Please click the link below for your operating system to download the TSG SysInfo Utility. Click on "Save File" then double-click the file to run it. Copy and paste the report in your initial post. Windows 7 and later (downloads a file named tsginfo.exe) | Windows XP (downloads a file named SysInfo.exe)

diff. b/w QPSK and QAM4

2577 Views 1 Reply 2 Participants Last post by O111111O, Jan 14, 2007

DonChoudhry

Discussion Starter · Jan 13, 2007

Hi,

both the modultion schemes look same to me and both delivers 2 bits per seconds. Why do they have differenr names? Is there a dfference b/w them in some way?

Thanks

Save

Status: Not open for further replies.

1 - 1 of 2 Posts

Nope. 4-QAM is in fact QPSK. 2-QAM is BPSK. QPSK was just developed first.

There is a difference between OQPSK and 8-QAM. The offset of the quadrature density is higher, and gives higher bit rate.

The n-QAM nomenclature started later in life. Much like OCn.

Save

1 - 1 of 2 Posts

Status: Not open for further replies.

Top Contributors this Month