMO,
antenna diversity and OFDM technologies, resulting in an exceptionally robust air
interface and high frequency band granularity.
Using the following technologies, the RADWIN 2000 air interface is designed to ensure
nonstop, high quality transmission, even under interference and harsh conditions:
• Automatic Adaptive Rate (AAR) is a mechanism that dynamically adapts the air
interface rate by changing both the signal modulation and coding.
• Automatic Channel Selection (ACS) chooses the best channel by monitoring the
available radio channels and dynamically selecting a channel which is best suited
for transmission at any given time.
• Automatic Repeat Request (ARQ) is a mechanism for error control during data
transmission. When the receiver detects an error in the received information, it
automatically requests the transmitter to resend the information. This process is
repeated until the transmission is error free or the error continues beyond a pre-
determined number of maximum transmissions. RADWIN 2000's ARQ mechanism
is optimized for time-critical traffic.
• Forward Error Correction (FEC) with very low overhead and algorithms specifi-
cally designed for the varying conditions of license-exempt frequency bands,
ensuring fast, robust and error-free communications.
» High transmission (Tx) power
The RADWIN 2000 system supports high Tx power, compliant with radio regulations.
High Tx power increases the system's availability and range, and enables the high
performance with smaller antennas, thus reducing the total cost of the solution (lower
CAPEX), installation and tower rent costs (lower OPEX).
The 5 GHz bands support a maximum Tx power of 25dBm whereas the 2.4 GHz band
supports a maximum Tx power of 26dBm.
» Superior range performance
The RADWIN 2000 system supports high capacity at superior ranges. The Link Budget
Calculator (Chapter 21) is used to determine the capacity and range according to the
choice of product, antenna, type of service and environmental conditions.
» HSS Interoperability between RADWIN 2000 and WinLink 1000
Site Synchronization is supported with any mix of RADWIN 2000 and WinLink 1000
links. RADWIN 2000 can be used to backhaul WinLink 1000 collocated links without
mutual interference