Comparison in the narrative structure of the two books  Matigari by Ngugi and  One day in the life of Ivan Denisovich by Aleksandr Solzhenitsyn

I have to compare two aspects of the narrative structures of these two books.
There two aspects are:
The use of a resstricted timeframe and how this plays an important part in the two books.
The use of a cyclical structure in the two books and how this plays an important role.

I also have a first draft that is typed up so if it is required I can send this.