Subject: Additional JTC fader documents for the SCM AHG
Date: Mon, 13 Jan 2003 17:23:16 -0600
From: "Young Yoon (EWU)" <Young.Yoon@ewu.ericsson.se>
To: "'Achilles Kogiantis'" <achilles@lucent.com>
CC: Bo Göransson (EAB)<Bo.Goransson@era.ericsson.se>

Dear Achilles,

As a follow-up to your call for all relevant documentation on the JTC fader
last week, I am sending you:

1.  Detailed documentation of an earlier version of the JTC (Joint Technical
Committee) fader sent out previously on the 3GPP2 WG3 reflector by Stein
Lundby.  There apparently exists a more recent version from which the JTC
fader (currently adopted by WG3) is based upon.

2.  an e-mail mentioning the deviation between the autocorrelation function
and Bessel function as the time-difference increases sent out previously on
the 3GPP2 WG3 reflector by Sandip Sarkar.

If they are of use, would you be able to send it out on the reflector?  I am
encountering difficulties accessing the SCM server.

Regards,
Young

Young C. Yoon, Ph.D.

Ericsson Wireless Communications, Inc
6455 Lusk Blvd
San Diego, CA 92121, USA

Tel:      (858) 332-5286
Fax:     (858) 332-7388
e-mail:  y.yoon@ericsson.com

<<4JT-065R5.doc>> <<FW: [tsgcwg3] Jakes model vs the JTC fader>>

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   4JT-065R5.doc    Type: WINWORD File (application/msword)
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Subject: FW: [tsgcwg3] Jakes model vs the JTC fader
Date: Tue, 3 Dec 2002 13:14:47 -0600
From: "Tao Wu (EWU)" <Tao.Wu@ewu.ericsson.se>
To: "Young Yoon (EWU)" <Young.Yoon@ewu.ericsson.se>


-----Original Message-----
From: Sandip Sarkar [mailto:ssarkar@qualcomm.com]
Sent: Wednesday, November 20, 2002 12:31 PM
To: TSG-C Working Group 3
Subject: [tsgcwg3] Jakes model vs the JTC fader

> The Jakes model of simulation (as opposed to the "Jakes spectrum") is
> unsuitable for most system level simulations. There are known problems
> with it, particularly with correlations between users (pointed out in
> [1]). There have been several papers since then that have made
> improvements to the original Jakes model. But it is still an object of
> investigation and one cannot have enough confidence in results using it.
> Even for single users, the autocorrelation deviates from the Bessel
> function as one goes out far enough.
>
> Reference
> [1] P. Dent, G.E. Bottomley, T. Croft, "Jakes Fading Model Revisted,"
> Electronics Letters,
> pp. 1162-1163, 24 June 1993.

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