Adaptive Error Control for Multimedia Data Transfers
نویسندگان
چکیده
In this paper we suggest the need for a new class of transport service to handle the requirements of digital continuous-media data transfers and other applications that may desire to trade off data completeness for latency considerations. Specifically, we define a Partially Error-Controlled Connection service under which the user submits applicationand endsystem-specific parameters to coordinate the protocol’s use of data retransmissions for error recovery with latency concerns. We implement a prototype of this service as a lightweight implementation enhancement to an existing protocol, the Xpress Transfer Protocol. Measurements of our implementation suggest that the PECC approach can provide for a service that limits the frequency and duration of data loss, which a non-error-controlled service can not do, while avoiding the delay-insensitivity of traditional error control in a fully reliable connection.
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تاریخ انتشار 1992