KAUST DepartmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
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AbstractThis paper describes the design and VLSI architecture for a 4x4 breadth first K-Best MIMO decoder using a 64 QAM scheme. A novel sort free approach to path extension, as well as quantized metrics result in a high throughput VLSI architecture with lower power and area consumption compared to state of the art published systems. Functionality is confirmed via an FPGA implementation on a Xilinx Virtex II Pro FPGA. Comparison of simulation and measurements are given and FPGA utilization figures are provided. Finally, VLSI architectural tradeoffs are explored for a synthesized ASIC implementation in a 65nm CMOS technology.
CitationMondal S, Eltawil A, Shen C-A, Salama KN (2010) Design and Implementation of a Sort-Free K-Best Sphere Decoder. IEEE Transactions on Very Large Scale Integration (VLSI) Systems 18: 1497-1501. doi:10.1109/TVLSI.2009.2025168.