The IEEE database http://ieeexplore.ieee.org.liverpool.idm.oclc.org/ is currently experiencing difficulties when accessed offcampus (using our Library login server).
The issue has been reported.
A workaround is to install the UoL Citrix application https://www.liverpool.ac.uk/csd/apps-anywhere/getting-started/citrix-for-windows/ then run a Web browser such as Internet Explorer from Citrix, this provides a connection to access UoL Web content and databases as if you were on-campus.
You can open a Web browser from Citrix to access IEEE at its normal commercial URL http://ieeexplore.ieee.org and search for your required article by title/author etc.
We apologise for any inconvenience.