802.11N 3×3 MIMO Outdoor Wireless Mesh AP

The client approached us with the need to engineer mesh network products utilizing 802.11 n. Among the products, would also be included, outdoor access point and customer premises equipment. The client faced the necessity to undergo a complete tech shift, specifically because they had recently taken over 802.11 A/B/G/N VxWorks based Product Company. Additionally, they also had a few pre-committed projects on hand that required deliverance within a very tight deadline.

AIM OF THE PROJECT

Acquiring a set-up that was already dealing in advanced Wi-Fi protocols, gave the client a golden edge. All products under the existing product lines could now be enabled with next generation Wi-Fi protocols, thus ensuring higher profitability and better welcome feature set in the existing products. We set our goals clear and aimed at achieving implementation of 802.11 n in each product type that the customer was already dealing in.

THE CHALLENGE

The timeline for execution was really short and the project dictated a complete shift of technology. It was basically a scratch to end gig, so apparently, we were solely responsible for sketching out the right plan, being functional in the core development phase and closing the project successfully with rigorous testing.

FEATURES
  • Access/One Outdoor Wireless solution with up to 3×3 MIMO providing blistering fast throughput at up to 300 Mbps and built for extreme capacity
  • The device supports multiple radio frequencies (2.4 GHz, 4.9 GHz, 5 GHz) concurrently from each unit
  • 802.11 A/B/G/N based device with support for 6 radio cards
  • Can connect Up-to 744[6 * 124] wireless 802.11N end-connections
  • Mesh-wide Layer 2 Traffic Isolation
  • Encryption – Backhaul: AES-CCM, Client: AES, TKIP and WEP , 64, 128, 256 bit
  • Uniquely designed for simultaneous support of multiple applications, VLAN segmented networks, real-time and low latency voice, and high-resolution video applications and services
  • 802.11 B/G/N based low-cost CPE based on MIPS32K architecture
  • Remote management of all the devices in the field
  • Small memory footprint (as low as 3 MB) for CPE firmware with Linux, all wireless tools, and HTTP web server
VOLANSYS’ ROLE
  • Complete Product Engineering, Sustenance Engineering for legacy products & Customer Engineering for existing deployments
  • Prototype including board design and embedded software
  • Porting software from VxWorks to Linux including proprietary Mesh networking algorithm
DRIVER DEVELOPMENT/PORTING
  • Driver modifications for Atheros chipsets
    • AR5212/ AR5214 / AR92xx / AR93xx
  • Atheros 8382 Managed Switch
  • HW Packet Encryption (AES, CCMP & TLS)
  • Porting of wireless driver changes from Net80211 to Madwifi
  • Driver changes for Gigabit Ethernet Support & HEC
  • RFFC (Configurable Frequency Convertor) Driver
  • NAND, Clock Buffer, GPS, SPI Master & Slave drivers
FIRMWARE PORTING
  • Complete backhaul management, Mesh protocol porting, DFS, PPPoE, SNMP, Firewall, Netfilter, VLAN, EtherSSID, DHCP server, Router/Bridge mode, NAT implementation
  • OTA Firmware Upgrade, Manufacturing Diagnostics Development
  • Bandwidth Management, QoS services
  • CLI management
QUALITY ASSURANCE
  • Functionality Testing
  • ART Test
  • Performance Test
  • Stress Test
  • Long Distance Association
  • System level validation