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The paper investigates the principles of functioning of wireless communication networks of the next generation with M2M traffic. In the early stages, the new technology will be implemented on the basis of 4G (LTE) infrastructure, complemented by innovative radio access developments and new resource management techniques for the IoT services implementation. We present the analysis of the requirements...
In this paper we analyze the current state of 3G mobile networks in Ukraine and study the prospects and ways of introducing IoT services based on 4G/5G technologies. We improve architecture of LTE mobile network to provide IoT services through the allocation of narrowband spectrum and the transfer of functions from the eNodeB base station to IoT controller. We propose narrowband spectrum allocation...
LTE-Unlicensed (LTE-U), has shown a great potential to boost the capacity of cellular networks. However, in most countries, implementation of LTE-U requires additional listen before talk (LBT) techniques to avoid interference between LTE-U and legacy Wi-Fi networks. Similar to conventional 802.11 protocol, LTE-U/LBT protocols perform quite well for the small number of users, whereas for the high number...
Modern 5G network are becoming denser and more agile in terms of deployment options. The average throughput and overall capacity of 5G networks are continuously growing by using variety of new solutions. However, backhaul technologies for mobile network are either low capable or inconvenient for dense deployment. In this paper, we propose a new design for converged 5G backhaul based on improved passive...
This paper considers the continuous integration (CI) process of user-related services based on free modern software. The CI pipeline consist of source control, quality control, testing, building and deployment of service every time new commit comes to source control server. CI is very important part of service lifecycle due to demands of security and quality assurance at the stage of service deployment...
In this paper we propose a mathematical model of the functioning of network device with virtual routers. This model allows to decrease the mutual influence of the parametric effects of different types of traffic in the network node, as well as to estimate the quality of service by decomposition of a structure of network node and mathematical modeling based on queueing theory. To verify the proposed...
In this paper, the mechanism of the Link Bundling and Generalized Label GMPLS were evaluated, based on the parameter of the energy efficiency. Mathematical models for determination of the energy efficiency parameter for different modes of transfer and switching were derived. The influence of the load balancing on the power consumption of optical transport network was represented. Besides, the influence...
In this paper we propose architecture of software-defined heterogenous network based on integration of such modern technologies as NFV, SDR and SDN. We have discovered that mobile network that is built according to SDN, SDR and NFV principles will allow to create new mobile networks. Such networks will constitute a base for transition between standards (GSM-UMTS-LTE-LTE Advanced), providing high quality...
In this paper, the general principle of OLS technology is described in details. Two types of transmission were described: payload and labels transmission. We have assessed the problem of effective size of data unit while taking into account the network parameters such as network delay, efficiency of channels utilization and power consumption. The main approaches to improve the efficiency of channels...
This paper surveys a new and comprehensive concept of services assurance in distributed heterogeneous service-oriented systems. A vertical decomposition of the service delivery is proposed for these systems. The mathematical model of request transmission process is developed.
Tremendous increasing of demands in mobile networks introduces a set of new challenges for future 5G networks. Although, network densification has a huge potential to increase network capacity, backhaul channels are still a bottleneck in this chain. In this paper, we have proposed a new approach for optical backhaul based on OWTDMA network. The novelty of proposed approach is in time-wavelength resource...
This paper depicts the modern state and directions of the future development in the area of information and telecommunication systems. We analyze the most interesting and promised technologies of the last decade to define the predictable directions of further ICT shifting.
It is expected that extensive deployment of small cells (SCs) in LTE networks will take place in the near future, especially in dense urban zones. In this paper, we propose a new model of 3-tier heterogeneous radio access network (RAN) based on adaptive structure synthesis method with a combination of deterministic and stochastic geometry. Results show the improvement of peak data rates and energy...
Rapid growing of mobile communications market, driven by continuous development of new technologies, results in significant increasing of traffic demands. New powerful user's equipment became capable of all functions performed mainly by desktop computers. Therefore, mobile Internet access requires data rates comparable with fixed access networks. 5G concept has emerged to meet these growing demands...
In this paper the concept of network monitoring implemented in SDN architectures are explored. This new programmable network architecture ensures a significant advantage over other because it is introduce new functionalities and easier to tune up to provide guaranteed quality of services from end-to-end for each priority flow. Monitoring the network is the first step towards a SDN forwarding protocol...
The algorithm of optical transport network modeling based on ring topology was developed based on percolation theory. The network congestion and overloading problem was analyzed. Simulations of different scenarios of optical transport have been conducted. Results show that both TAW and JET protocols for OBS network outperforms traditional optical networks with optoelectronic conversion. The effective...
This paper is devoted to increasing the efficiency of utilization of wavelengths in optical fibers in modern DWDM systems. Today's optical network architectures are very complex and consist of several layers. While the basis of all architectures is an optical DWDM layer, the implementation of the upper layer technologies can significantly vary what makes integration of the layers very challenging...
This paper presents a new paradigm of optical data transmission based on resource grid forming. Unlike ordinary data transmission over Gigabit Ethernet network, we suggested optical wavelength-time division multiple access networks. The main difference of this method, is division the data between wavelength-time symbols. Thus, each user allocated on necessary set of wavelengths during fixed time interval...
In this paper an efficient system of local and global dynamic monitoring of environmental parameters of spatial temporal instability sources is created. The proposed system is implemented on the basis of a single center, which serves as the reception and processing of alarm messages, systematization of results, retrospective data analysis and prediction of the dynamics of the emergency situation and...
Backhaul is one of the most important part of mobile network that cause a lot of limitations in terms of performance. In this paper, we propose new backhauling subsystem basic on MIMO technology that provides intelligent resource reallocation according to current load conditions. We provide a deep study of the network performance on the physical layer. Our results show that our backhaul subsystem...
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