This blog post discusses a paper by Claudio Maccone titled "Interstellar Radio Links Enhanced by Exploiting the Sun as a Gravitational Lens". I wasn't able to

This blog post discusses a paper by Claudio Maccone titled "Interstellar Radio Links Enhanced by Exploiting the Sun as a Gravitational Lens". I wasn't able to find this particular paper online, but it looks like there are some similar ones which are available.