Changes between Version 46 and Version 47 of Gec7ClusterEAgenda


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Timestamp:
03/30/10 15:55:42 (10 years ago)
Author:
hmussman@bbn.com
Comment:

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  • Gec7ClusterEAgenda

    v46 v47  
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    4 = Cluster-E and WiMAX Deployment Meetings at GEC7:  Agenda and Notes =
     4= Cluster-E and WiMAX Deployment Meetings at GEC7,  Agenda and Notes =
    55
    66
     
    155155
    156156NYU Poly (1751) on 3/17:[[BR]]
    157  1) Resource allocation with fairness.  With physical layer measurements, such as signal-to-noise ratio (SNR) over different sub-channels, optimal resource management can be performed in the MAC layer for SSs at different locations. We will implement several conventional schedulers, e.g., Modified Deficit Round Robin (MDRR) to efficiently support different types of WiMAX traffic flows (UGS, rtPS, nrtPS, Best Effort).  This work will focus on maximizing the overall system throughput, while assuring that each SS of predefined fairness in terms of data rate and delay constraint. [[BR]]
    158  2)  Cooperative transmission (multihop).  One SS (here it may be a second BS or a virtualized second BS) may act as intermediate relay between an end SS and the BS. In the uplink, the relaying SS (second BS or a virtualized second BS) can intercept the signal from the end SS and then forward to the BS. Thus, the single-hop transmission is partitioned into two hops. By implementing and testing this function, we can show the performance enhancement of two-hop delivery over one-hop delivery in terms of either coverage extension or throughput improvement.[[BR]]
    159  3)  Cooperative Multicast real-time services.  We will study the performance of multicast services in different setup of the testbed. We will measure the PER in different locations and study several schemes for the improvement of the QoS in different groups of stations, including cooperative schemes where particular clients will operate as relays and will forward the multicast streams to groups of stations with poor link quality. Video over wireless schemes will be developed and tested where application layer FEC or/and layered video schemes will be implemented. [[BR]]
    160  4)  Rate adaptation.  We can test rate adaptation function in the open-source MAC layer driver. In response to the variation of physical layer channel, we can adjust the transmission rate of each SS adaptively such that a certain level of QoS can be guaranteed while the optimal data rate is maintained over time.[[BR]]
    161  5)  WiMAX/WiFi interconnection.  Based on the fact that in the same Lab we operate a WiFi testbed similar to ORBIT, we are planning to investigate the dynamics of coexisting WiMAX and WiFi testbeds. In particular, we are planning to develop schemes where the clients of the network have two interfaces: one WiMAX and one WiFi. The clients are located relatively close to each other (in the same building) and they receive a video stream from the WiMAX BS. However, each client experiences different video quality due to the different packet errors at different locations. In order to improve the video quality, the clients setup an ad-hoc WiFi network. Each client buffers the video stream and figures our which packets are missing in a particular time window. Then it broadcasts requests to the ad-hoc network asking for the missing packets. Nodes that have those packets, reply by sending them to the node that initiated the process. In this way the wireless nodes recover the packets lost in their WiMAX interface though their WiFi interface.  [[BR]]
    162  6)  Management of the WiMAX testbed.  Since the WiMAX testbed will be used by several researchers in the University we will develop a managerial tool in order to give to researchers remote access and to make available particular parameters for defining and running experiments,  collecting the results and monitoring the whole process.
    163  7)  Teaching purposes.  Finally we are planning to use the WiMAX facility for teaching classes on wireless networks, wireless video applications and for several labs.[[BR]]
     1571) Resource allocation with fairness.  With physical layer measurements, such as signal-to-noise ratio (SNR) over different sub-channels, optimal resource management can be performed in the MAC layer for SSs at different locations. We will implement several conventional schedulers, e.g., Modified Deficit Round Robin (MDRR) to efficiently support different types of WiMAX traffic flows (UGS, rtPS, nrtPS, Best Effort).  This work will focus on maximizing the overall system throughput, while assuring that each SS of predefined fairness in terms of data rate and delay constraint. [[BR]]
     1582)  Cooperative transmission (multihop).  One SS (here it may be a second BS or a virtualized second BS) may act as intermediate relay between an end SS and the BS. In the uplink, the relaying SS (second BS or a virtualized second BS) can intercept the signal from the end SS and then forward to the BS. Thus, the single-hop transmission is partitioned into two hops. By implementing and testing this function, we can show the performance enhancement of two-hop delivery over one-hop delivery in terms of either coverage extension or throughput improvement.[[BR]]
     1593)  Cooperative Multicast real-time services.  We will study the performance of multicast services in different setup of the testbed. We will measure the PER in different locations and study several schemes for the improvement of the QoS in different groups of stations, including cooperative schemes where particular clients will operate as relays and will forward the multicast streams to groups of stations with poor link quality. Video over wireless schemes will be developed and tested where application layer FEC or/and layered video schemes will be implemented. [[BR]]
     1604)  Rate adaptation.  We can test rate adaptation function in the open-source MAC layer driver. In response to the variation of physical layer channel, we can adjust the transmission rate of each SS adaptively such that a certain level of QoS can be guaranteed while the optimal data rate is maintained over time.[[BR]]
     1615)  WiMAX/WiFi interconnection.  Based on the fact that in the same Lab we operate a WiFi testbed similar to ORBIT, we are planning to investigate the dynamics of coexisting WiMAX and WiFi testbeds. In particular, we are planning to develop schemes where the clients of the network have two interfaces: one WiMAX and one WiFi. The clients are located relatively close to each other (in the same building) and they receive a video stream from the WiMAX BS. However, each client experiences different video quality due to the different packet errors at different locations. In order to improve the video quality, the clients setup an ad-hoc WiFi network. Each client buffers the video stream and figures our which packets are missing in a particular time window. Then it broadcasts requests to the ad-hoc network asking for the missing packets. Nodes that have those packets, reply by sending them to the node that initiated the process. In this way the wireless nodes recover the packets lost in their WiMAX interface though their WiFi interface.  [[BR]]
     1626)  Management of the WiMAX testbed.  Since the WiMAX testbed will be used by several researchers in the University we will develop a managerial tool in order to give to researchers remote access and to make available particular parameters for defining and running experiments,  collecting the results and monitoring the whole process.
     1637)  Teaching purposes.  Finally we are planning to use the WiMAX facility for teaching classes on wireless networks, wireless video applications and for several labs.[[BR]]
    164164
    165165UCLA (1797) on 3/16:[[BR]]
     
    184184=== Break ===
    185185
     186=== Tutorial on WiMAX Setup ===
    186187               
    187 3:30pm, Gautam Bhanage, Max Ott, Ivan Seskar: [[BR]]
    188  [http://groups.geni.net/geni/attachment/wiki/Gec7ClusterEAgenda/tutorial%20wimax%20setup%20%20GENI_GEC7_2.ppt  Tutorial on WiMAX setup, including how to use OMF ] [[BR]]
    189  
    190  Basic "bringup" use case, for use on campus to verify installation;  also useful for later regression tests? [[BR]]
    191  Tutorial at Rutgers this summer, before GEC8?  [[BR]] 
     188Gautam Bhanage: [http://groups.geni.net/geni/attachment/wiki/Gec7ClusterEAgenda/tutorial%20wimax%20setup%20%20GENI_GEC7_2.ppt  slides] [[BR]]
     189
     190ISSUE:  Tutorial at Rutgers this summer, before GEC8?   [[BR]]
     191       
     192=== Demos for GEC8 ===
     193
     194Brainstorming and discussion by group:[[BR]]
     1951)  Multi-campus application, e.g, wideband video between handsets;  distributed conferencing;  video content distribution[[BR]]
     1962)  Mobile connectivity: car to car, car to infrastructure via WiMAX[[BR]]
     1973)  Portable switch for Layer 2 connectivity;  like Sprint mobile hot spot, except Layer 2;  client to switch via WiFi, switch to infrastructure via WiMAX;  good for campus access.[[BR]]
     1984)  Virtualized WiMAX provides emergency slice;  adjust network utilization to assure good QoS for emergency slice;  reassign to accomplish dynamic provisioning.[[BR]]
     199
     200=== Clearwire deployments ===
     201
     202See [http://blog.connectedplanetonline.com/unfiltered/2009/12/01/clearwire-completes-2009-wimax-footprint/ 2009 rollout][[BR]]
     203See [http://connectedplanetonline.com/3g4g/news/clearwire-sprint-kick-off-4G-0329/ 2010 plans][[BR]]
     204
     205Currently in service:[[BR]]
     206Georgia, Atlanta[[BR]]
     207Maryland, Baltimore[[BR]]
     208Illinois, Chicago[[BR]]
     209Nevada, Las Vegas [[BR]]
     210Oregon, Portland, Eugene and Salem [[BR]]
     211North Carolina, Charlotte, Greensboro and Raleigh[[BR]]
     212Hawaii, Honolulu and Maui.[[BR]]
     213Texas:  Abilene, Amarillo, Austin, Corpus Christi, Dallas, Fort Worth, Houston, Killeen/Temple, Lubbock, Midland/Odessa, San Antonio, Waco and Wichita Falls[[BR]]
     214Washington, Seattle and more[[BR]]
     215Idaho, Boise[[BR]]
     216
     217Planned for remainder of 2010:[[BR]]
     218Pennsylvania,  Philadelphia[[BR]]
     219Massachusetts, Boston[[BR]]
     220Colorado, Denver[[BR]]
     221Missouri, Kansas City[[BR]]
     222New York City[[BR]]
     223California, San Francisco[[BR]]
     224Washington, D.C.[[BR]]
     225Minnesota, Minneapolis[[BR]]
     226
     227Possibly:[[BR]]
     228California, Los Angeles[[BR]]
     229Florida, Miami[[BR]]
     230
     231
     232=== Adjourn ===
    192233               
    193 3:00pm, Ivan Seskar:  [[BR]]
    194  Federation of testbeds on multiple campuses?  [[BR]]
    195  How to connect via backbone, i.e., Internet2 with Layer 2 connections, or Layer 2 tunnels? [[BR]]
    196  How to control from a remote location?  [[BR]]
    197  Current Layer 2 connectivity from Ruthers/WINLAB to NICTA via Internet 2 and AARNET: [[BR]]
     234
     235=== Federation of Testbeds on Multiple Campuses ===
     236
     237Not discussed
     238
     239How to connect via backbone, i.e., Internet2 with Layer 2 connections, or Layer 2 tunnels? [[BR]]
     240How to control from a remote location?  [[BR]]
     241
     242Current Layer 2 connectivity from Ruthers/WINLAB to NICTA via Internet 2 and AARNET: [[BR]]
    198243
    199244 [[Image(031610_ClusterE_Connectivity.jpg, 80%)]]  [[BR]]
    200245
    201  
    202  Demos for GEC8:  [[BR]]
    203 
    204  1)  Multi-campus application, e.g, wideband video between handsets;  distributed conferencing;  video content distribution
    205 
    206  2)  Mobile connectivity: car to car, car to infrastructure via WiMAX
    207 
    208  3)  Portable switch for Layer 2 connectivity, client to switch via WiFi, switch to infrastructure via WiMAX;  good for campus access.
    209 
    210  4)  Virtualized WiMAX provides emergency slice;  adjust network utilization to assure good QoS for emergency slice;  reassign to accomplish dynamic provisioning.
    211 
    212  Clearwire deployments:
    213 
    214  [http://blog.connectedplanetonline.com/unfiltered/2009/12/01/clearwire-completes-2009-wimax-footprint/ 2009 rollout]
    215  Atlanta, Baltimore, Chicago, Las Vegas and Philadelphia
    216  I-5 cooridoor in Portland, Eugene and Salem, Ore.
    217  In North Carolina, it has live networks in Charlotte, Greensboro and Raleigh as well as the surrounding cities.
    218  Hawaii launch includes not just the main city of Honolulu but the population centers on the island of Maui.
    219  
    220  [http://connectedplanetonline.com/3g4g/news/clearwire-sprint-kick-off-4G-0329/ 2010 plans]
    221  Texas:  Abilene, Amarillo, Austin, Corpus Christi, Dallas, Fort Worth, Houston, Killeen/Temple, Lubbock, Midland/Odessa, San Antonio, Waco and Wichita Falls
    222 Boston, Denver, Kansas City, Los Angeles, Miami, New York City, San Francisco and Washington, D.C., are all scheduled for launch this year
    223  Part of a 15-city plan targeting the country’s largest markets. In 2009,
    224                
    225 4:30pm, adjourn [[BR]]
    226                
     246=== Demo Session ===
    227247
    228248Note:  Everyone is invited to attend Demo at ORBIT/WiMAX demo at demo session on 3/16, 5:30pm - 8:30pm[[BR]]   
     
    231251    2) Poster and table space for GENI BaseStation Kit hardware [[BR]] 
    232252
     253=== Dinner ===
     254
    233255Note:  Everyone is invited to a WiMAX BOF dinner (or beer) event on Tuesday evening, starting at 8:45pm at [http://www.washingtondukeinn.com/Dining/bull_durham_bar.asp Bull Durham Bar] in the GEC hotel;  please respond at http://www.doodle.com/hmmbrzdb4sgdtrbp [[BR]]             
    234256