Reconfiguration-aware spectrum sharing for FPGA based software defined radio

This paper focuses on reconfigurable systems for software defined radio applications in which the underlying hardware is dynamically reconfigured for packet processing of multiple protocols. However, due to non-negligible reconfiguration delay overhead, the physical layer may not be able to respond to all the packets scheduled by MAC layer. In this paper, we present a reconfiguration-aware spectrum sharing and spectrum access scheduling at MAC layer. We considered four protocols similar to WiFi, WiMax, GPRS, and WCDMA on a FPGA-based system. Our results show that the optimal solution outperforms the adopted existing heuristic for time slot scheduling by 13.29%.