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Doc.: IEEE 802.11-03/340r1a Submission May 2003 Zhun Zhong et al. PhilipsSlide 1 Medium Sensing Time Histogram Request and Report Zhun Zhong, Stefan Mangold,

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Presentation on theme: "Doc.: IEEE 802.11-03/340r1a Submission May 2003 Zhun Zhong et al. PhilipsSlide 1 Medium Sensing Time Histogram Request and Report Zhun Zhong, Stefan Mangold,"— Presentation transcript:

1 doc.: IEEE 802.11-03/340r1a Submission May 2003 Zhun Zhong et al. PhilipsSlide 1 Medium Sensing Time Histogram Request and Report Zhun Zhong, Stefan Mangold, and Amjad Soomro Philips

2 doc.: IEEE 802.11-03/340r1a Submission May 2003 Zhun Zhong et al. PhilipsSlide 2 Outline Motivation Definition Examples Implementation Conclusions

3 doc.: IEEE 802.11-03/340r1a Submission May 2003 Zhun Zhong et al. PhilipsSlide 3 Description of channel activity There are more information about the channel activity than the CCA busy fraction in the current draft can tell 1 2 1 2 have the same percentage of medium busy time and

4 doc.: IEEE 802.11-03/340r1a Submission May 2003 Zhun Zhong et al. PhilipsSlide 4 Medium Sensing Histogram Provide information about busy and idle durations Represented as probability densities of busy or idle durations Idle durationBusy duration Density 12

5 doc.: IEEE 802.11-03/340r1a Submission May 2003 Zhun Zhong et al. PhilipsSlide 5 Example Histograms

6 doc.: IEEE 802.11-03/340r1a Submission May 2003 Zhun Zhong et al. PhilipsSlide 6 Light channel load

7 doc.: IEEE 802.11-03/340r1a Submission May 2003 Zhun Zhong et al. PhilipsSlide 7 Heavy channel load

8 doc.: IEEE 802.11-03/340r1a Submission May 2003 Zhun Zhong et al. PhilipsSlide 8 Contention Free Access

9 doc.: IEEE 802.11-03/340r1a Submission May 2003 Zhun Zhong et al. PhilipsSlide 9 Other Examples CCA/Noise/NAV busy histogram to determine the minimum TXOP Noise busy histogram for non-802.11 device detection, e.g., microwave

10 doc.: IEEE 802.11-03/340r1a Submission May 2003 Zhun Zhong et al. PhilipsSlide 10 Measurement Request and Report

11 doc.: IEEE 802.11-03/340r1a Submission May 2003 Zhun Zhong et al. PhilipsSlide 11 Request Measurement NameMeasurement type Unused0-2 Channel Load Request3 Noise Histogram Request4 Beacon Request5 Frame Request6 Hidden Node Request7 Medium Sensing Time Histogram Request 8 Reserved9-255

12 doc.: IEEE 802.11-03/340r1a Submission May 2003 Zhun Zhong et al. PhilipsSlide 12 Report Measurement NameMeasurement type Unused0-2 Channel Load Report3 Noise Histogram Report4 Beacon Report5 Frame Report6 Hidden Node Report7 Medium Sensing Time Histogram Report 8 Reserved9-255

13 doc.: IEEE 802.11-03/340r1a Submission May 2003 Zhun Zhong et al. PhilipsSlide 13 Conclusions Idle/busy time histograms provide more information than just the percentage of medium busy time An extension of current measurement types

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