The papers for a conference are limited to 3 pages. On the website, however, it says Transactions of the IEEE offers a special feature edition (whatever it means?), so I think it would be good to submit the full manuscript to this special issue. But that means I'm submitting two papers with the same title to a journal and a conference proceedings. Is that ethical? How should I deal with this?
The extended abstract is accepted. Meanwhile the special issued journal is open for submission. I contacted the editor of the journal and she said you can present your longer version in the transaction journal.
But basically I think I will use the same text and figures. Maybe 2 more pages than the conference one. Is it considered as self-plagiarism ?