A parameterizable channel model for Wireless Networks-on-Chip design

Michael, O. A. (2016) A parameterizable channel model for Wireless Networks-on-Chip design. In: 16th Mediterranean Microwave Symposium (MMS2016). IEEE Xplore. 

Abstract
To alleviate the performance degradation due to the slow non-scalable wirelines in conventional Network-on-Chip Wireless Networks-on-Chip (WiNoCs) have emerged as a promising solution. However, on-chip communication poses several constraints on the wireless layer. Hence, there is the need for simulation and design tools that consider the effect of the wireless channel at the nanotechnology level. In this paper, we present a parameterizable channel model for WiNoCs which takes into account practical issues and constraints of the propagation medium. The proposed channel model demonstrates that total path loss of the wireless channel in WiNoCs suffers from not only dielectric propagation loss (DPL) but also molecular absorption attenuation (MAA) which reduces the reliability of the system.

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An improved wireless communication fabric for performance aware network-on-chip architectures.

1. Opoku Agyeman, M., Tong, K. and Mak, T. (2016) An improved wireless communication fabric for performance aware network-on-chip architectures. International Journal of Computing and Digital Systems. 5(2), pp. 161-171. 2210-142X.

Abstract
Existing wireless communication interface has free space signal radiation which drastically reduces the received signal strength and hence reduces the throughput efficiency of Hybrid Wired-Wireless Network-on-Chip (WiNoC). This paper addresses the issue of throughput degradation by replacing the wireless layer of WiNoCs with a novel Complementary Metal Oxide Semiconductor (CMOS) based waveguide communication fabric that is able compete with the reliability of traditional wired NoCs. A combination of a novel transducer and a commercially available thin metal conductor coated with a low cost Taconic Taclamplus dielectric material is presented to generate surface wave signals with high signal integrity. Our experimental results demonstrate that, the proposed communication fabric can achieve a 5dB operational bandwidth of about 60GHz around the center frequency (60GHz). Compared to existing WiNoCs, the proposed communication fabric has a performance improvement of 13.8% and 10.7% in terms of throughput and average packet delay, respectively. Specifically, under realistic traffic patterns, the average packet latency can be reduced by 30% when the mm-Wave is replaced by the proposed communication fabric.

DOI: 10.12785/ijcds/050206

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