【摘要】 设计一种基于多核平台的长期演进下行链路信道估计器。对任务进行划分,分解为多个子任务,根据子任务之间的相对通信量,将子任务映射至13个处理器核上,综合运用共享内存及NoC消息传递2种方式进行核间通信,实现多核协同工作,并使用扩展的寄存器堆文件、SIMD数据通路特性、平衡单核计算负载量等方式优化设计。性能分析结果表明,该信道估计器可达到678 Mb/s的吞吐率。更多还原

【Abstract】 This paper presents a channel estimator based on multi-core platform for Long Term Evolution(LTE) downlink.This design partitions task into various sub tasks,and then maps subtasks onto 13 different cores by the relative inter-core communication traffic.The integration usage of shared memory and NoC message transfer are 2 ways for inter-core communication,as to realize multi-core collaborative work.By using the extended register file,SIMD data path characteristics and balanced single core computation load.Performance analysis result shows that this channel estimator can achieve a throughput of 678 Mb/s.更多还原