Service curve proportional sharing algorithm for service-guaranteed multiaccess in integrated-service wireless networks

Previously, we systematically developed packetized service curve processor sharing (PSCPS) scheduling policy for multimedia distributed networks. In this paper, we consider PSCPS in a special kind of distributed environments, wireless channels. Due to multi-path fading and interference distortion, the error characteristics of wireless channels are even bursty and time-varying. By accounting error control mechanisms, the fluctuation of error behavior can be equivalently regarded as the channel capacity is time-varying for a fixed bit-error-rate. We apply the “change of time” technique to transform PSCPS to a scheduler operating with a time-varying capacity with the service curve guarantees still maintained. The “virtual time implementation” of PSCPS proposed previously is also modified so that it can work properly with time-varying capacity