出版社：The Institute of Image Information and Television Engineers
摘要：A hierarchical broadcasting system divides the digital data into several layers and transmits them with different reliability according to each layer's priority. Hierarchical broadcasting is effective for mobile receivers in which the channel quality is degraded by multi-path fading. This paper proposes a simple mobile receiving scheme to get only high priority data using simple differential detection. The differential detection not only simplifies the system, but also mitigates the degradation due to fading fluctuation. This paper also clarifies the degradation of system performance caused by simplification of the fading compensation scheme.
