Cable AML Demostrates Broadband Wireless Access System

A new addition to state-of-the-art wireless technology has recently been unveiled by Cable AML-an IP-based, full-duplex, two-way, Broadband Wireless Access System. The system, dubbed the BWA-2002, is a fixed-wireless communication platform primarily intended for applications such as high-speed Internet access, LAN extension, virtual private networks (VPN’s) and voice over IP (VoIP) applications using the MMDS frequency band (2.1 to 2.6 GHz).

The BWA-2002 is one of several systems in the BWA-2000 family of Broadband Wireless Systems developed by Cable AML. Other models operate in the 3.4 to 3.6 GHz and 10.15 to 10.65 GHz bands.

The BWA-2002 is designed to operate within the standard MMDS channelization scheme, where the available spectrum is sub-divided into 31 channels, each 6 MHz wide. Each individual channel can be assigned for either down-stream data transport or TV distribution.

Each downstream channel can provide a data throughput of 30 Mbps with 64 QAM modulation format, or one standard VSB-AM NTSC analog TV program (PAL/SECAM programs can be implemented with a different channel plan).

Upstream transport is implemented by multiplexing 3 carriers for every 6 MHz of available bandwidth. Each QPSK-modulated carrier has a nominal bandwidth of 2 MHz and provides an upstream data throughput of 2.56 Mbps.

The BWA-2002 consists of three key subsystems: the headend, the RF transceiver/antenna, and the Customer Premises Equipment (CPE).

The headend typically houses one or more modems (HMTS or Headend Modem Termination Systems), an SNMP-based integrated Network Management System, and a QoS (Quality of Service) module. Each HMTS can service thousands of subscribers and provides three full-duplex (bi-directional) Ethernet 10BaseT data interfaces to a switched hub. The 10BaseT ports on the switched hub provide direct connectivity to local headend servers and access to Internet and remote servers via a router.

The RF transceiver/antenna configuration is determined by the system requirements, and can be either co-located with the data equipment or remotely connected via wireline or microwave STL.

The CPE equipment includes an integrated antenna/outdoor transceiver and an indoor modem.

Cable AML is a leader in the development and implementation of Broadband Wireless Access Systems. In fact, the BWA-2000 access platform is only one of four access platforms developed over the last two years.

Our complete Broadband Wireless Access Product Line makes it possible to match the optimum platform to each customer’s requirement. Contact Cable AML Sales for further information.

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