If there is a way on your router, we'd have to know the router.
There is also issues with security. Who says it's you using this connection? I wrote WEP is dead (so is mac filters) at http://forums.cnet.com/5208-6132_102-0.html?forumID=32&threadID=242736&messageID=2457489
There is also NETMETER (some software) you can install but that just adds more for your computer to do.
I?m using a wifi connection w/ 2 people and sometimes notice the connection is slower. Is there a way to point out who?s using the most bandwith? Can I actually view stats of all the users? If so, how?