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Ensuring the Best Video Quality—And Enabling Wireless IPTV.

Our patent-pending SmartCast technology combines innovative multicast traffic handling techniques, smart QoS, and application-aware traffic classification capabilities, for top-quality Wi-Fi video transmissions. SmartCast differentiates and manages multicast video frames separately from all other traffic types, for robust wireless transport for IPTV streams.

When SmartCast detects a wireless client subscribing to a multicast streaming application, such as IPTV or a VOIP call, it directs the associated multicast packets to each subscriber, using the optimum data rate and signal path. To ensure peak performance, all packets are queued/de-queued by specialized schedulers, optimized for the corresponding traffic type, the delay/jitter tolerance and bandwidth requirements of the traffic, and the changing characteristics of each station on the WLAN.

SmartCast features:

Multimedia optimized traffic management algorithms guarantee performance for multiple broadcast quality video streams while maintaining adequate bandwidth for data applications. SmartCast automatically classifies all traffic based on UDP/TCP port and other application attributes, and manages each traffic type (voice, video, data) according to its classified priority and characteristics. Automatic Type-of-Service (TOS) tagging eliminates complex QoS configurations, while automatic management of lower-speed 802.11b devices assures bandwidth availability for prioritized video applications. Four priority queues per-station result in high prioritization granularity and precision for multiple concurrent video streams. All packets are queued/de-queued by specialized schedulers optimized for the corresponding traffic type. Each scheduler takes into account the delay/jitter tolerance and bandwidth requirements of the traffic and the changing performance characteristics of each station on the WLAN to ensure the best end-user experience.

Smart traffic management maximizes reliability and wireless performance

SmartCast is a sophisticated quality of service (QoS) engine specifi cally developed to maximize the reliability and performance of delay-sensitive applications, such as IP-based voice and video over 802.11 networks.

Based on patented technology, SmartCast delivers a collection of unique capabilities — such as packet inspection, automatic traffi c classifi cation, advanced queuing and scheduling.

Unlike any other 802.11 system, RUCKUS SmartCast algorithms automatically schedule and pre-queue traffi c in software on a per client basis. This enables more advanced classifi cation and scheduling that can be applied for each client on a per-traffi c-class basis. SmartCast is a superset of the IEEE 802.11e/WMM hardwarebased queuing standard, ensuring uncompromised performance while remaining standards-compliant.

With per-client queuing, SmartCast is ideal for video and voice over Wi-Fi applications because it ensures disruptive clients don’t negatively effect the performance of others clients on the network (no head-of-line blocking).

The SmartCast engine further optimizes spectrum usage with innovative band steering and airtime fairness technologies. Essential in high-density and diverse client environments such as conference facilities, classrooms and auditoriums, SmartCast works in concert with RUCKUS BeamFlex smart antenna array technology to deliver greater network throughput and more predictable performance for latency-sensitive applications.

SmartCast uses patented multicast traffi c handling to guarantee high-defi nition video streaming over Wi-Fi. Proven in millions of subscriber homes around the world, providers are using SmartCast to deliver multiple concurrent broadcast quality video streams to subscribers without having to wire or rewire homes or offi ces.

SmartCast was designed for simplicity, requiring no manual tuning or confi guration. SmartCast automatically classifi es traffi c based on Layer 2 or 3 priority tags and performs and advanced heuristic analysis on untagged traffic.

SmartCast Queuing and Scheduling

SmartCast Queuing and Scheduling