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Open Virtualized WiMAX Base Station Node for GENI Wide-Area Wireless Deployments

Open Virtualized WiMAX Base Station Node for GENI Wide-Area Wireless Deployments. Dipankar Raychaudhuri and Ivan Seskar WINLAB, Rutgers, The State University of New Jersey Sampath Rangarajan, Meilong Jiang and Rajesh Mahindra NEC Laboratories America Contacts:

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Open Virtualized WiMAX Base Station Node for GENI Wide-Area Wireless Deployments

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  1. Open Virtualized WiMAX Base Station Node for GENI Wide-Area Wireless Deployments Dipankar Raychaudhuri and Ivan Seskar WINLAB, Rutgers, The State University of New Jersey Sampath Rangarajan, Meilong Jiang and Rajesh Mahindra NEC Laboratories America Contacts: {ray,seskar} at winlab dot rutgers dot edu {sampath,meilong, rajesh} at nec-labs dot com

  2. Project Objectives Virtual GENI Router (at PoP) GENI Access Network (Ethernet SW & Routers) GENI Backbone Network WiMAX Base Station (GBSN) GENI terminals (WiMAX phone/PDA running GENI/Linux) GENI Compliant WIMAX Base Station Controller Develop an open/virtualizable WiMAX base station with external control and data API’s • Implement GENI-specific software on an external Linux-based PC WiMax Base Station Controller supporting: • Virtualization • slice setup • Resource management • L2/L3 programmability • opt-in Demonstrate the GBSN capabilities in a phased manner, starting with controlled lab tests of each GENI feature and then migrating to a small-scale outdoor trial with off-the-shelf WiMAX terminal equipment.

  3. NEC WiMax Base Station Supported Service Classes Base Station Features

  4. GENI: Virtualized WiMax Network Network • WiMax BS • Cell coverage: 0.5~6km diameter • Throughput 10~75Mbps • 2~10 MS per sector/cell Classifier IP isolation Certified (Virtualized) 802.16e Mobile Stations Slice I Slice II Slice III OPT R6+ Scheduling Custom ASN-GW NEC 802.16e Base Station Qos Management GENI Node (Linux PC) • Base Station State • Radio resources (UL and DL) • Time slots (UL and DL) • Downlink burst profile • Uplink burst profile • Frequency • Power • Rate • GENI Open API • Maximum Bit-Rate, Burst-Rate • Minimum Tolerable Sending Bit-Rate • Maximum Tolerable jitter • Minimum Delay • Scheduling Type (e.g., UGS, rtPs ,nrtPs) • Frequency of Operation • Rate / Power requirements Legend BS-IDU: Base Station indoor unit BS-ODU: Base Station outdoor unit R6+: Extension of standard ASN-GW-BS R6 interface OPT: Optical Link

  5. (RR, WRR etc.) (RR, WRR etc.) (RR, WRR etc.) (RR, WRR etc.) (RR, WRR etc.) Slice QoS • The WiMax BS MAC supports scheduling across multiple queues for five service classes. • The GENI slice scheduler will map “Rspec” requirements of slices to the appropriate queue. • key design issue is isolation between the GENI scheduler and the MAC scheduler • APIs to receive information about (“get”) and modify (“set”) MAC /PHY parameters • Information about mapping between CID (connection ID) and IP address/port number at the CS (convergence sub-layer) • Information about the QoS class for a CID (convergence sub-layer) • Modify priority of the queues at the scheduler, weights for weighted round-robin schedule (common packet sub-layer) • Queue lengths of per CID queue, delay at the queues, time for successful transmission (common packet sub-layer) External PC Controller Slice II Slice I … Slice n GENI Slice Scheduling Open API interface 802.16e Common Packet Sublayer (CPS) BE nrtPS ertPS rtPS UGS … CID #N CID #N 802.16e Base Station BS DL-MAC Scheduler Priority-based Scheduling WiMAX Frame scheduler

  6. OMF ML Node Agent Node Handler Aggregate Mngr Server(s) Console DB Apps A Apps A Apps A Experiment Description Testbed(s) Node 1 Experimental Network(s) …. Control & Management Network Node X

  7. Application Application Application Node Agent Node Agent Node Agent Virtual Device Driver Virtual Device Driver Virtual Device Driver OMF Integration • OMF service for base station/slice scheduler control • Node Agent for experiment orchestration support • (WiMax) virtual device in each sliver Slice Scheduler OMF Service Base Station Controller R6+ External PC Controller

  8. Roadmap: GENI Open WiMAX BS OMF: ORBIT Management Framework Grid Services Implementation and Testing Base Station API BSR equipment with open API API Version 1.0 API validation & tests Custom ASN-GW: Implementation and Testing NEC Wimax BS Performance Evaluation Outdoor results NEC WiMax BS Delivered Indoor results Pico-chip Wimax BS Lab prototype Received PicoChip WiMax BS Experience gained with Picochip prototype START: Oct ‘08 2 Months 3 Months 4 Months 5 Months 6 Months 1 Month Year 1

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