Dedicated Return Channel for ATSC 3.0

作者:He, Dazhi*; Ding, Lianghui; Guan, Yunfeng; Yang, Feng; Zhang, Wenjun; Wu, Yiyan
来源:IEEE Transactions on Broadcasting, 2016, 62(1): 352-360.
DOI:10.1109/TBC.2015.2511629

摘要

To support emerging interactive services, a consensus to include an optional, in-band dedicated return channel (DRC) for the next-generation terrestrial broadcast system (ATSC3.0) has been reached. This paper introduces the design of DRC as well as several implementation concerns. First, the network architecture, link budget, and radiation feature of DRC are described in detail. Then the requirements and detailed design of both the physical layer and the MAC layer of DRC are presented respectively. Meanwhile, the performance of DRC is evaluated and comparisons with typical techniques are carried out in terms of bit error rate, access probability, resource utilization, etc. Furthermore, the cooperation between downlink broadcast and DRC is analyzed.