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Reducing energy consumption over mobile networks and devices is an important and challenging issue. On the one hand, power is a limited resource on mobile devices and its usage should be optimized. On the other hand, energy consumption constitutes an important item within operating expenditure (OPEX) for network providers. In the literature, many studies are dedicated to evaluate scheduling mechanisms...
Development of LTE networks are still largely concentrated in urban areas and did not rule out some time in the future, rural areas can also enjoy this high-speed data services. In this paper, the performance analysis of LTE network on rural area is shown. Four scenarios are used and distinguished by frequency (900 and 1800 MHz) and bandwidth (5 and 20 MHz). Based on the results, the most effective...
LTE is an all IP network. The scheduling in its downlink channels is a key problem. Although many algorithms have been designed and analyzed, the QoS for the users in poor channel conditions are not enough to be ensured sometimes. We design a method to enhance the capacity of the system, which is a modifying strategy available for most existing algorithms. Our intuition is to allocate more resources...
Self-Organizing Network (SON) mechanism comprises of three components of self-configuration, self-optimization and self-healing which can contribute to optimize the performance of the next generation broadband network such as the Long Term Evolution (LTE) networks. The aim of this study is to propose a self-organizing handover procedure based on the Self-Organizing Network (SON) concept for LTE network...
Self-Organizing Network (SON) mechanism comprises of three components of self-configuration, self-optimization and self-healing which can contribute to optimize the performance of the next generation broadband network such as the Long Term Evolution (LTE) networks. The aim of this study is to propose a self-organizing handover procedure based on the Self-Organizing Network (SON) concept for LTE network...
:In today scenario, with increasing number of user fair Resource Allocation has become a problem. The purpose of Resource Allocation is to allocate sub-carrier and power to users to meet their service requirements while maintaining fairness among users and maximize resources utilization. In this paper resources are allocated in such a way to maximize the throughput while minimize the power consumption.
Long Term Evolution (LTE) is a breakthrough in broadband technology which aims to support several high level quality and real time multimedia services for the mobile users. This paper proposes a resource block preserver (RBP) scheduling algorithm which optimizes the performance of the downlink transmission system in LTE network. The resource block preserver algorithm has two layers, upper and lower...
In LTE-A or Rel. 10+, Heterogeneous Network deployments are supported to improve Cell capacity, Cell coverage and user link performance. Thus deployment of low power nodes i.e. Pico-cell or Femto -- cell is done in Macro cell. However, such deployments give rise to inter-cell interference problems. In this paper, we consider a Heterogeneous LTE network where Macro-Femto scenario is evaluated with...
The 3rd Generation Partnership Project (3GPP) introduced Long Term Evolution (LTE) in release 8, and afterwards it was updated significantly in later releases (referred to as LTE-Advanced). LTE and LTE-Advanced (LTE-A) aim to achieve higher spectral efficiency, higher data rates, robustness and flexibility. Intelligent channel-aware radio resource scheduling is one of the key features of LTE-A. A...
Long Term Evolution (LTE) is an attractive infrastructure for Smart Grid (SG) networks because it provides high bandwidth and low latency over a large coverage area. Although LTE networks are primary designed for Human-to-Human (H2H) communication, SG networks primarily involve Machine-to-Machine (M2M) communications. One such SG network component is the Smart Meter (SM), which utilizes M2M communications...
Long Term Evolution (LTE) is a promising wireless network which assures a peak data rate of 100Mbps in the downlink and 50 Mbps in the uplink. In this paper, the physical layer characteristics of LTE as prescribed by 3GPP draft is analyzed in terms of Throughput and BER under various channel conditions, modulation schemes and channel band bandwidth. From the results obtained, it is observed that the...
A key mechanism in the LTE traffic processing is the packet scheduler which is in charge of allocating radio resources to User Equipment (UE) based on scheduling schemes involved in the LTE base station. The main contribution of this work is to propose a new scheduling algorithm for Long Term Evolution (LTE) system. The proposed scheduler satisfies the quality of service (QoS) requirements of the...
Communications play an important role during public safety operations. Since the current communication technologies heavily rely on the backbone network, the failure of base stations (BSs) due to natural disasters or malevolent attacks causes communication difficulties for public safety and emergency communications. Recently, the use of unmanned aerial vehicles (UAVs) such as quadcopters and unmanned...
In this paper, we introduce an approach for application-aware resource block scheduling of elastic and inelastic adaptive real-time traffic in fourth generation Long Term Evolution (LTE) systems. The users are assigned to resource blocks. A transmission may use multiple resource blocks scheduled over frequency and time. In our model, we use logarithmic and sigmoidal-like utility functions to represent...
One of the key challenges to enable high data rates in the downlink of LTE-Advanced (LTE-A) is the precoding and receiver design. In this work, we focus primarily on the UE and the base station (BS) processing, particularly on estimating and using the interference resulting from strong neighboring stations. In this paper, we propose a novel receiver design that performs well in the presence of interference...
Long Term Evolution (LTE) is an all IP packet system in which guaranteeing QoS is a real challenge. The LTE aims to provide a maximum data rates of 100Mbps for downlink and 50Mbps for uplink when 20 MHz bandwidth is used. The scheduler takes different considerations into account such as throughput and fairness when deciding the allocation of the scarce radio resources. Therefore the LTE MAC scheduler...
Long Term Evolution (LTE) is an all IP packet system in which guaranteeing QoS is a real challenge. The LTE aims to provide a maximum data rates of 100Mbps for downlink and 50Mbps for uplink when 20 MHz bandwidth is used. The scheduler takes different considerations into account such as throughput and fairness when deciding the allocation of the scarce radio resources. Therefore the LTE MAC scheduler...
This paper proposes a mechanism for uplink packet scheduler in LTE network in the context of Machine-to-Machine (M2M) communication. The proposed approach uses the current and past information of the system to satisfy the Quality of Service (QoS) requirements, to ensure fairness in resource allocation and to control the congestion caused by M2M devices. We carried out some network simulations by using...
The increasing demand for data traffic through high capability mobile devices and the trade-off between revenues and costs for upgrading the communication infrastructures strongly push the network operators to make the best use of the available network resources, which renews and reinforces the interest on resource management strategies. In this respect, a key challenge consists in finding a proper...
Recently, there has been a tremendous increase in mobile data usage with widespread proliferation of smartphone like devices and increasing popularity of video streaming services such as YouTube. This is already causing overloading of 3G cellular access networks. It is estimated that even the 4G LTE (Long Term Evolution) technology which has significantly higher spectral efficiency than 3G will also...
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