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insatiable
Joined: 16 Mar 2009
Posts: 19
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 21 Apr 2009 5:13 cooperative communication |
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hi,all.
i have some questions about the cooperative communication, since there is some formulas puzzle. if you do some research about cooperative communication, could you give me your email adress. i will send the question to you.
thanks
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aliazmat
Joined: 14 Mar 2008
Posts: 77
Helped: 3
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21 Apr 2009 13:42 Re: help!cooperative communication! |
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| It would be nice if you put your question on the group.
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insatiable
Joined: 16 Mar 2009
Posts: 19
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22 Apr 2009 5:44 Re: help!cooperative communication! |
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hi all
here is my question. in Dr.lanmean's paper'Cooperative diversity in wireless networks. Efficient protocols and outage behavior' some relay protocols were proposed. all of them could get the full diversity in the high SNR, except the decode-and-forward protocol, it said the reason is "becasue requiring the relay to fully decode the source information limits the performance of decode-and-forward to that of direct transmission between the source and relay." here i can not understand why the perfromance of the link between S and R could make the diversity gain is only one. can anyone explain it? thanks
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22 Apr 2009 5:44 Ads |
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aliazmat
Joined: 14 Mar 2008
Posts: 77
Helped: 3
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21 Aug 2009 14:44 Re: help!cooperative communication! |
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This is a good question.
anybody has some answers to it ?
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deikwan
Joined: 26 Jun 2009
Posts: 1
Location: japan
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05 Nov 2009 4:14 Re: help!cooperative communication! |
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hi there,
from my understanding, a typical decode-n-fwd(DF) suffers from error prpagation if the decoder fails, n hence, the scheme can't achieve divesity order as desired. There are few journals working on improving this technique soft DF bySneessens, adaptive DF by Fricke..
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