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 transcript:

doc.: IEEE /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

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

doc.: IEEE /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 have the same percentage of medium busy time and

doc.: IEEE /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

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

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

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

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

doc.: IEEE /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 device detection, e.g., microwave

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

doc.: IEEE /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

doc.: IEEE /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

doc.: IEEE /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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