Changes between Version 39 and Version 40 of Gec7ClusterEAgenda


Ignore:
Timestamp:
03/30/10 13:34:44 (11 years ago)
Author:
hmussman@bbn.com
Comment:

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  • Gec7ClusterEAgenda

    v39 v40  
    2424
    25251:05pm, Ivan Seskar:  [[BR]]
    26   Update on WiMAX Base Station and WiMAX Client Platform Kits [http://groups.geni.net/geni/attachment/wiki/Gec7ClusterEAgenda/2010-03-16%20GEC7%20WiMAX.ppt slides] [[BR]]
    27  
    28  Ivan on 3/1:  Cables from roof to equipment room include:  dual fiber;  power;  GPS receiver coax;  within 1" dimaeter.  [[BR]]
     26 [http://groups.geni.net/geni/attachment/wiki/Gec7ClusterEAgenda/2010-03-16%20GEC7%20WiMAX.ppt  Update on WiMAX Base Station and WiMAX Client Platform Kits] [[BR]]
     27
     28  Ivan on 3/1:  Cables from roof to equipment room include:  dual fiber;  power;  GPS receiver coax;  within 1" dimaeter.  [[BR]]
    2929 
    3030 Ivan:  Inclusion and choice of GPS antenna, for timing to base station  [[BR]]
     
    5959 Henning on 2/8:  Starting application process with IT.  Likely site to be on engineering building, near amateur radio station.  [[BR]]
    6060 Ivan on 3/1:  Application completed.  [[BR]]
    61  TASK:  Verify current status with Henning.  Concern about Clearwire rollout in NYC in 2010;  any clear spectrum?  Antenna 360 or 120 degree? [[BR]]
     61 TASK:  Verify current status with Henning, antenna 360 or 120 degree? [[BR]]
    6262               
    6363 Polytechnic Institute of NYU (1751)    PI: Thanasis Korakis [[BR]]
     
    6565 Thanasis on 3/1:  Application completed 2/22, for two sites:  EE and Admin buildings. Equipment expected in EE building. [[BR]]
    6666 Ivan on 3/1:  Cables from roof to equipment room include:  dual fiber;  power;  GPS receiver coax;  within 1" dimaeter.  [[BR]]
    67  Thanasis on 3/16:  Equipment in EE building 100m from antenna, antenna 360 degree [[BR]]
    68  Harry on 3/30:  Concern about Clearwire rollout in NYC in 2010;  any clear spectrum? 
     67 Thanasis on 3/16:  Equipment in EE building 100m from antenna, antenna 360 degree [[BR]]
    6968               
    7069 UCLA (1797)    PI: Mario Gerla, Giovanni Pau [[BR]]
     
    129128 Max on 3/16:  Should consider planning tools seen at 3G trade shows, to estimate ranges.  [[BR]]
    130129 
    131  Harry on 3/30:
    132  Clearwire buildout in 2009:  [http://blog.connectedplanetonline.com/unfiltered/2009/12/01/clearwire-completes-2009-wimax-footprint/  info][[BR]]
    133  Clearwire buildout in 2010:  [http://connectedplanetonline.com/3g4g/news/clearwire-sprint-kick-off-4G-0329/  info][[BR]]
    134 
    135 2:00pm, Dipankar (Ray) Raychaudhuri: [[BR]]
    136  Research use cases.  [[BR]]
    137  Please think about the research you want to do, and provide email or input on the wiki;  can help drive design of kit and software.  [[BR]]
    138                
    139 
     130
     1312:00pm, Dipankar (Ray) Raychaudhuri: 
     132 Discussion of rsearch use cases.  [[BR]]
     133 Also, send email to Harry, or input on the wiki;  can help drive design of kit and software.  [[BR]]
     134               
     135 Rutgers/WINLAB on 3/16:
     136 1)  Cache and forward architecture;  disconnected OK;  multi-hop OK;  protocol to know when to store, and when to forward;  extend to campus users;  content library
     137 2)  Vehicular; car to car;  car to infrastrucutre;  geo cache PtoP;  protocol to detect cars and then send.
     138 3)  Locations service, assuming multiple WiMAX BSs.
     139 
     140 UCLA on 3/16:
     141 1)  Vehicular networks
     142 2)  Applications:  atmospheric science;  public health;  geo routing;  store and forward.
     143 
     144 Wisconsin on 3/16:
     145 1)  Internet access, over multipel interfaces and miultiple networks
     146 2)  Public emergency services;  latency, cost, rate; 
     147 
     148 NYU Poly on 3/17:
     149 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.
     150 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.
     151 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.
     152 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.
     153 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. 
     154 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.
     155 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.
     156
     157 UMass AMherst of 3/16:
     158 1)  Integrate with current testbeds
     159 2)  Provide control over server side.
     160 
     161 BBN Technologies:
     162 1)  When is WiMAX useful;  ranges and capacities
     163 2)  Network management of entire system;  utilize clients to measure and send reprots to the site.
     164 
     165 
    1401662:30pm, break.  [[BR]]
    141167               
     
    151177               
    1521783:30pm, Gautam Bhanage, Max Ott, Ivan Seskar: [[BR]]
    153  Tutorial on WiMAX setup, including how to use OMF [http://groups.geni.net/geni/attachment/wiki/Gec7ClusterEAgenda/tutorial%20wimax%20setup%20%20GENI_GEC7_2.ppt  slides] [[BR]]
    154  NOTE:  Tutorial at Rutgers this summer, before GEC8?   [[BR]]         
     179 [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]]
     180 
     181 Tutorial at Rutgers this summer, before GEC8?  [[BR]]         
    155182                               
    1561834:15pm, Ivan Seskar: [[BR]]