Is Invisible Man like Shakespeare?

Looking back on the opening few chapters of Invisible Man I now see a similarity to Shakespeare's works.  Since Elizabethan times, most works of fiction don't include a prologue that explains the plot of the work.  In the prologue of Invisible Man, Ralph Ellison doesn't exactly explain what happens to the narrator, in fact he never even tells us the narrator's name.  But, the images and descriptions found in the prologue stuck in my mind as I was reading the first few chapters, and I imagine will continue to until I finish the book.  In this essence I find it similar to Shakespeare.  His prologues also stick in a reader's mind (or listener), and serve as a kind of foreshadowing for the rest of the work.  Though Shakespeare didn't write the protagonist of his play as the speaker of the prologue, while Ellison did, they both serve to create a frame narrative, a story within a story.  In a Shakespearean play, the prologue usually serves as a warning to the audience of what happens to the characters, with the chorus knowing are characters.  Likewise, the speaker of the prologue knows that the subsequent people are characters, understandably so because he is the author of the inner story.  I'm not sure yet if the narrator is cautioning the reader about the experience of the character in his book, but I bet by the end of the book it will be clear whether he was cautioning us or not; who knows, maybe the similarities to Shakespeare will grow.