A fully operational 4G long-term evolution (LTE) base station is tested in a reverberation chamber to analyze its performance in the presence of a multipath environment, typical of wireless and vehicular communications. Transmission quality parameters are measured ranging from the empty chamber situation (very rich multipath channel) to a very high loading condition to mitigate…
Tags: SUMO OMNeT++
Passing the torch: Role alternation for fair energy usage in D2D group communication
By using device-to-device (D2D) communication, opportunistic networks promise to fill the gaps of thenetworking infrastructure in remote areas, to enable communication in emergency situations, and to inspire new applications. Yet, to become feasible in practice and accepted by users, it is crucial that the energy costs of D2D connections are small and shared fairly. Fairness, in particular, is a…
Enabling Device to Device Broadcast for LTE Cellular Networks
In recent years, the public safety community has been aligning behind LTE (Long Term Evolution) technology as the basis for next generation public safety networks. Correspondingly, the 3GPP (3rd Generation Partnership Project) standards body has started multiple technical work initiatives on LTEenhancements to better support public safety use cases and requirements. Of particular importance to the public safety…
An overview of ETSI TC SmartBAN MAC protocol
In this paper we introduce medium access control (MAC) protocol defined by ETSI TC (technical committee) SmartBAN (smart body area network). The key features of the protocol are a two-channel concept with different channels for data and control traffic, and a unique Multi-use Channel Access as one alternative channel access mode. The two-channel concept provides fast channel acquisition…
NOC based Banyan OpenFlow switch for Software Defined Networks
Nowadays, network management has become difficult because of tremendous increase on IP traffic demands. At this point, a flexible and dynamic control mechanism is needed that diminishes the complexity of physical topology. Software Defined Networking (SDN), is one of the proposed next generation technologies to overcome this problem. SDN paradigm provides a simple management strategy for dummy switches in physical topology…
Testbed Innovations for Experimenting with Wired and Wireless Software Defined Networks
Widely available and remotely accessible test beds have been used for a direct comparison of innovative protocols and ideas with existing technologies. Therefore, multiple test beds have been established, aiming at providing experimentation services with both wireless and wired networks. In this context, several frameworks have been developed that enable easy experimentation with the heterogeneous…
Video streaming over software defined networks with server load balancing
Software Defined Networking is a promising Internet architecture to deliver multimedia with end-to-end quality of service (QoS) since it enables optimal dynamic management of network resources and on-demand QoS provisioning by a network operator. We propose a framework for server load-balancing over a single-operator OpenFlow network to improve the quality of service levels of video streaming services. We design a new OpenFlow controller application…
An energy efficient mutual authentication scheme for secure data exchange in health-care applications using wireless body sensor network
The advancement of semiconductor and ubiquitous technology resulted in a smart sensor networkingsystem, which is an application of wireless sensor networks to health care applications (WMSN).Wireless Medical Sensor Network (WMSN) is a real-time continuous patient monitoring system, which provides a cost-optimal wireless sensor networking platform to track patient’s physiological data through the sensors attached to patient body. Limited computational power, storage, communication and energy capacity of WMSN demands…
Distributed Blind Calibration in Lossy Sensor Networks via Output Synchronization
A novel distributed algorithm for blind macrocalibration of large sensor networks is introduced. The algorithm is in the form of a system of gradient-type recursions for estimating parameters of local sensor calibration functions. The method does not require any fusion center. The convergence analysis is based on diagonal dominance of the dynamical systems with block…
Energy Efficient Self-Sustaining Wireless Neighborhood Area Network Design for Smart Grid
Neighborhood area network (NAN) is one of the most important sections in smart grid communications. It connects residential customers as part of a two-way communication infrastructure responsible for transmitting power grid sensing and measuring status, as well as the control messages. In this paper, we propose a cost-effective, flexible, and sustainable NAN design using wireless…