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The Wireless Network Edge has finally arrived: Challenges and Solutions 802.11n is now widely adopted, pushing Wi-Fi steadily as the preferred connection method for mobile and not-so-mobile users. As more and more wireless-enabled devices appear on the network, a number of challenges are also appearing around managing wireless bandwidth and carrying the load across the network. This session will cover existing HP solutions, such as 3 streams MIMO, band steering, beam forming, broadcast filtering, plus upcoming advancements on RF management, unified wired/wireless, and 802.11ac.
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HP TECHNOLOGY@WORK 2011THE INSTANT-ON ENTERPRISE IS HERE
2ND GENERATION802.11n
Richard Litchfield
Solution ArchitectHP Networking
Converged Infrastructure at the Wireless Edge
– Anywhere Anytime Access
– Mobile Flexible Workforce
– Multi-Play IP Network
– Resilient Infrastructure
– Secure Access with Data Integrity
– Flexible Infrastructure
– Network Visibility and Control
MULTI-SERVICE MOBILITY
Command from the DC
Control to the Edge
Distributed Intelligence
– Centralised Management & Control
– Distributed Forwarding
– Intelligent Wireless Access Points
– Non-blocking 802.11n throughput
– Source-to-Destination Traffic Forwarding
– Efficient Use of Wired LAN Backbone
– Reduction of Failure Points
OPTIMISED ARCHITECTURE
Application Server
HP Wireless APs
HP Wireless Controller
Edge Switch
Management, control and secure trafficEmployee traffic
ApplicationServer
Backbone
IEEE 802.11nHigh-Throughput Wireless
WHAT IS 802.11n?
– Developed by the IEEE 802.11 Task Group “n” (TGn)
– Enables “High Throughput” wireless networking (100+ Mbps)
– Utilizes MIMO to dramatically increases the range and throughput
– Extends wireless data rates well beyond the 802.11ag limit of 54Mbps
– Designed to support speeds beyond 300Mbps
Grouped into 13 categories
802.11n ENHANCEMENTS
− Category #1: New radio technology basics− Category #2: Creation of new HT format− Category #3: Use of 40 MHz channels, versus 20 MHz used in 802.11abg− Category #4: Aggregation− Category #5: Block Acknowledgement− Category #6: Unique 802.11n specific Greenfield mode added− Category #7: Huge increase in the number of data rates via MCS− Category #8: Space-time block coding− Category #9: Beamforming− Category #10: Link Adaptation, Channel Sounding, and Calibration− Category #11: Backward compatibility and coexistence with 802.11abg− Category #12: New Power Save Mechanisms− Category #13: Multiple radios and antennas used in parallel (MIMO)
Channel Bonding
– Use twice the bandwidth
– Clear Channel Assessment (CCA) checks for legacy devices
– Only 1 non-overlapping 40MHz channel in the 2.4GHz band
– 12 non-overlapping 40MHz channels in the 5GHz band
CATEGORY #3: 40 MHZ CHANNELS
20MHz 40 MHz
802.11n802.11abg
Channel Bonding Examples
20 & 40MHZ CHANNELS
Aggregated data is ACK’ed in blocks instead of individual frames
CATEGORY #5: BLOCK ACK
Data
ACKData
ACK
Data
ACK
Previous Method
Data
Data
Data
ACK
Data
Data
New Block ACK
Disable backward-compatible protection mechanisms
CATEGORY #6: GREENFIELD MODE
11abg
11n 11n
Intelligent Management of Radio Frequency (RF) Energy
CATEGORY #9: BEAMFORMING
Multiple radios and antennas used in parallel
CATEGORY #13: MIMO
Multiple Transmitters:2 Tx 3.0 dBm Increase3 Tx 4.7 dBm IncreaseIn Transmit Output Power
Multiple Receivers:2 Rx 3.0 dBm Increase3 Rx 4.7 dBm IncreaseIn Receive Sensitivity
BEYOND 300MbpsIndustry Leading Performance
450Mbps 802.11n WIRELESS ACCESS POINTS
– First in the industry to offer near Gigabit Ethernet WLAN client access• Three-spatial-stream dual 802.11n APs deliver 450Mbps per radio• Industry-standard Beamforming technology• Band steering• Concurrent operation in 5GHz band
– Multiple antennae and mounting options
– Standards based technology
– Lower TCO
– Lifetime Warranty
– Dual Radio 450Mbps 802.11n APs• E-MSM460: 3x3:3, integrated 4/7dBi antennas• E-MSM466: 3x3:3 ; six RP-SMA Male connectors
– New RF Optimisation Features• Standards-based Beamforming• Band steering
– Supported operating band configurations• 2.4GHz + 5GHz (MSM460)• 5GHz + 5GHz (MSM466)
LEADING THE INNOVATION WAVE
E-MSM460
E-MSM466
Available Now!
Based on IEEE 802.11n Standard
– Uses sounding packets to align an AP’s transmitter with a client’s receiver
– Supports three spatial streams 450Mbps
– Non-proprietary
– Reliable
– Future Proof
– Superior to Antenna-Based Beamforming (Proprietary)• No support for three spatial streams• Suffers from hidden node issues• Won’t support future client chipsets featuring Beamforming
HP CHIP-BASED BEAMFORMING
SUPERIOR PERFORMANCEIndustry Leading Performance
300Mbps 802.11n15 Client Benchmark
HP MSM460 450Mbps 802.11n15 Client Benchmark
With the highest-performing family of access points
SUMMARY: HP LEADS THE INNOVATION WAVE
– HP is the first to market with a 450Mbps 802.11n wireless access point
– Significantly increased throughput and signal stability
– Dual radios support current and legacy devices without impacting each other
– Only requires POE power (not POE+)
HP Networking offers intelligent 802.11n wireless networking solutions that provides flexible access for businesses of all sizes.
NEXT STEPS
– Visit: The Cloud System Feature
– Engage: See the HP Rep at rear of clinic
– Seek more: Request follow up via Eval Form
– Re-Live: www.hp.com.au/taw11post