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In order to achieve ubiquitous coverage and service continuity in future 5G network, satellite‐based access is the best solution to complement the terrestrial LTE‐A. In light of this, we introduce a channel‐aware hybrid scheduling technique on the basis of satellite‐LTE spectrum sharing. According to the user‐experienced channel, base stations (eNodeB) and the satellite will work cooperatively. The...
Massively Multiplayer Online Games (MMOG) keep attracting hundreds of thousands of players from all over the world. Ensuring a scalable and latency-sensitive MMOG service is a challenge task since it is subject of high workload variability. Traditionally, MMOG providers used to over provision resources in order to cope with worst workload scenario. Nowadays, MMOG infrastructures have switched to Cloud...
Massively Multiplayer Online Games (MMOG) keep attracting hundreds of thousands of players from all over the world. Ensuring a scalable and latency-sensitive MMOG service is a challenge task since it is subject of high workload variability. Traditionally, MMOG providers used to over provision resources in order to cope with worst workload scenario. Nowadays, MMOG infrastructures have switched to Cloud...
Machine-to-Machine (M2M) communications are expected to be one of the major drivers for the future 5G network. The significant increase in the number of these devices could, however, lead to a huge amount of traffic at the access network, which may cause heavy congestion and service degradation, especially for the most critical applications. Indeed, when the M2M traffic's arrivals become correlated...
Ensuring an acceptable Quality of Experience (QoE) for all users is a fundamental requirement to the economical development of the Massively Multiplayers Online Gaming (MMOG) companies. However, the high load variability of such MMOG services makes hard to satisfy a good QoE. This paper aims to contribute to this effort, by proposing a proactive dynamic provisioning approach which predicts future...
Machine-to-Machine (M2M) communications are expected to be one of the major drivers of future cellular networks, due to a plethora of services provided to operators and consumers. This leads to an explosively growth of simultaneous M2M arrivals, and then a bursty random access attempts that causes a severe random access congestion in addition to terminals' synchronization issues. In this paper, we...
The Internet of Things (IoT) and particularly Machine-to-Machine (M2M) communications are considered as major enablers for future smart cities' initiatives. While offering a wide range of applications and services, supporting such devices constitutes, however, one of the most important challenges to be faced by Network Operators (NO). Indeed, the expected huge number of devices requesting to connect...
In a previous proposal, we propose a scheduler that enhances the usage of the radio blocks (RBs). This paper consists of an extension of our previous scheme in order to find a good trade-off between both the delay and the PLR. The proposition consists of a scheduler based on the packet prediction mechanism (PPM). This scheduler provides the exact time at which a flow has to be served. Further, several...
Machine Type Communications (MTC) come up with substantial revenue growth for Mobile Network Operators (MNO), but they represent at the same time the most important challenge they are facing. In fact, a massive number of MTC devices performs simultaneously the Random Access (RA), which causes severe congestion and reduces the RA success probability. To control the Radio Access Network (RAN) overload...
One of the promising technologies which is being regarded in the future 5G standard long Term Evolution (LTE) Release 13 is Machine-to-Machine or M2M communications. It represents a key component of Internet of Things (IoT) and smart spaces. One of the most difficult challenges to support M2M communications is their huge number compared to available radio resources. Hence, to deal with random access...
Massively Multiplayer Online Games (MMOG) keeps attracting a large number of players. To sustain the increasing number of gamers, MMOG infrastructure have switched nowadays to Cloud computing paradigm, which can offer to the game service providers as well as to the end users a scalable and an affordable access to the infrastructure required to support MMOG. While many technical challenges related...
A Long Term Evolution Advanced (LTE-A) downlink scheduler must guarantee the Quality of Service (QoS) provisioning. Existing schedulers consider the Channel Quality Indicator (CQI) reports to determine their priority rules. Nevertheless, these reports may not be sufficiently accurate. In addition, existing scheduling policies fail to provide a good tradeoff among low Packet Loss Ratio (PLR) and bounded...
The hybrid composition of satellite and terrestrial 4G LTE-A networks serves as a key enabler for a potential ubiquitous coverage and flexibility in bandwidth configuration. Thus, achieving a fruitful synergy in support of seamless services anywhere/anytime is an important contribution of that kind of architecture. However, many challenges and issues for supporting heterogeneous networks should be...
In this paper, we study the LTE-A (Long Term Evolution Advanced) downlink scheduling. Delay aware schedulers are among the popular schedulers presented in the literature. These schedulers are based on fix and exact delay budget. Nevertheless, wireless channels are quickly modified which make fix delays not effective. Several contributions, based on fuzzy logic method, are presented in the literature...
A good scheduler must respect requirements fixed by the 3GPP. Spectral efficiency may be assured by assigning each RB to the user that is predictable to exploit it at the best. The spectral efficiency guarantee may maximize the cell capacity. Similarly, assuring others requirements, which are fairness, computational complexity, cell-edge coverage, QoS provisioning, and energy savings can be achieved...
In this paper we propose an algorithm based on adaptive multiple Access Class Barring MACB factors, according to M2M traffic category in order to overcome the Random Access (RA) overload in LTE-A Networks. Simulations were done for testing the performance of our MACB scheme and show that using multiples ACB factors, and dynamically adapt them to the congestion level in addition to traffic type category...
Web Services publication and discovery are commonly implemented over a centralized client-server approach. Therefore, at high requests' rate server nodes are bottlenecked and the system scale is unable to follow the increasing load. To address this issue, we consider the Cloud computing concept where huge amount of resources such as, storage, processing and bandwidth capacities are available on demand...
LTE (Long Term Evolution) is a broadband wireless communication specified by the 3GPP (Third Generation Partnership Project) on the way towards fourth-generation mobile. User traffic can be classified into two main classes which are RT (Real Time) and NRT traffic. To respond to RT's QoS requirements, resource allocation steps must be as optimal as possible. In this paper, we propose a new concept...
LTE (Long Term Evolution) is a broadband wireless communication specified by the 3GPP (Third Generation Partnership Project) on the way towards fourth-generation mobile.
In this paper we propose a hybrid radio access network architecture that aims to connect remote areas to broadband networks. The proposed architecture consists in a WiMAX network for final users which hence can be connected to the internet backbone. In the other hand the WiMAX base stations are connected via the satellite to the wired network to circumvent mobility and long distance issues. To allow...
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