1. doc.: IEEE 802.15-08-0801-03 Submission November 2008 EunTae Won, SamsungSlide 1 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: VLC comment resolution for PAR and 5C comments Date Submitted: 12 November 2008 Source: Eun Tae Won, Samsung Electronics Contact: Eun Tae Won, Samsung Electronics Voice: E-Mail: etwon@samsung.com Re: Abstract: Comment resolution for PAR and 5C Purpose: 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.

2. doc.: IEEE 802.15-08-0801-03 Submission November 2008 EunTae Won, SamsungSlide 2 802.15.7 PAR Comments Received from 802.11 RF stands for Radio Frequencies, as an acronym, you should spell it out on first usage in 5.5 purpose. –Agree- spelled out on first use in Sections 5.4 and 5.5. Why call out RF interference when you state that the band in use is outside the RF band? Visible light is free of non-visible interference, but that should not be used in the definition of the scope and purpose. The Scope and Purpose should deal specifically with the stated spectrum and not counter examples. –It is first mentioned in the Purpose and Need and not in the scope. We have taken a conservative approach to ensure better understanding of where this fits in the grand scheme of things. It also makes it obvious that this provides an inherently non interfering communications scheme. All the semicolons in the scope statement should be commas. –Agree, replaced by commas Have you considered the Mirror in the Middle attack? –We adopted the same approach that 802.11 used to deal with the microwave oven in the middle attack

3. doc.: IEEE 802.15-08-0801-03 Submission November 2008 EunTae Won, SamsungSlide 3 802.15.7 PAR Comments Received from "Ronald Petersen" Please explain "health" in the following phrase in the Scope: "...impairments due to noise and interference from, e.g., ambient light; health and other environmental effects:... Response: This was an artifact that did not belong there. It has been removed.

4. doc.: IEEE 802.15-08-0801-03 Submission November 2008 EunTae Won, SamsungSlide 4 802.15.7 PAR Comments Received from 802.3 The PAR scope is deficient in that it does not address the medium. This should not be addressed only in the PAR Purpose. –The phrase “optically transparent media” has been added to the PAR scope Section 5.2 Please include within the project documents a commitment to include a PICS proforma in the initial version of the standard. –Agree, commitment is included in Section 8.1 of the PAR