Showing papers by "Ahmed Soliman published in 2012"

Designing a WISHBONE Protocol Network Adapter for an Asynchronous Network-on-Chip

Abstract: The Scaling of microchip technologies, from micron to submicron and now to deep sub-micron (DSM) range, has enabled large scale systems-on-chip (SoC). In future deep submicron (DSM) designs, the interconnect effect will definitely dominate performance. Network-on-Chip (NoC) has become a promising solution to bus-based communication infrastructure limitations. NoC designs usually targets Application Specific Integrated Circuits (ASICs), however, the fabrication process costs a lot. Implementing a NoC on an FPGA does not only reduce the cost but also decreases programming and verification cycles. In this paper, an Asynchronous NoC has been implemented on a SPARTAN-3E® device. The NoC supports basic transactions of both widely used on-chip interconnection standards, the Open Core Protocol (OCP) and the WISHBONE Protocol. Although, FPGA devices are synchronous in nature, it has been shown that they can be used to prototype a Global Asynchronous Local Synchronous (GALS) systems, comprising an Asynchronous NoC connecting IP cores operating in different clock domains.

Quad band CPW-planar IFA with independent frequency control for wireless applications

Abstract: Quad-band coplanar waveguide-fed planar inverted-F antenna (PIFA) is presented in this paper. The resonant frequencies are independent and could be controlled independently for different wireless applications as ((GSM1800, GSM1900, UMTS (1920-2170MHz), LTE band-1(1920–2170MHz), LTE band-2(1850–1990MHz), LTE band-3 (1710–1880MHz), WLAN (5.2 GHz), and WI-MAX (3.5 GHz). The radiation patterns and gain are also analyzed.