Cell phone reception and wireless network?

Hi all, I've used my current cell provider for about 8 years but recently my reception at home has been terrible. I can't really receive a call at my house anymore and I can't think of what may have changed that would cause that. The provider tells me that there is a cell station (or whatever) not far from here so that is probably not the issue. I have a Linksys wireless router (WRT54G) that routes my home network and I'm wondering if maybe there is some connection? It's currently broadcasting on Channel 5. Any ideas would be appreciated. Thanks Gary