
CHAPTER 13 / ALGORITHMS FOR DELTA COMPRESSION 271
several similar files that might be helpful in communicating the contents of
fnew
to the client, as
discussed later.
In the case of the file synchronization problem, many currently known protocols [ 16, 35, 49]
consist of a single round of communication, where the client first sends a request with a limited
amount of information about
fold
to the server, and the server then sends an encoding of the current
file to the client. In the case of a multiround protocol, a standard model for communication costs
based on latency and bandwidth can be employed to measure the cost of the protocol. A ...