I would like to look for hotel near China Exhibition center

I would like to take part the exhibition BMEXPO China 2012 at China International Exhibition Center Beijing- Address: 6 East Beisanhuan Road, Chaoyang District, Beijing and I want to book one hotel nearing this center. After surfing internet I get 3 hotels ( Radission Blue Hotel, Hilton Beijing Hotel and Renaissance Beijing Hotel) but I do not know their distance with Exhibition Center- In fact I would like to look for the nearest one- It is kindly if you send me infor about these hotel distance( how many kilometer from hotel to this Center) as well as refer me some nearer than these.
Look forward to receiving your answer letter