An anti-overflow control method of state metrics for high throughput Turbo decoder
Since the dynamic range of state metrics is limited due to the finitude of their quantization, it is needed to take an anti-overflow operation in the implementation of Turbo decoder. In traditional methods, plenty of calculations should be done for the anti-overflow protection in a single cycle, which greatly restricts the actual running clock frequency, thus to bring a strong impact on the final decoding throughput In this paper, a novel anti-overflow method is proposed, to compare with the conventional methods, the proposed method can significantly increase the running clock frequency and achieve higher decoding throughput without losing any decoding performance.
Anfu Guan Limin Xiao Xiujun Zhang Shijie Cai Xiang Chen Shidong Zhou Jing Wang
State Key Laboratory on Microwave and Digital Communications Tsinghua National Laboratory for Information Science and Technology Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
国际会议
2012 4th International High Speed Intelligent Communication Forum(2012年国际高速智能通信论坛 HSIC2012)
南京
英文
291-294
2012-05-17（万方平台首次上网日期，不代表论文的发表时间）