COAX Wireless???

I have cable TV outlets in my living room and m bedroom, but none in my computer room. I was wondering if there is a wireless transmitter/receiver that will connect to a coax line in my living room and transmitt through a wireless network to a receiver in my computer room. Running cords through walls is not an option as I am in the military and live in base housing where this is not allowed. ANy insight into any products would be very helpful.