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A simple structure circularly polarized (CP) UHF (ultrahigh frequency) RFID (radio frequency identification) reader antenna that operates within the universal RFID bands (840–960 MHz) is investigated. Here, the technique of loading a corner truncated square patch antenna into an L-shaped ground plane is initially studied to achieve good impedance matching with broad CP bandwidth. To further enhance...
A simple circularly polarized (CP) equilateral triangular patch antenna for UHF (902–928 MHz) radio identification (RFID) reader applications is proposed. In this design, good CP radiation is achieved by loading a near semi-circular notch is into the patch. Furthermore, the L-shaped probe-feed method is used for achieving good impedance matching that results in broad impedance and CP bandwidth. The...
Stencils represent an important class of computations that are used in many scientific disciplines. Increasingly, many of the stencil computations in scientific applications are being offloaded to GPUs to improve running times. Since a large part of the simulation time is spent inside the stencil kernels, optimizing the kernel is therefore important in the context of achieving greater computation...
Recently, quality-of-service routing in dynamic, wireless multi-hop ad hoc networks becomes a hot research topic, and various QoS protocols are proposed. However, popular QoS routing protocols rarely provide multiple routes. Once links break due to node mobility, establishment of new routes leads to large control overhead and extra end-to-end delay. We design a quality-of-service routing protocol,...
With the popularization of mobile wireless networks in recent year, we can expect that the future mobile communication environments will be constructed from networks of different coverages and characteristics. The integration of WiMAX and femtocell technologies seems to be a feasible option for better and cheaper wireless coverage extension. It is well-known that WiMAX femtocells are currently under...
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