WINLAB 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 WiMAX Base Station Node for GENI Wide- Area Wireless Deployments
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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: - PowerPoint PPT Presentation
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WINLAB
Dipankar Raychaudhuri and Ivan Seskar WINLAB, Rutgers, The State University of New
JerseySampath Rangarajan, Meilong Jiang and Rajesh
MahindraNEC Laboratories America
Contacts:{ray,seskar} at winlab dot rutgers dot edu
{sampath,meilong, rajesh} at nec-labs dot com
Open Virtualized WiMAX Base Station Node for GENI Wide-
Area Wireless Deployments
WINLAB
Project Objectives
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.
Develop an open/virtualizable WiMAX base station with external control and data API’s
WINLAB
NEC WiMax Base Station
PHY
Access mode SOFDMA/TDD
Frequency 2535 ~ 2605 MHz
DL:UL ratio 35:12, 26:21, 29:18
Channel BW 10 MHz , 8.75 MHz
FFT size 1024, 512
Frame duration 5ms
TX output Power 35dBm (max)
# of sectors 3
MAC
Head compression
PHS
ARQ HARQ/CC, ARQ
MBS support Single BS, multiple BS-MBS
Resource management
Power control, mode control (idle, sleep etc.)
Networking
IP protocols IPv4, IPv6
Bridging/Routing Transparent L2 switch, Bridging
Packet handling 802.1Q VLAN, PHS**)
rtPS real-time polling service
ertPS enhanced real-time polling service
nrtPS non real-time polling service
UGS unsolicited grant service
BE best effort
Base Station Features Supported Service Classes
WINLAB
Slice I
Scheduling
IP isolation
Slice II Slice III
NEC802.16e Base Station
GENI: Virtualized WiMax Network
GENI Node (Linux PC)
Certified (Virtualized) 802.16e Mobile Stations
Classifier
Custom ASN-GW
Qos Manageme
nt
R6+
Network
OPT
GENI Open APIMaximum Bit-Rate, Burst-RateMinimum Tolerable Sending Bit-RateMaximum Tolerable jitterMinimum DelayScheduling Type (e.g., UGS, rtPs ,nrtPs)Frequency of OperationRate / Power requirements
Base Station StateRadio resources (UL and DL)Time slots (UL and DL)Downlink burst profileUplink burst profileFrequencyPowerRate
LegendBS-IDU: Base Station indoor unitBS-ODU: Base Station outdoor unitR6+: Extension of standard ASN-GW-BS R6 interfaceOPT: Optical Link
WiMax BSCell coverage: 0.5~6km diameterThroughput 10~75Mbps2~10 MS per sector/cell
WINLAB
External PC Controller
802.16e Base
Station
Slice QoS
GENI Slice Scheduling
CID
#N
UGS
BS DL-MAC Scheduler
WiMAX Frame scheduler
(RR, WRR etc.)
CID
#N
Priority-based Scheduling
ertPS rtPS nrtPS BE
Open API interface
802.16e Common Packet Sublayer (CPS)
Slice I
Slice II
Slice n
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)