Power and Signal-to-Noise Ratio Optimization in Mesh-Based Hybrid Optical Network-on-Chip Using Semiconductor Optical Amplifiers

Applied Sciences

卷:9

TaeHee Han¹  MinSu Kim²  JunYeong Jang²  Chang-Lin Li³ 

[1] Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Gyeonggi-Do, Korea;

[2] Department of Semiconductor and Display Engineering, Sungkyunkwan University, Suwon 16419, Gyeonggi-Do, Korea;

[3] Eyenix Co., Suwon 16690, Gyeonggi-Do, Korea;

关键词: hybrid optical network-on-chip (HONoC);    insertion loss;    crosstalk noise;    signal-to-noise ratio (SNR);    semiconductor optical amplifier (SOA);   

DOI  :  10.3390/app9061251

来源: DOAJ

【 摘 要 】

To address the performance bottleneck in metal-based interconnects, hybrid optical network-on-chip (HONoC) has emerged as a new alternative. However, as the size of the HONoC grows, insertion loss and crosstalk noise increase, leading to excessive laser source output power and performance degradation. Therefore, we propose a low-power scalable HONoC architecture by incorporating semiconductor optical amplifiers (SOAs). An SOA placement algorithm is developed considering insertion loss and crosstalk noise. Furthermore, we establish a worst-case crosstalk noise model of SOA-enabled HONoC and induce optimized SOA gains with respect to power consumption and performance, respectively. Extensive simulations for worst-case signal-to-noise ratio (SNR) and power consumption are conducted under various traffic patterns and different network sizes. Simulation results show that the proposed SOA-enabled HONoC architecture and the associated algorithm help sustain the performance as network size increases without additional laser source power.

【 授权许可】

Unknown