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Doc.: IEEE 802.11-10/0507r1 Submission David Wong, Xiaoming Peng et al., I2R May 2010 Slide 1 Spectrum Measurement for TGad Date: 2010-05-19 Authors: NameAffiliationsAddressPhoneemail.

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Presentation on theme: "Doc.: IEEE 802.11-10/0507r1 Submission David Wong, Xiaoming Peng et al., I2R May 2010 Slide 1 Spectrum Measurement for TGad Date: 2010-05-19 Authors: NameAffiliationsAddressPhoneemail."— Presentation transcript:

1 doc.: IEEE 802.11-10/0507r1 Submission David Wong, Xiaoming Peng et al., I2R May 2010 Slide 1 Spectrum Measurement for TGad Date: 2010-05-19 Authors: NameAffiliationsAddressPhoneemail David Tung Chong Wong Institute for Infocomm Research (I2R), A*STAR 1 Fusionopolis Way, #21-01 Connexis, Singapore 65-6408-2258wongtc@i2r.a-star.edu.sg Xiaoming PengI2R, A*STARSame as above65-6408-2429pengxm@i2r.a-star.edu.sg Francois ChinI2R, A*STARSame as above65-6408-2530chinfrancois@i2r.a- star.edu.sg Xuhong QuI2R, A*STARSame as above65-6408-2477quxh@i2r.a-star.edu.sg Raymond Jararaj s/o Jayabal I2R, A*STARSame as above65-6408-2226jraymond@i2r.a-star.edu.sg

2 doc.: IEEE 802.11-10/0507r1 Submission David Wong, Xiaoming Peng et al., I2R May 2010 Slide 2 Abstract We propose a spectrum measurement technique –Allow the existing TGad network to detect another TGad network or other 60GHz network. Our scenario covers the case when both TGad network and another TGad network or other 60GHz network are in operations and the other TGad/60GHz network move into the vicinity of the existing TGad network under consideration. –The spectrum measurement will be carried out in every N beacon interval based on demand Low complexity

3 doc.: IEEE 802.11-10/0507r1 Submission David Wong, Xiaoming Peng et al., I2R May 2010 Slide 3 Spectrum measurement in MAC Structure Beacon interval m Beacon interval m+1Beacon interval m-1 …… Service Period 2 Service Period 1 Contention Based Period 2 Beacon Period Contention Based Period 1 Announceme nt Time Association Beamforming Training Station #1 sensingr eport … Quasi-omni Quiet Period Quasi-omni Reporting Period Dir. #1 …Dir. #n Dir. #1 …Dir. #n Station #m sensingr eport Mini-slots for sensing reports by all stations in direction #1.

4 doc.: IEEE 802.11-10/0507r1 Submission David Wong, Xiaoming Peng et al., I2R May 2010 Slide 4 Main Additions (1/3) The main additions to the MAC structures are the quasi-omni quiet period and the quasi-omni reporting period. There are multiple sub-quiet periods under the Quiet Period. Each sub-quiet period is used by the AP or STA to sense for the other network in their particular direction out of the n possible directions. Quasi-omni Quiet Period Quasi-omni Reporting Period Example of collaborative multi-direction sensing in the quiet period

5 doc.: IEEE 802.11-10/0507r1 Submission David Wong, Xiaoming Peng et al., I2R May 2010 Slide 5 Main Additions (2/3) Note that the initial direction of sensing by each STA should be in such a way that all stations in that sector cover different directions. –This can be assigned to the STA by the AP when it associates with the AP. –Another way is to use the STA’s MAC address and compute it. Thus, the AP and the STAs are sensing collaboratively in multiple directions as whole during the quiet period. There are also multiple mini-slots in the different directions for the STAs to report their sensing outcomes.

6 doc.: IEEE 802.11-10/0507r1 Submission David Wong, Xiaoming Peng et al., I2R May 2010 Slide 6 Main Additions (3/3) The mini-slots in different direction can be dynamically assigned to STAs by the AP when the STAs associate with the AP and indicated in a new field in the beacon period in that direction. The particular mini-slot for a STA will be removed when the STA disassociates from the AP. The AP can decide if the other TGad network is present or not, based on the data fusion rules.

7 doc.: IEEE 802.11-10/0507r1 Submission David Wong, Xiaoming Peng et al., I2R May 2010 Slide 7 Summary We propose a spectrum measurement technique to detect other TGad/60GHz network(s). –The TGad network could then move to another band. –The options for spectrum measurement cater for the case when the TGad network and another TGad/60GHz network, both in operations, come into contact. –These options can be used in every beacon interval, or once in a number of beacon intervals.

8 doc.: IEEE 802.11-10/0507r1 Submission David Wong, Xiaoming Peng et al., I2R May 2010 Slide 8 References 1.11-10-0249-02-00ad-Basic-TGad-MAC-Layer-Proposals- and-Options-for-Coexistence 2.11-09-1160-03-00ad-proposed-evaluation methodology- additions 3.11-09-0796-00-00contention-based directional MAC protocols: a survey 4.11-10-0432-02-00 ad-cp-presentation 5.11-10-0433-02-00 ad-cp-specification

9 doc.: IEEE 802.11-10/0507r1 Submission David Wong, Xiaoming Peng et al., I2R May 2010 Slide 9 Straw Poll Do you support inclusion of the technique, - Spectrum Measurement as described in 11-10/0507r1 in the TGad draft amendment? –Y: –N: –A: Slide 9

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