| | 145 | |
| | 146 | |
| | 147 | == References == |
| | 148 | |
| | 149 | |
| | 150 | === R1 GENI WiMAX Strategy === |
| | 151 | Harry Mussman (GPO) [[BR]] |
| | 152 | |
| | 153 | a) Goals for GENI WiMAX site deployments: [[BR]] |
| | 154 | Satisfy needs of local research experiments [[BR]] |
| | 155 | Support multi-site experiments, e.g., MobilityFirst [[BR]] |
| | 156 | Support remote experimenters [[BR]] |
| | 157 | |
| | 158 | Support multi-site applications? [[BR]] |
| | 159 | |
| | 160 | Are we missing something? support for instruction? [[BR]] |
| | 161 | |
| | 162 | b) Sol 2 base station deployments: [[BR]] |
| | 163 | Update to include OMF/OML structures, including LoginService [[BR]] |
| | 164 | Add GENI AM API [[BR]] |
| | 165 | |
| | 166 | Complete, and update to new software that support multiple VLANs, etc. [[BR]] |
| | 167 | Connect via switch to I2 backbone, via OF switches if there [[BR]] |
| | 168 | |
| | 169 | Consider how to setup multi-site slice, and include other GENI resources [[BR]] |
| | 170 | Consider federated operation [[BR]] |
| | 171 | Consider adding WiFi AP to support dual-homed experiments, e.g., MobilityFirst [[BR]] |
| | 172 | |
| | 173 | c) Sol 3 base station deployments: [[BR]] |
| | 174 | Consider 3.6GHz operation? [[BR]] |
| | 175 | Study commercial campus deployments, to understand coverage and applications: U Colorado, Boulder; Northern Mich U; UMass Dartmouth [[BR]] |
| | 176 | Order Airspan base stations and related items, for delivery 1/2012 [[BR]] |
| | 177 | Complete installation within Spiral 4! (within 1 year) [[BR]] |
| | 178 | |
| | 179 | Decide on how to provide ASN-GW for handover [[BR]] |
| | 180 | Consider open-source ASN-GW? or ASN-GW from Airspan? [[BR]] |
| | 181 | How could we use Wisconsin mobility engine? [[BR]] |
| | 182 | |
| | 183 | [http://groups.geni.net/geni/attachment/wiki/GEC12WiMaxDeploymentAndExperimentation/UoC%20-%20MacroMAXe%20RF%20Plan%20V1.1.pptx Airspan Deployment Plan for Univ Colorado at Boulder][[BR]] |
| | 184 | |
| | 185 | d) Mobile stations: [[BR]] |
| | 186 | Reference MS is Linux netbook, with Intel WIMAX modem card, internal or external [[BR]] |
| | 187 | Reference vehicular MS? [[BR]] |
| | 188 | Reference handset MS? Need to be able to unlock Sprint-supported device? [[BR]] |
| | 189 | |
| | 190 | e) Experiment support: [[BR]] |
| | 191 | Move to OMF/OML, for better support and for easier sharing [[BR]] |
| | 192 | Consider alternate techniques for throughput measurements [[BR]] |
| | 193 | Consider how to setup multi-site slice, and include other GENI resources [[BR]] |
| | 194 | |
| | 195 | GIMI project committed to supporting WiMAX sites [[BR]] |
| | 196 | |
| | 197 | How can we make it easy for experimenters? [[BR]] |
| | 198 | |
| | 199 | f) Other topics: [[BR]] |
| | 200 | Interworking with carriers (Clemson) [[BR]] |
| | 201 | Use of carrier resources, i.e., WiNTeB [[BR]] |
| | 202 | How could we add LTE? any match of equipment, frequencies and mobile stations? [[BR]] |
| | 203 | |
| | 204 | g) CONCERN: [[BR]] |
| | 205 | Do not have resources to do all of the above! how do we decide? [[BR]] |
| | 206 | What is the best way to support campus projects? [[BR]] |
| | 207 | What is the best way to support experimenters? [[BR]] |
| | 208 | |
| | 209 | |
| | 210 | === R2 Airspan Profile-C Base Station, with Associated Hardware and Software === |
| | 211 | Ivan Seskar (WINLAB) and Harry Mussman (GPO) [[BR]] |
| | 212 | |
| | 213 | |
| | 214 | a) Choice of Airspan to provide a WiMAX base station for new GENI WiMAX sites [[BR]] |
| | 215 | NEC is not able to provide a WiMAX base station for new GENI WiMAX sites [[BR]] |
| | 216 | WINLAB and the GPO have decided to purchase base stations from Airspan, a commercial company pursuing target customers such as universities and small carriers. [[BR]] |
| | 217 | For example, the Univ of Colorado at Boulder IT Dept has installed an Airspan system with 4 sectors, that covers the campus. They have been pleased with Airspan. [[BR]] |
| | 218 | WINLAB has a frim quote from Airspan for their MacroMAXe profile-C WiMAX base station unit, and related items. [[BR]] |
| | 219 | |
| | 220 | [http://groups.geni.net/geni/attachment/wiki/GEC12WiMaxDeploymentAndExperimentation/WiMAX_Brochure_Rev_J3.pdf Airspan brochure][[BR]] |
| | 221 | [http://groups.geni.net/geni/attachment/wiki/GEC12WiMaxDeploymentAndExperimentation/MacroMAXe%20Product%20Specification%20_Rel%209%200%201_%20Vx%5B1%5D.pdf MacroMAXe Product Specification] [[BR]] |
| | 222 | [http://groups.geni.net/geni/attachment/wiki/GEC12WiMaxDeploymentAndExperimentation/UoC%20-%20MacroMAXe%20RF%20Plan%20V1.1.pptx Airspan Deployment Plan for Univ Colorado at Boulder][[BR]] |
| | 223 | |
| | 224 | b) Rutgers will provide a kit including: [[BR]] |
| | 225 | Airspan MacroMAXe profile-C WiMAX base station unit, for outside mounting[[BR]] |
| | 226 | Choice of frequency: [[BR]] |
| | 227 | (2510 Lo: 2496MHz to 2570MHz) [[BR]] |
| | 228 | (2510 Mid: 2560MHz to 2630MHz) [[BR]] |
| | 229 | (2510 Hi: 2620MHz to 2690MHz) [[BR]] |
| | 230 | (3650: 3650MHz to 3700MHz)] [[BR]] |
| | 231 | |
| | 232 | NOTE: WINLAB needs to know frequency choices during November (or early December), so that they can place an order with Airspan for delivery late 2011 or early 2012! |
| | 233 | |
| | 234 | Sector antenna, with x4 RF jumper cables [[BR]] |
| | 235 | 2x4 MIMO, supported by base station and antenna [[BR]] |
| | 236 | GPS antenna, with surge suppressor and cable [[BR]] |
| | 237 | DC power cable, from base station unit (outside) to testbed (inside) [[BR]] |
| | 238 | Network management software license, 1 per base station [[BR]] |
| | 239 | |
| | 240 | Figure 3-1 Airspan MacroMAXe Base Station with Antenna |
| | 241 | |
| | 242 | [[Image(AirspanMacroMAXe.jpg, 50%)]] [[BR]] |
| | 243 | |
| | 244 | |
| | 245 | c) Campus will need to provide: [[BR]] |
| | 246 | Pole for mounting [[BR]] |
| | 247 | DC power supply (-48v, approx 300W) [[BR]] |
| | 248 | Ethernet cable, from base station unit (outside) to testbed (inside); consider copper (may be a problem with lightning surge) or fiber (requires MM fiber cable, and fiber interface on switch) [[BR]] |
| | 249 | Windows server to host network management software [[BR]] |
| | 250 | Linux server to host OMF software [[BR]] |
| | 251 | Ethernet switches, and other network equipment, for access (configuration to be provided) [[BR]] |
| | 252 | |
| | 253 | d) Additional kits can be purchased from Airspan [[BR]] |
| | 254 | Price is approximately $15,000. [[BR]] |
| | 255 | |
| | 256 | e) It is expected that additional base stations kits will be purchased for some (or all) Sol 3 GENI sites in Spiral 5. [[BR]] |
| | 257 | Thus, campus site might be able to add additional sectors, at no cost. [[BR]] |
| | 258 | Planning for next year will be done later this year. [[BR]] |
| | 259 | Consider including additional sectors within your technical plan right away. [[BR]] |
| | 260 | |
| | 261 | f) Note: Airspan indicates that they expect to introduce a new base station unit within the next year. [[BR]] |
| | 262 | Somewhat reduced performance/range. [[BR]] |
| | 263 | Approximately half the cost [[BR]] |
| | 264 | |
| | 265 | g) Airspan indicates that their sector antenna provides:[[BR]] |
| | 266 | A 90degree pattern, which is consistent with proper coverage over a 120degree sector.[[BR]] |
| | 267 | Four internal elements, to support 2x4 MIMO.[[BR]] |
| | 268 | Airspan can provide provide x4 omni-directional antennas, but the cost is much higher, and the range is signifcantly reduced.[[BR]] |
| | 269 | |
| | 270 | h) Airspan shows that their profile-C base station unit can be configured to operate without an ASN GW and without a RADIUS (authentication) server.[[BR]] |
| | 271 | In this mode, a list of allowed base stations must be configured into the base station, and groups of these base stations are mapped to a VLAN on the ethernet port.[[BR]] |
| | 272 | This appears to be consistent with the current NEC base station unit operated with the ASN GW/WiMAX RF AggMgr code that has been provided by Rutgers/WINLAB[[BR]] |
| | 273 | [http://groups.geni.net/geni/attachment/wiki/GEC12WiMaxDeploymentAndExperimentation/CS%20Network%20Configuration%20Setup%20Guide.pdf MacroMAXe Configuration Guide][[BR]] |
| | 274 | |
| | 275 | i) Airspan shows that if handover operation is desired, an ASN GW must be provided, plus typically an associated RADIUS (authentication) server.[[BR]] |
| | 276 | In this case, the base station unit operates with IP at the interface. [[BR]] |
| | 277 | |
| | 278 | |
| | 279 | |
| | 280 | === 4.2) Throughput Experiment Using iperf === |
| | 281 | 2:15pm [[BR]] |
| | 282 | Manu Gosain (GPO) and Harry Mussman (GPO) [[BR]] |
| | 283 | |
| | 284 | Overview of basic throughput experiment, using bidirectional iperf, both TCP and UDP [[BR]] |
| | 285 | [http://groups.geni.net/geni/wiki/OMFWiMAXExperiments#GENIWiMAXExperimentsUsingOMFOML Basic throughput experiment using OMF/OML] [[BR]] |
| | 286 | |
| | 287 | The basic throughput experiments we have done utilize iperf, both TCP and UDP. [[BR]] |
| | 288 | In iperf, the data is generated in the client, and flows to the server. [[BR]] |
| | 289 | We put the client in the Mobile Station, and the server in the Base Station. [[BR]] |
| | 290 | We used -d dualtest (bidirectional mode), where test is initiated at the client, data begins to flow to the server, and then a second data flow starts at the server; at the end of the test, results are available at the client. [[BR]] |
| | 291 | Because of this, all tests can be initiated at the Mobile Station, and then results are available there. [[BR]] |
| | 292 | |
| | 293 | iperf results in the TCP mode depend upon buffer sizes; overall delay; and lost packets. [[BR]] |
| | 294 | Because of wireless propagation conditions, lost packets are common, and slight changes can significantly affect the measured throughput. [[BR]] |
| | 295 | Thus, TCP results are highly variable; we took multiple measurements at each point, and identified the best and worst results. [[BR]] |
| | 296 | It would certainly be good to have a better way to evaluate available channel bandwidth. [[BR]] |
| | 297 | On the other hand, most apps use TCP and the variable results are typical of how these apps would see the channel. [[BR]] |
| | 298 | |
| | 299 | iperf results in the UDP mode, counts % packets received, for a given (fixed) transmit rate. [[BR]] |
| | 300 | If the rate is set below the available bandwidth, typically 100% of the packets are received. [[BR]] |
| | 301 | If the rate is set above the available bandwidth, typically % of the packets are received typically equals available bandwidth divided by offered bandwidth, but there is no way to understand how many packets are actually lost. [[BR]] |
| | 302 | An extended test that ramped up the offered bandwidth in multiple tests, could actually verify the available bandwidth; this could then be repeated to see real variations in available bandwidth. [[BR]] |
| | 303 | |
| | 304 | References: [[BR]] |
| | 305 | [http://groups.geni.net/geni/attachment/wiki/GEC12WiMaxDeploymentAndExperimentation/201007-JT_Iperf.pptx iperf tutorial slides] [[BR]] |
| | 306 | [http://openmaniak.com/iperf.php iperf tutorial web site][[BR]] |
| | 307 | |
| | 308 | === 4.3) Throughput Experiment Using Bit Torrent === |
| | 309 | 2:20pm [[BR]] |
| | 310 | Fraida Fund (NYU Poly) [[BR]] |
| | 311 | |
| | 312 | [http://groups.geni.net/geni/attachment/wiki/GEC12WiMaxDeploymentAndExperimentation/NYU-Poly-WiMAX-BT-Experiment.pdf slides] [[BR]] |
| | 313 | |
| | 314 | Overview of throughput experiment, using bit torrent. [[BR]] |
| | 315 | Advantages [[BR]] |
| | 316 | |
| | 317 | [http://groups.geni.net/geni/attachment/wiki/GEC12WiMaxDeploymentAndExperimentation/NYU-Poly-WiMAX-BT-Experiment.pdf Reference] [[BR]] |
| | 318 | [http://witestlab.poly.edu/index.php/wimax/field-measurements.html More information & source code] [[BR]] |
| | 319 | [http://witestlab.poly.edu/index.php/component/user/?task=register Use the NYU-Poly WiMAX testbed] [[BR]] |
| | 320 | |
| | 321 | |
| | 322 | === 4.4) Raw IP and UDP Traffic Generators === |
| | 323 | 2:25pm [[BR]] |
| | 324 | Surat (Au) Teerapittayanon (MIT) [[BR]] |
| | 325 | |
| | 326 | Overview of new raw IP and UDP traffic generators, to accurately gauge available channel bandwidth. [[BR]] |
| | 327 | [http://groups.geni.net/geni/attachment/wiki/GEC12WiMaxDeploymentAndExperimentation/GEC12Slides_plusreadme.ppt slides] [[BR]] |
| | 328 | |
| | 329 | === 4.5) Using OMF and OML in Your Experiment === |
| | 330 | 2:30pm [[BR]] |
| | 331 | Christoph Dwertmann (NICTA) [[BR]] |
| | 332 | |
| | 333 | [http://groups.geni.net/geni/attachment/wiki/GEC12WiMaxDeploymentAndExperimentation/omf-gec10%20copy.pdf slides] [[BR]] |
| | 334 | |
| | 335 | [http://groups.geni.net/geni/wiki/OMFWiMAXExperiments#GENIWiMAXExperimentsUsingOMFOML Basic throughput experiment using OMF/OML] [[BR]] |
| | 336 | |
| | 337 | OML'ified apps we know of include:[[BR]] |
| | 338 | gpslogger[[BR]] |
| | 339 | Iperf[[BR]] |
| | 340 | omf_nmetrics[[BR]] |
| | 341 | omf_trace[[BR]] |
| | 342 | otg and otr[[BR]] |
| | 343 | wlanconfig_oml[[BR]] |
| | 344 | Yantt (Yet another network testing tool)[[BR]] |
| | 345 | SNMP wrapper[[BR]] |
| | 346 | |
| | 347 | [http://oml.mytestbed.net/projects/omlapp/wiki Repository for OML'ified apps] [[BR]] |
| | 348 | |
| | 349 | List of available modules with OMF and OML for use in your experiment [[BR]] |
| | 350 | Approach for adding OMF and OML interfaces to additional modules [[BR]] |
| | 351 | |
| | 352 | === 4.6) Multiple Site Experiment: Mobility First === |
| | 353 | 2:35pm [[BR]] |
| | 354 | Kiran Nagaraja (WINLAB) [[BR]] |
| | 355 | |
| | 356 | [http://groups.geni.net/geni/attachment/wiki/GEC12WiMaxDeploymentAndExperimentation/MF-GEC12-PlenaryDemo-10-3-2011.pdf slides] [[BR]] |
| | 357 | |
| | 358 | Overview of current Mobility First multiple-site experiment. [[BR]] |
| | 359 | |
| | 360 | What additions are needed? [[BR]] |
| | 361 | 1) Add WiFi AP to each site. [[BR]] |
| | 362 | 2) L2 path from MS to core [[BR]] |
| | 363 | |
| | 364 | Experiment done without human intervention, by using x2 MAC addresses, and emulating packet loss to fake mobility. [[BR]] |
| | 365 | Consider these as possible sites by GEC13: WINLAB; BBN; NYU Poly; UCLA; Colorado. [[BR]] |
| | 366 | |
