These should be purchased through a travel agent before you come to Brazil. Taxis and buses connect the international terminal with major hotels. If you choose to use a taxi, please keep in mind that the safest taxis are those with booths located inside the airport terminal. Special transportation by car can also be provided. Ask your hotel for guidance and bus numbers.
Bus stops are close by.
On campus signs will guide you to the hall with reception desk. It recommends reservations, but thinks that travelers will almost always find some place to stay in the CFB area of inexpensive hotels. Inexpensive busses and moderately priced taxis will take you to the conference site easily from either location. The CFB area is less expensive, and the beach is on the bay rather than on the ocean. The LC hotels are more expensive, but are right near Copacabana beach, which is large, quite clean, and has ocean waves breaking on it.