Ht. Zheng et Kjr. Liu, Power minimization for delivering integrated multimedia services over digital subscriber line, IEEE J SEL, 18(6), 2000, pp. 841-849
We study the problem of designing an efficient resource allocation scheme i
n the application of providing integrated multimedia services over digital
subscriber line. For a predefined quality of service (QoS) requirement and
data throughput, me show that the transmitted power consumption can be redu
ced by applying the parallel transmission framework previously proposed. Da
ta streams are recognized as a set of layers with different data rate and b
it error rate requirements. The characteristics of the telephone channel ca
n be utilized to provide unequal error protection naturally and thus effici
ently, Simulation results provide comparison of the proposed parallel trans
mission framework to the existing schemes designed for general data, and de
monstrate significant performance improvement, such as 0.5-2 dB power gain.