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What is difference between OFDM and GFDM?

Started by Unknown April 1, 2015
Hi,

I am trying to understand the difference(s) between OFDM and GFDM which are
used as a multicarrier modulation techniques in wireless communication. As
far as I know the OFDM uses the orthogonal subcarriers and the GFDM is with
the  non-orthogonal subcarriers when designing a transmitter. 

Could anyone please explain further about their design and differences?
What is the purpose of using GFDM when designing a transmitter?

In GFDM, how does the IFFT block work when creating the subcarriers?

Thanks in Advance!

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Posted through http://www.DSPRelated.com
>Hi, > >I am trying to understand the difference(s) between OFDM and GFDM which
are
>used as a multicarrier modulation techniques in wireless communication.
As
>far as I know the OFDM uses the orthogonal subcarriers and the GFDM is
with
>the non-orthogonal subcarriers when designing a transmitter. > >Could anyone please explain further about their design and differences? >What is the purpose of using GFDM when designing a transmitter? > >In GFDM, how does the IFFT block work when creating the subcarriers? > >Thanks in Advance! > >--------------------------------------- >Posted through http://www.DSPRelated.com
I would appreciate if someone could help me on this.Thanks! --------------------------------------- Posted through http://www.DSPRelated.com
On Thu, 02 Apr 2015 10:30:30 -0500, "" wrote:

>>Hi, >> >>I am trying to understand the difference(s) between OFDM and GFDM which > are >>used as a multicarrier modulation techniques in wireless communication. > As >>far as I know the OFDM uses the orthogonal subcarriers and the GFDM is > with >>the non-orthogonal subcarriers when designing a transmitter. >> >>Could anyone please explain further about their design and differences? >>What is the purpose of using GFDM when designing a transmitter? >> >>In GFDM, how does the IFFT block work when creating the subcarriers? >> >>Thanks in Advance! >> >>--------------------------------------- >>Posted through http://www.DSPRelated.com > > I would appreciate if someone could help me on this.Thanks! > --------------------------------------- > Posted through http://www.DSPRelated.com
If I knew what GFDM was, I would. -- www.wescottdesign.com
On 02/04/15 16:30, 100271@DSPRelated wrote:
>> Hi, >> >> I am trying to understand the difference(s) between OFDM and GFDM which > are >> used as a multicarrier modulation techniques in wireless communication. > As >> far as I know the OFDM uses the orthogonal subcarriers and the GFDM is > with >> the non-orthogonal subcarriers when designing a transmitter. >> >> Could anyone please explain further about their design and differences? >> What is the purpose of using GFDM when designing a transmitter? >> >> In GFDM, how does the IFFT block work when creating the subcarriers? >> >> Thanks in Advance! >> >> --------------------------------------- >> Posted through http://www.DSPRelated.com > > I would appreciate if someone could help me on this.Thanks! > --------------------------------------- > Posted through http://www.DSPRelated.com >
Have you looked at http://lmgtfy.com/?q=ofdm+vs+gfdm The fifth reference looks like a starting point. Whether that helps depends on what /kind/ of difference interests you, and on whether you have already seen the paper.