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 transcript:

doc.: IEEE /388r0 Submission 11/00 Nada Golmie, NISTSlide 1 IEEE P 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 USA

doc.: IEEE /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

doc.: IEEE /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 (a, b) on Bluetooth MAC results (based on an analytical interference model), 00/322r0. Nov00 Interference of b on Bluetooth MAC results (based on integrated MAC - 00/134r1 and PHY- 00/308r0, 00/372r0,) simulation models), 00/388r0.

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

doc.: IEEE /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

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

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

doc.: IEEE /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.

doc.: IEEE /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

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

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

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

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

doc.: IEEE /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