Title: Applying Partial Reconfiguration Technique on ARM-FPGA Systems in Context of Vertical Handover in Wireless Heterogeneous Networks

Issue Number: Vol. 8, No. 1
Year of Publication: March - 2018
Page Numbers: 70-74
Authors: Mohamad Al-Fadl Rihani, Mohamad Mroue, Jean-Christophe Prevotet, Fabienne Nouvel, and Yasser Mohanna
Journal Name: International Journal of Digital Information and Wireless Communications (IJDIWC)
- Hong Kong
DOI:  http://dx.doi.org/10.17781/P002408


Nowadays wireless communication networks consist of multiple radio access technologies (LTE, WIFI, WIMAX ... ). Thus, end-nodes may use different radio technologies according to their availability and location. End-nodes should be intelligent and autonomous enough in order to select automatically the best available wireless technology and switch to it seamlessly. The System on Chip (SoC) technique integrates processors and FPGA logic fabrics on the same chip with fast interconnection between them. This feature provides the ability to design Software/Hardware systems with optimized performance. The partial reconfiguration (PR) feature of FPGAs has added more flexibility to these high performance devices. In this work, we propose an ARM-FPGA platform to perform vertical handover between multiple wireless systems using PR technique. The proposed system consists of software and hardware parts. The software part runs on an ARM processor. It has the task to read specific parameters, decide, and control the partial reconfiguration process that applies to the reconfigurable blocks on the FPGA. Also, the software part has the ability to update reconfigurable modules by transferring partial bit-streams on the network. Regarding the hardware part, two reconfigurable architectures for a unified chain are proposed and compared. The evaluation results for both reconfigurable architectures have been collected from a unified WIFI-WIMAX chain. The system is implemented on a ZedBoard featuring a Zynq SoC device.