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Doc.: IEEE 802.15-00/388r0 Submission 11/00 Nada Golmie, NISTSlide 1 IEEE P802.15 Working Group for Wireless Personal Area Networks Using a combined MAC.

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Presentation on theme: "Doc.: IEEE 802.15-00/388r0 Submission 11/00 Nada Golmie, NISTSlide 1 IEEE P802.15 Working Group for Wireless Personal Area Networks Using a combined MAC."— Presentation transcript:

1 doc.: IEEE 802.15-00/388r0 Submission 11/00 Nada Golmie, NISTSlide 1 IEEE P802.15 Working Group for Wireless Personal Area Networks Using a combined MAC and PHY Simulation Model to Measure WLAN Interference on Bluetooth (Part I) Nada Golmie National Institute of Standards and Technology Gaithersburg, MD 20899 USA

2 doc.: IEEE 802.15-00/388r0 Submission 11/00 Nada Golmie, NISTSlide 2 Outline Progress Update Combined MAC and PHY Simulation Model Simulation Experiment Setup –Topology –Parameters –Traffic models Initial Results Summary Future Work

3 doc.: IEEE 802.15-00/388r0 Submission 11/00 Nada Golmie, NISTSlide 3 Coexistence Modeling Update Mar00 Start of Bluetooth MAC modeling effort, 00/66r0 May00 MAC performance metrics, 00/103r1. Bluetooth MAC results (2-state BER model), 00/134r0. Jul00 Interference of 802.11(a, b) on Bluetooth MAC results (based on an analytical interference model), 00/322r0. Nov00 Interference of 802.11b on Bluetooth MAC results (based on integrated MAC - 00/134r1 and PHY- 00/308r0, 00/372r0,) simulation models), 00/388r0.

4 doc.: IEEE 802.15-00/388r0 Submission 11/00 Nada Golmie, NISTSlide 4 MAC / PHY Interface

5 doc.: IEEE 802.15-00/388r0 Submission 11/00 Nada Golmie, NISTSlide 5 Simulation Parameters 2 Bluetooth devices and 2 WLAN devices Bluetooth Parameters (Main signal): –HV1, HV3 traffic –Power = 1 mW WLAN Parameters (Interference) –Direct Sequence 11 Mbits/s –Power = 25 mW –Center frequency = 2437 MHz

6 doc.: IEEE 802.15-00/388r0 Submission 11/00 Nada Golmie, NISTSlide 6 Topology

7 doc.: IEEE 802.15-00/388r0 Submission 11/00 Nada Golmie, NISTSlide 7 Traffic Model

8 doc.: IEEE 802.15-00/388r0 Submission 11/00 Nada Golmie, NISTSlide 8 Performance Measurements Measurements are performed at the Baseband: –Packet Loss –Residual number of errors (uncorrected errors) in the payload.

9 doc.: IEEE 802.15-00/388r0 Submission 11/00 Nada Golmie, NISTSlide 9 Error Occurrences and Packet Acceptance Decisions Error Location Action Taken Error Correction Access Code Packet Header HV1 payload HV3 payload Hamming distance, d=14 1/3 FEC No FEC Drop Accept

10 doc.: IEEE 802.15-00/388r0 Submission 11/00 Nada Golmie, NISTSlide 10 Packet Loss at Bluetooth Slave

11 doc.: IEEE 802.15-00/388r0 Submission 11/00 Nada Golmie, NISTSlide 11 Residual Number of Errors in Payload

12 doc.: IEEE 802.15-00/388r0 Submission 11/00 Nada Golmie, NISTSlide 12 Next Step Integrate 802.11b receiver –highlight feedback loop effect –obtain results for impact of Bluetooth interference on 802.11b. More results using ACL type traffic. Completed MAC and PHY simulation models integration. Presented results for impact of 802.11b on Bluetooth voice traffic (HV1 and HV3). Summary

13 doc.: IEEE 802.15-00/388r0 Submission 11/00 Nada Golmie, NISTSlide 13 … and planning for more work Finalize interference scenarios for Bluetooth and 802.11b. Consider other interference devices such 802.11 (direct sequence and frequency hopping), HomeRF, Microwave Ovens: –MAC modeling: HomeRF, MO(?) –PHY modeling:802.11, HomeRF, MO Bluetooth and 802.11 acquisition phase modeling.

14 doc.: IEEE 802.15-00/388r0 Submission 11/00 Nada Golmie, NISTSlide 14 MAC N. Golmie, NIST F. Mouveaux, NIST Acknowledgements MAC/PHY N. Golmie, NIST B. Van Dyck, NIST A. Soltanian, NIST I. Elbakkouri, NIST PHY J. Ammer, Mobilian J. Lansford, Mobilian B. Van Dyck, NIST A. Soltanian, NIST

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