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For the limitation of the network resources, to support real-time service in Mobile Ad Hoc Networks is challenging, especially for the delay sensitive voice sessions. Firstly, the delay spike phenomenon is described and analyzed in detail in this paper. Then, to alleviate its impairment on the voice quality, based on the prediction of delay spikes, a new(More)
The codebook based precoding is a promising technology adopted by Long Term Evolution (LTE), which fixes a common codebook comprising a set of vectors and matrices at both the transmitter and the receiver. For the codebook design, it is necessary to achieve high precoding gain, lower feedback overhead and flexibility to support various antenna(More)
In this paper a new technology is introduced for LTEAdvanced to meet the requirement of IMT-Advanced. The proposed scheme is Coordinated multi-point transmission and reception (CoMP). This method not only reduces the inter-cell interference (ICI), but also increases the cell average and cell edge user throughput in the both uplink and downlink.CoMP is(More)
An important requirement for the future ad hoc networks is to provide QoS guarantees for realtime multimedia application. Multipath routing can be used to provide route resilience, smaller end-to-end delay and better load balancing in Ad Hoc networks, while MPLS technology can provide QoS and traffic engineering in wired networks. By merging MPLS technology(More)
Mobile edge computing is a new paradigm of cloud computing which distributes the cloud resources to the edge of network and closer to the user. It enables mobile devices to overcome the scarce resource constraint by allowing them to offload computation task to computing resource of the cloud nearby. In this paper, we propose an consumption considered(More)
This paper introduces two kinds of handover algorithms that adjust the handover (HO) parameters of LTE (Long-Term Evolution) eNodeB (evolved NodeB) to improve the overall network performance and diminish negative effects. The focus is on the impact that two kinds of handover algorithms compare to A3 event based on the optimization of hysteresis and(More)
The accuracy of global positioning system (GPS) based point determination in urban environment is mainly corrupted by multipath and signal diffraction. The measured carrier-to-noise-power-density ratio (C/N0) has proven to be an excellent tool for the estimation of the random errors of the observables. In this paper, a novel weight model which is(More)
To improve the performance of spectrum sensing in cognitive radio (CR) network consisting of primary user (PU), secondary user (SU) and fusion center, a cooperative spectrum sensing scheme based on artificial neural network (ANN) is designed. ANN is introduced at every SU to forecast the probability which represents the effect of local sensing. Fusion(More)
This paper introduces a new method to implement the SUPL Location Platform defined in the SUPL specification. SUPL(Secure User Plane Location) is designed by OMA(Open Mobile Alliance) for the deployment of Location Based Services. SUPL is an open LBS specification, which supports various positioning technologies(eg: A-GPS, cell-Id, EOTD). SLP(SUPL Location(More)