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Vol. 155, Issue 8, August 2013, pp. 86-97




Modeling and Simulation of Intra-Chip Wireless Propagation Channels for Hybrid WiNoC
1, 2 Jianhua Li, 1 Ning Wu, 2 Yongliang Hu

1 College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, 210016, China

2 School of Mathematics & Information Engineering, Taizhou University, 317000 , China

1 Tel.:+86 15868692009, fax: 057685137063
E-mail: ljh2007@tzc.edu.cn


Received: 16 May 2013   /Accepted: 12 August 2013   /Published: 20 August 2013

Digital Sensors and Sensor Sysstems


Abstract: The performance of traditional NoC architecture is limited in terms of throughput, delay and power consumption due to multi-hop wired links. The Wireless Network-on-Chip (WiNoC) has demonstrated their advantages as an emerging interconnect and communication architecture for the new-generation multi-core systems. In this work, we systematically analyze the propagation path of hybrid WiNoC under two on-chip antennas. Based on the deduction of reflection coefficient using 3-D Descartes coordinate system and the ray tracing, we model the intra-chip wireless propagation channel for hybrid WiNoC ensure the reliable communication, we evaluate the Bit-Error-Rate (BER) performance, delay spread and coherence bandwidth. Especially, the simulation based on the model shows that the Signal-Noise-Ratio budget at the end of receiver must be greater than 15 dB to ensure the BER performance for the on-chip wireless communication. It also demonstrates that the path loss for optical on-chip antenna could be improved about 6dB by elevating the height of antenna pairs. The channel coding scheme used for improving the system performance has been analyzed in detail. Besides, we propose an adaptive power control mechanism to maintain high performance by making a balance between BER, operating frequency and transmitted power.


Keywords: Wireless network-on-chip, Multi-path propagation, On-chip antenna, Path loss, Transmission coefficient.


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