Accommodation is available in the student Residences on the Carleton Campus. Staying on campus is the most convenient option.
The Glebe and Old Ottawa South are near (walking distance) to Carleton University.
Bank St. goes through both of these neighbourhoods and has many restaurants and interesting shops along its route.
B&B or AirBnB Locations in these two neighborhoods are quite close to the university.
Alt Hotel (https://www.althotels.com/en/ottawa/ )