RE: [manet] What is the difference between TDM and TDMA?
"Amoakoh Gyasi-Agyei" <a.gyasi-agyei@cqu.edu.au> Wed, 17 August 2005 23:44 UTC
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Subject: RE: [manet] What is the difference between TDM and TDMA?
Date: Thu, 18 Aug 2005 09:35:22 +1000
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Thread-Topic: [manet] What is the difference between TDM and TDMA?
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From: Amoakoh Gyasi-Agyei <a.gyasi-agyei@cqu.edu.au>
To: "Farrag, Osama" <Osama.Farrag@jhuapl.edu>, MANET Newsgroup <manet@ietf.org>
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Leon, The main difference between tdm and tdma (also fdm/fdma, etc) is that with tdm (also fdm, etc.) the signals multiplexed (i.e. sharing a resource) come from the same node, whereas for tdma (also fdm, etc.) the signals multiplexed come from different sources/transmitters. This is the reason why we use tdm for downlink (forward link) and tdma for uplink (reverse link). Cheers, Amoakoh -----Original Message----- From: manet-bounces@ietf.org [mailto:manet-bounces@ietf.org] On Behalf Of Farrag, Osama Sent: Thursday, August 18, 2005 9:16 AM To: MANET Newsgroup Subject: RE: [manet] What is the difference between TDM and TDMA? Leon, - Time Division Multiplexing (TDM) imply partitioning the bandwidth of the channel connecting two nodes into finite set of time slots. - Time Division multiple Access (TDMA) imply partitioning the bandwidth of a channel shared by many nodes, typically an infrastructure node and several mobile nodes, where each node gets to access its dedicated time slot. Hope this helps Osama Farrag -----Original Message----- From: manet-bounces@ietf.org [mailto:manet-bounces@ietf.org] On Behalf Of Leon Martin Sent: Wednesday, August 17, 2005 5:59 PM To: MANET Newsgroup Subject: [manet] What is the difference between TDM and TDMA? See the title for the question. Thanks. - Leon ____________________________________________________ Start your day with Yahoo! - make it your home page http://www.yahoo.com/r/hs _______________________________________________ manet mailing list manet@ietf.org https://www1.ietf.org/mailman/listinfo/manet _______________________________________________ manet mailing list manet@ietf.org https://www1.ietf.org/mailman/listinfo/manet _______________________________________________ manet mailing list manet@ietf.org https://www1.ietf.org/mailman/listinfo/manet
- [manet] What is the difference between TDM and TD… Leon Martin
- RE: [manet] What is the difference between TDM an… Farrag, Osama
- RE: [manet] What is the difference between TDM an… Amoakoh Gyasi-Agyei
- RE: [manet] What is the difference between TDM an… Farrag, Osama