Binary Codebook Design for Broadcast System with Low Cost Receiver

Broadcast system that provides low data rate broadcast services, especially those served by machine type communication (MTC), has drawn much attention recently. The main concern for the expansion of those broadcast services is the receiver cost and the service coverage. Allowing the transmission of additional coded packets with binary coding has already been a proven technique to extend the service coverage by recovering the lost native packets from the coded packets. In order to lower the receiver cost, we proposed in our previous work a low cost receiver for wireless broadcast systems by reducing the required buffer for packet recovering. Additionally, one equal weight binary codebook design commodious for the low cost receiver was also proposed. In this work, we revisit the binary codebook design problem for low cost receiver by introducing some increasing weight codebooks suitable for the low cost receiver. Simulation results show that the newly designed codebooks can sustain a good portion of coding gain for broadcast system with the low cost receiver.