Vyyo Technology Doubles Capacity to Enhance Bundled Services
Higher Upstream Capacity Enhances Voice, Multimedia,
and Video Conferencing Applications
CUPERTINO, Calif., June 4 /PRNewswire/ -- Vyyo Inc. (Nasdaq: VYYO), a leading provider of broadband fixed wireless systems, today announced the availability of upstream 16 QAM modulation in addition to its upstream QPSK modulation, maximizing the spectral efficiency of the system. Vyyo currently offers three downstream modulation schemes-64 QAM, 16 QAM and QPSK-which allow carriers to optimize their networks for different customer applications. High data rates upstream (5.12 Mbps on a 1.6 MHz upstream channel) through 16 QAM modulation is essential for carriers to offer symmetric services like voice, multimedia and video conferencing and to address higher upstream data rates required for multiple dwelling units (MDU) and small-medium enterprise (SME) customer segments.
Vyyo demonstrates its technical expertise with digital signal processing and wireless techniques by offering flexible and scalable solutions to allow carriers to maximize revenues per megabit of capacity. Carriers which deploy a supercell configuration, one large cell covering a broad geographic region, can easily increase capacity by assigning 16 QAM modulation to users closer to the base station and QPSK modulation to users further from the base station. This increases the number of users while simultaneously serving different applications. For carriers deploying several small cells, called multi-cell, 16 QAM can effectively double the capacity and coverage area of the small cells. Adding 16 QAM modulation from Vyyo is a simple software upgrade to the network management system and requires no hardware swap.
"Carriers faced with the challenge of asymmetric systems, which provide uneven capacity between the downstream (toward the user) and upstream (away from the user) directions, can now make their networks more symmetrical," said Keith Doucet, vice president of marketing for Vyyo. "This allows them to respond to the trend of adding voice capability to data applications, and maintain their network in the same base station. Carriers can choose whether to add subscribers, which is desirable in a multi-dwelling application such as an office building or apartment complex, add voice capability to their data product offering, or simply give its users higher data rates." |
