Benefit and cost of cross sliding window scheduling for low latency 5G Turbo decoding
- Resource Type
- Conference
- Authors
- Liu, Dake; Zuo, Chaoyuan; Wu, Zhenzhi
- Source
- 2015 IEEE/CIC International Conference on Communications in China (ICCC) Communications in China (ICCC), 2015 IEEE/CIC International Conference on. :1-4 Nov, 2015
- Subject
- Communication, Networking and Broadcast Technologies
Signal Processing and Analysis
Decoding
Coplanar waveguides
Bit error rate
Hardware
5G mobile communication
Wireless communication
Measurement
parallel processing
Turbo decoder
cross sliding window
5G wireless communication
- Language
The end-to-end latency in 5th generation (5G) wireless communication is required to be less than a millisecond for delay sensitive scenarios, which becomes a serious constraint for the designing of 5G Turbo decoder. Traditional Turbo decoders primarily concern on throughput and resource consumption, which leads the latency unoptimized. This work targets on minimizing the decoding latency with the hardware cost constrains and performance constrains. A Cross Sliding Window (CSW) scheduling method is introduced which achieves both less memory capacity and lower latency. The Bit Error Rate (BER) is investigated and shows that the performance degradation of CSW method is acceptable. The hardware cost comparisons among the cross parallel window method, traditional sliding window method and the proposed CSW method suggest the hardware cost benefits and latency efficiency of CSW method.