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    April 2011 Title doc.: IEEE 802.11-11/0552r2

    IEEE P802.11 Wireless LANs

    Submission

    Designator: doc.: IEEE 802.11-11/0552r2

    Venue Date: April 2011

    First Author Ron Porat, Broadcom

    Subject: Link Budget

    Full Date: 2011-04-19

    Author(s): Ron Porat

    Broadcom

    16340 West Bernardo Drive San Diego CA

    858-521-5409

    Fax:

    [email protected]

    Abstract: The file provides a basic link budget to assess 11ah range vs. rate tradeoff under varioustransmit power and path loss options

    Submission 1 Ron Porat, Broadcom

    mailto:[email protected]:[email protected]
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    April 2011 Instructions doc.: IEEE 802.11-11/0552r2

    802.11 Spreadsheet Template InstructionsTo properly identify your Excel spreadsheet as an IEEE 802.11 Submissionthere are 4 steps that you must complete, and 9 data fields that you must fill in.

    Step 1. Obtain a document number.

    Step 2. Title sheet - fill in the document designator, venue date (e.g. March 2005), first author'sname, spreadsheet subject title text, full date (in the ISO 8601 format of YYYY-MM-DD), thecomplete author(s) details and the abstract text (a total of 7 data fields).

    Document designator example "doc.: IEEE 802.11-04/9876r0" , or"doc.: IEEE 802.11-04/9876r2"

    Step 3. Menu select File, Properties. Fill in the 2 data fields:Author field = first author's nameCompany field = first author's company name

    Step 4. Delete this instructions sheet.

    Excel Spreadsheet Submission Preparation Summary:

    Things to do: 4 Fields to fill in: 9

    Recommendations:

    a) Always start a new document using the template, rather than using someone else's document.b) For quick and easy creation of new 802.11 submissions, place the 802.11 template files in thetemplate folder area on your computer. Typical locations are:

    c:\Program Files\Microsoft Office\Templates\802.11, or,c:\Documents and Settings\User Name\Application Data\Microsoft\Templates\802.11

    To create a new submission, menu select File, New, then select the appropriate 802.11 template file.[scroll down this sheet for more instructions]c) When you update or revise your document, remember to check all 7 fields in step 2 for the

    correct values.d) When saving your spreadsheet, select the Title sheet so that the title sheet will be the first thingreaders see when they open the file.

    e) The template, and hence your submitted spreadsheet, contains a macro to set the worksheetheaders and footers from the data entered on the Title sheet. The presence of the macros may cause

    a warning message to appear on some systems when the file is opened. You may safely disable themacros when opening the file, unless you intend to print one or more worksheets. Prior to printing,open the file with the macros enabled.

    rev: de2004-11-18

    Submission 2 Ron Porat, Broadcom

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    April 2011 Instructions doc.: IEEE 802.11-11/0552r2

    Submission 3 Ron Porat, Broadcom

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    April 2011 Sheet1 doc.: IEEE 802.11-11/0552r2

    Assumptions:

    Path Loss formula - A+Blog10(d) d in meters

    A and B values below are based on LTE Macro formula (contribution 272 slide 3

    Total path loss assumes one shadowing standard deviation

    Tx Power [dBm] 30 Maximum

    Antenna Gain [dB] Tx & Rx 3

    A 8.1

    B 37.6

    Shadowing std [dB] 8

    N0 [dBm/Hz] -174

    Noise Figure [dB] 7

    Bit rate [Kbps] 200

    Eb/No with convolutional coding at BER=1e-5 4.5 in 802.11 s

    Implementation Loss [dB] 3Multipath Fading Loss [dB] 3

    Minimum Sensitivity [dBm] -103.5

    Link Budget [dB] 136.5

    Maximum Range [m] 1595

    Submission 4 Ron Porat, Broadcom

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    April 2011 Sheet1 doc.: IEEE 802.11-11/0552r2

    )

    ower in the US 900MHz band

    Antenna height (m) 15

    Frequency (MHz) 900

    ensitivity is typically measured with respect to PER of 4K bytes packets

    Submission 5 Ron Porat, Broadcom

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    April 2011 References doc.: IEEE 802.11-11/0552r2

    References:

    Submission 6 Ron Porat, Broadcom