ACM has decided to allow open access to every article in ACM DL until June 30, to help people doing remote works due to COVID-19. I found this by checking my papers in ACM DL. I believe this is a great decision of ACM.
A paper about GCMA project has accepted to a top-level computer science journal, Transactions on Computers[1]. It will be published soon.
[1] https://www.computer.org/web/tc