1. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: [Comments for TG3c-selection criteria document]
Date Submitted: [January 4, 2006]
Source: [Hiroshi Harada1, Ryuhei Funada1, Yoshinori Nishiguchi1, Chang-Soon Choi1, Yozo Shoji1, Shuzo Kato1, Ichihiko Toyoda2 , Kazuaki Takahashi3, Kenichi Kawasaki4 , Hiroyuki Nakase5]
Company [NICT1, Maspro2, NTT3, Panasonic4, SONY5 , Tohoku University6]
Address1[3-4 Hikari-no-oka, Yokosuka-shi, Kanagawa , Japan]
Address2[1-1 Hikari-no-oka, Yokosuka-shi, Kanagawa , Japan]
Address3[4-12-4, Higashi-Shinagawa, Shinagawa-ku, Tokyo , Japan]
Address4[ Kita-Shinagawa, Shinagawa-ku, Tokyo , Japan]
Address5[2-1-1 Katahira, Aoba-ku, Sendai-shi, Miyagi , Japan]
Voice:[ , , , , ]
FAX: [ , , , , ]
, ]
Re: []
Abstract: [Give some comments for IEEE P c]
Purpose: [To be considered in 15.3c technical requirement by computer simulation]
Notice: This document has been prepared to assist the IEEE P It is offered as a basis for discussion and is not binding on the contributing indivisual(s) or organization(s). The material in this document is subject to change inform and content after study. The contributor(s) reserve(s) the right to add, amend or withdrqw material contained herein.
Release: The contributors acknowledge and accept that this contribution becomes the property of IEEE and may be made publicly available by P
Hiroshi Harada, NICT
<author>, <company>

2. Comments for TG3c-selection Criteria Document
<month year>
doc.: IEEE <doc#>
Comments for TG3c-selection Criteria Document
Hiroshi Harada, Ryuhei Funada, Yoshinori Nishiguchi,
Chang-Soon Choi, Yozo Shoji, Shuzo Kato (NICT),
Kazuaki Takahashi (Panasonic), Ichihiko Toyoda (NTT),
Kenichi Kawasaki (Sony)
,and Hiroyuki Nakase (Tohoku University)
Hiroshi Harada, NICT
<author>, <company>

3. Summary of this document
<month year>
doc.: IEEE <doc#>
Summary of this document
Give some comments for TG3c Selection Criteria Document (P c)
Hiroshi Harada, NICT
<author>, <company>

4. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
Comment 1
4.1.2 Values
Complexity estimates should be provided in terms of both analog and digital die size estimates, semiconductor processes, specified year for process technologies, gate count estimates, and major external components. Similar considerations should be made with regard to MAC enhancements. Reasonable and conservative values should be given. Relative comparisons to existing technologies are acceptable.
The conditions are not MANDATORY issue from the proposers. The proposers will show the information (analog and digital die size etc.) if they need as one of additional features.
Hiroshi Harada, NICT
<author>, <company>

5. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
Comment 2
4.4.2 Values
Scalability parameters include; power consumption, PHY-SAP Payload Bit Rate and Data Throughput, channelization (physical or coding), complexity, range, frequencies of operation, occupied bandwidth of operation, and other functions deemed appropriate.
The conditions of “power consumption” and “complexity” are not MANDATORY issue from the proposers. The proposers will show the information if they need as one of additional features.
Hiroshi Harada, NICT
<author>, <company>

6. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
Comment 3
5.1.1 Definition
Supplements and modifications to the MAC will be required to accommodate the alternate PHY. The modified MAC should stay backwards compatible to the current IEEE MAC.
IEEE MAC -> IEEE MAC and IEEE b-2003 MAC ?
Hiroshi Harada, NICT
<author>, <company>

7. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
Comment 4
Packet overhead
There is no definition on T_SIFS
In fig.2, T_PA_INT -> T_PA_INITIAL ?
A table is needed to show all of parameters such as packet over head or PHY-SAP payload bit rate (samples are shown in the next slide)
Data Throughput
In the equation of Data_Throughput_No_Ack, T_MPDU -> T_PAYLOAD ?
In the equation of Data_Throughput_Imm_Ack, T_MPDU -> T_PAYLOAD ?
Hiroshi Harada, NICT
<author>, <company>

8. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
Sample table
Hiroshi Harada, NICT
<author>, <company>

9. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
Comment 5
6.6 Link budget
Values
Oxgen absorption losses are not needed to be consider ?
There are no caption for the table in page 23.
In the table in page 23, the items in path loss at d m are dependent on usage model. “x dB at d meters “ are adequate notation.
Hiroshi Harada, NICT
<author>, <company>