LTE-Advanced employs Orthogonal Frequency-Division Multiplexing (OFDM), Carrier Aggregation (CA), Multi Input Multi Output (MIMO), Co-ordinated Multi-Point Transmission (CoMP) and Relay Station state of the art techniques to significantly enhance transmission performance and extend BS service coverage. On the other hand, Femtocell, specified in 3GPP Rel-8, has the advantages of low power consumption, zero-touch PnP, low […]
Read moreThis letter proposes a solution to the multicast subgroup formation problem that aims to maximize the aggregate data rate in Long Term Evolution (LTE) and beyond systems. We analytically demonstrate that, by reducing the solution search space and releasing some constraints, the problem can be solved in a closed form, and a very small number […]
Read moreThree types of flexible textile antennas for 2.45 GHz body area network (BAN) are compared in this letter. Two types of conducting materials are used to form radiation patch and ground plane, they are called copper foil tape (CFT, 0.05 mm thickness) and Shieldex (SH, 0.13 mm thickness, 0.009 Ohm surface resistivity). The substrate is […]
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New Approach to the Stability of Chemical Reaction Networks: Piecewise Linear in Rates Lyapunov Functions
Piecewise-Linear in Rates (PWLR) Lyapunov functions are introduced for a class of Chemical Reaction Networks (CRNs). In addition to their simple structure, these functions are robust with respect to arbitrary monotone reaction rates, of which Mass-Action is a special case. The existence of such functions ensures the convergence of trajectories towards equilibria, and can be […]
Read moreFuture wireless networks will face the dual challenge of supporting large traffic volumes while providing reliable service for delay-sensitive traffic. To meet the challenge, relay network has been introduced as a new network architecture for the fourth generation (4G) LTE-Advanced (LTE-A) networks. In this paper, we investigate resource allocation including subcarrier and power allocation for […]
Read moreThis paper presents a novel change detection approach for synthetic aperture radar images based on deep learning. The approach accomplishes the detection of the changed and unchanged areas by designing a deep neural network. The main guideline is to produce a change detection map directly from two images with the trained deep neural network. The […]
Read moreThis paper describes an 802.15.6 compliant 2360-2484 MHz multiband transmitter that digitally multiplexes the appropriate phases from an 800 MHz poly-phase filter output to generate π/4 DQPSK signals at 2.4 GHz using injection locking. Modulation at one-third the RF frequency reduces the transmitter power consumption and enables channel selection using an integer-N PLL running at […]
Read moreToday, off-line network planning tools are used to optimize transport networks from scratch. A set of pre-planned wavelength services is taken into account for routing optimization. Performing such optimization in an operational transport network may lead to the rerouting of a large amount of wavelengths per link followed by massive adjustments of optical power levels. […]
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Controlling Race Conditions in OpenFlow to Accelerate Application Verification and Packet Forwarding
OpenFlow is a Software Defined Networking (SDN) protocol that is being deployed in many network systems. SDN application verification takes an important role in guaranteeing the correctness of the application. Through our investigation, we discover that application verification can be very inefficient under the OpenFlow protocol since there are many race conditions between the data […]
Read moreThe present note investigates the stabilization, controllability and optimal control problem of Boolean networks with impulsive effects and state constraints. By using the semi-tensor product method, the algebraic form of the Boolean networks with impulsive effects and state constraints is derived. The stabilization and controllability issues of the systems are investigated and some necessary and […]
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