Both East Midlands clubs are competing with Crystal Palace and Bolton Wanderers to finish in the last two playoff places.
Guedioura has admitted that Saturday's clash at the City Ground is an ideal scenario for a side that is playing to win.
"It is good to be tense because that makes you focus," BBC Sport quotes Guedioura as saying.
"It is better to play a team that have something to play for. [Leicester] will make it hard for us, but that will only make us concentrate more.
"To play in a big game like this is what you want as a player, it is something special and will be a privilege to be part of. It is like a cup final - we are all excited."
Forest currently sit outside of the playoff places on goal difference.