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In this paper, we present a method for resource allocation for small cells that integrate licensed and unlicensed RF operations motivated by the widespread WiFi hotspots and the common inclusion of WiFi interface in most cellular terminals. Small cells have proven popular for cell coverage enhancement and traffic offloading from macrocells. We formulate an optimization problem that jointly allocates...
This paper deals with the losses of Switched Reluctance Machine Drives (SRDs) for electric vehicle propulsion, consisting of the losses in the Switched Reluctance Machine (SRM) and the converter, across some operating regions based on different control strategies, namely Firing Angle (FA) control and Torque Sharing Function (TSF) control. The SRM model which takes into account copper losses and converter...
WiFi interfaces have been recently incorporated in most cellular user equipments (UEs). In current practice, the UE selects either the licensed band for cellular technologies or the unlicensed WiFi band depending on the signal quality of both bands. At the same time, small (pico or femto) cells have also become popular means to offload traffic from traditional macro-cell networks and to improve cell...
MAC protocols are very essential to build real networks. So far, although several protocols are proposed for MAC layer, in real world systems, we always deploy heterogeneous modems. In this paper, we propose a novel wireless ad hoc MAC protocol for the master-slave heterogeneous modems, based on this kind of modems' work mode and topology structure. The protocol is of great robustness, flexibility...
As the demand for mobile broadband services are growing, cellular networks are heading towards their fourth generation (4G). Long Term Evolution - Advanced (LTE-A) is emerging as a major candidate for 4G cellular networks. MIMO technology combined with OFDMA is a major technological change in 4G compared to their 3G counterparts. However various MIMO configurations and modulation/coding schemes(MCS)...
This paper presents an intelligent testing system for underwater transducer array by using virtual instrument technology. The testing system is used to test the identities between transducer and transducer of the underwater transducer array. The hardware and software architecture of the testing system are introduced. The system software is developed on the LabVIEW. LabVIEW, a graphical programming...
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