Balanced uplink scheduling for dedicated return channel of future broadcast TV

To satisfy interaction between users and service providers (SP) in lots of rural areas without enough communication infrastructure, a dedicated return channel for the terrestrial digital TV is demanded. Therefore, we propose a specification on Dedicated Return Channel (DRC) based on SC-OFDMA technique for future broadcast, and promote it to Advanced Television Systems Committee (ATSC). To efficiently utilize the wireless resources of the uplink channel and support large number of users and wide coverage areas, scheduling among multiple users is the most important part. In this paper, we propose a balanced uplink scheduling (BUS) algorithm in order to meet Quality of service (QoS) requirements of large amount of users and make full use of user diversity, frequency diversity and time diversity at the same time.