There are a couple traditions that people follow when it comes to wedding ceremonies.
The first is the Bride arriving late. Believe it or not, after thorough researching, Samantha has been unable to find anything to substantiate this tradition. But it is something that almost every Bride does. Just be mindful of the many people that are waiting for you at your ceremony location.
The second is the Bride being walked down the aisle by her father. In this day and age, sometimes Brides walk down on their own or even with their Groom - the choice is entirely yours.
Everyone is different - so do what is right for you!