Ultra Wideband IEEE 802 15 4 a Channel

Ultra Wideband IEEE 802. 15. 4 a Channel Model and Simulation Mohammad Alkhodary Ali Al Saihati 200806080 200350130 EE 578 Simulation Communication Systems Case Study (101) Phase II KFUPM Ultra Wideband Channel Model and Simulation 1/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Environment Parameterization and channel impulse response References Ultra Wideband Channel Model and Simulation 2/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References Introduction In UWB we have to control the output power perfectly in order to avoid the interference with other systems The channel effects play an important factor in UWB signal detection, due to power limitation and sever multipath effects. We have to consider any obstacle or channel effects, distinguish between narrow and broad environments and line of Sight and Non Line of Sight propagation. It’s an important to know the profile of the channel and statistical model of paths arrival time to be used in Rake receiver. Ultra Wideband Channel Model and Simulation 3/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References Overview of the Considered Environment 1) Indoor residential 2) Indoor office 3) Industrial environments: are characterized by larger enclosures (factory halls), filled with a large number of metallic reflectors. This is anticipated to lead to severe multipath. 4) Body-area network (BAN): communication between devices located on the body, e. g. , for medical sensor communications, "wearable" cellphones, etc. Due to the fact that the main scatterers is in the near field of the antenna, and the generally short distances, the channel model can be anticipated to be quite different from the other environments. 5) Outdoor: suburban-like microcell scenario, with a rather small range. 6) Agricultural areas/farms: for those areas, few propagation obstacles (silos, animal pens), with large dististances in between are present. Delay spread can thus be anticipated to be smaller than in other environments Ultra Wideband Channel Model and Simulation 4/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References Generic Channel Model Pathloss Shadowing Ultra Wideband Channel Model and Simulation 5/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References Generic Channel Model Power Delay Characteristics According to a very short pulse therefore multipath components arrive in Poisson distributed clusters. Furthermore, within each cluster, the path arrivals are also described by a Poisson process. Both cluster interarrival times and path interarrival times, are thus exponentially distributed with model parameters that are experimentally determined Ultra Wideband Reflection Clusters of large shifted pulses Diffraction Clusters of small shifted pulses Scattering Clusters of overlapping pulses Channel Model and Simulation 6/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References Generic Channel Model Ultra Wideband Channel Model and Simulation 7/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References Channel Parameters Ultra Wideband Channel Model and Simulation 8/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References valid up to 20 m Ultra Wideband Channel Model and Simulation 9/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References Residential LOS Channel Response Ultra Wideband Channel Model and Simulation 10/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References Residential NLOS Channel Response Ultra Wideband Channel Model and Simulation 11/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References valid for 2 -28 m Ultra Wideband Channel Model and Simulation 12/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References Indoor office LOS Channel Response Ultra Wideband Channel Model and Simulation 13/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References Indoor office NLOS Channel Response Ultra Wideband Channel Model and Simulation 14/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References Covered area 2 -8 m Ultra Wideband Channel Model and Simulation 15/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References Outdoor LOS Channel Response Ultra Wideband Channel Model and Simulation 16/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References Outdoor NLOS Channel Response Ultra Wideband Channel Model and Simulation 17/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Ultra Wideband Channel parameters Parameterization and channel impulse response References Channel Model and Simulation 18/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References Industrial LOS Channel Response Ultra Wideband Channel Model and Simulation 19/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References Industrial NLOS Channel Response Ultra Wideband Channel Model and Simulation 20/22

Outlines Introduction Overview of the Considered Environment Generic Channel Model Channel parameters Parameterization and channel impulse response References Andreas F. Molisch, Kannan Balakrishnan, Chia-Chin Chong, “IEEE 802. 15. 4 a channel model - final report. Alexander M. Haimovich, Jason A. Dabin, “THE EFFECTS OF ANTENNA DIRECTIVITY ON PATH LOSS AND MULTIPATH PROPAGATION IN UWB INDOOR WIRELESS CHANNELS” IEEE signal process journal Jose L. Paredes, Gonzalo R. Arce, “Ultra-Wideband Channel Estimation” , IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING, VOL. 1, NO. 3, OCTOBER 2007 Ultra Wideband Channel Model and Simulation 21/22

Thank You 22/22