Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

1. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [PHY Selection Criteria Highlights] Date Submitted: [April 2004] Source: [Shahriar Emami and Celestiono A. Corral] Company [Freescale Semiconductor, Inc] Address [Freescale Semiconductor, Inc. 6100 Broken Sound Pkwy., N.W. Suite 1 Boca Raton, FL  33487-2790] Voice:[(561) 544-4064], FAX: [] Re: [802.154a baseline] Abstract: [This document captures the highlights of the PHY selection document] Purpose: [Presents the highlights of IEEE802.15.4a PHY selection criteria] Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15. Emami, Freescale

2. PHY Selection Criteria Highlights Emami, Freescale

3. Cost and Complexity • The cost/complexity of the device must be as low as possible. • Complexity estimates should be provided in terms of both: - analog and digital die size estimates - semiconductor processes - gate count estimates - major external components Emami, Freescale

4. Band, Interference and Coexistence • The frequency band to be used for the system has to be specified. • PHY should show the analysis of attributes that can be adjusted to mitigate the interference to/from coexisting systems. • The primary coexisting systems are 802.15.1, 802.11 (a, b and g), 802.15.3, 802.15.4 and microwave ovens. Emami, Freescale

5. PHY Requirements • PHY should be scalable in data rate, complexity, power consumption. • The maximum supported moving speed for both ranging and communications must be specified • Power management capabilities such as device sleep, wakeup, and poll should be supported. • For each data rate the SIFS, LIFS and packet overhead should be specified • In SOP simulations: • piconets should be uncoordinated • interfering piconet should be present over the entire packet duration and • symbol alignment between the desired and undesired piconet should be random. Emami, Freescale

6. Performance requirements - I • The minimum required sensitivity is that sensitivity which produces PER equal to or less than 1% for 32 octet PSDU when receiving a transmitted signal over the distances of 30 and 10 meters. • Proposed system should be able to meet the 1% PER when operating at 6 dB above receiver sensitivity, when the interference is present at a distance separation of 1 meter from the receiver. • If this criteria cannot be met, minimum separation distance between the interferer and the proposed system at which the PER criteria of 1% can be achieved should be specified. Emami, Freescale

7. Performance requirements - II • The distance at which the interfering piconet causes the PER associated with the desired piconet to degrade below 1% should be specified. • the false alarm and the miss detect probability for the preamble design and CCA in both AWGN and different channel models should be specified. Emami, Freescale

8. Performance requirements - III • Interfering Average Power generated by the 802.15.4a transmitter and measured in the relevant bandwidth of the victim receiver at any frequency at which that receiver operates is used as a parameter to evaluate the coexistence capability of the proposed PHY - the power is received by a 0 dBi antenna at the victim receiver end - The separation distance between transmitter and victim receiver are 1m and 0.3 m. Emami, Freescale

9. Other Requirements • Proof of manufacturability should be demonstrated by way of expert opinion, models, experiments, pre-existing examples, or demonstrations. • A time-to-market estimate must be provided. • Regions in which regulatory compliance is an issue should be identified. Emami, Freescale