Fuzzy Logic-Based Handover Requirement Analysis and Access Network Selection for Device-to-Device Communication
01 Jan 2021-Journal of Circuits, Systems, and Computers (World Scientific Publishing Company)-Vol. 30, Iss: 01, pp 2150009
TL;DR: In order to address the exponential growth of data traffic, the concept of device-to-device (D2D) communication has been introduced in 5G.
Abstract: In order to address the exponential growth of data traffic, the concept of device-to-device (D2D) communication has been introduced in fifth generation (5G). The seamless handover to the finest ava...
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TL;DR: This paper analytically derive results on achievable ranges for the most robust modulation and coding schemes (MCSs), both on downlink (DL) and uplink (UL), and examines data rate enhancements, brought by coding and using of short packets, for both DL and UL.
Abstract: A great number of Internet of Things (IoT) and machine-to-machine (M2M) based applications require energy efficient, long range and low data rate wireless communication links. In order to offer a competitive solution in these areas, IEEE 802.11 standardization group has defined the "ah" amendment, the first sub-1GHz WLAN standard, with flexible channel bandwidths, starting from 1MHz, up to 16MHz, and many other physical and link layer improvements, enabling long-range and energy efficient communications. However, for some regions, like Europe, the maximum transmitted power in dedicated frequency band is limited to only 10mW, thus disabling the achievement of ranges which would be close to targeted of up to 1km. In this paper we examine possibilities for range extension through implementation of half-duplex decode-and forward (DF) relay station (RS) in communication between an access point (AP) and an end-station (ST). Assuming a Rician fading channel between AP and RS, and a Rayleigh fading channel on the RS-ST link, we analytically derive results on achievable ranges for the most robust modulation and coding schemes (MCSs). Analyses are performed for two different standard adopted deployment scenarios on the RS-ST link. Moreover, we have analyzed whether the considered most robust MCSs, known for supporting the longest range, but the lowest data rates, can meet the defined requirement of at least 100kb/s for the greatest attainable AP-RS-ST distances. We examine data rate enhancements, brought by coding and using of short packets, for both downlink (DL) and uplink (UL). Finally, we present bit error rate (BER) results, obtained through simulations of a dual-hop DF IEEE 802.11ah relay system for the considered MCs. All presented results confirm that IEEE 802.11ah systems, through deployment of relay stations, become an interesting solution for M2M and IoT based applications.
19 citations
TL;DR: In this paper, a two-phase fuzzy logic based handoff scheme is proposed, where the fuzzy-based handoff necessity estimation (FHNE) is carried out in the first phase and fuzzy based technique for order of preference by similarity to ideal solution (FTOPSIS) is executed in the second phase for access network selection.
Abstract: Vehicular ad hoc network (VANET) is a key element of an intelligent transportation system (ITS), where connected vehicles communicate with the infrastructure wirelessly. The continuous connectivity influences message dissemination, which affects road safety and traffic effectiveness. The integration of VANET with cellular networks is expected to offer benefits like ultra-low latency, extended communication range and high data rates. The high mobility of vehicles and smaller coverage cells demand frequent handoffs to guarantee continuous connectivity with improved quality of service (QoS). Hence, developing a fast, intelligent and reliable handoff scheme is a major challenge. In this work, a two-phase fuzzy logic based handoff scheme is proposed, where the fuzzy based handoff necessity estimation (FHNE) is carried out in the first phase and fuzzy based technique for order of preference by similarity to ideal solution (FTOPSIS) is executed in the second phase for access network selection. Through simulations, it is validated that the proposed scheme effectively reduces the unnecessary handoffs, decision delay, blocking probability and packet drop ratio (PDR) compared to conventional multiple attribute decision making (MADM) schemes.
2 citations
27 Sep 2022
TL;DR: In this article , a graph theory and matrix approach (GTMA) based on a multi-attribute decision-making (MADM) mechanism is proposed for the ranking of the candidate networks to handle the issues in vertical handover.
Abstract: AbstractThe smooth transfer of user services from an existing network to a new network in vertical handover for providing better quality of experience (QoE) to the users is a challenging task in the field of mobility management. To achieve that level of the QoE, the subscribers of heterogeneous networks may be forced to change the access network or the network operator. For better user experience, network parameters like throughput, packet loss rate (PLR), cost, jitter, and delay, etc., are considered in vertical handover decisions. In this paper, a graph theory and matrix approach (GTMA) based on a multi-attribute decision-making (MADM) mechanism is proposed for the ranking of the candidate networks to handle the issues in vertical handover. The numerical analysis of the proposed approach is performed using conversational traffic in heterogeneous networks. The proposed approach is compared with gray rational analysis (GRA), and the comparative results have revealed that proposed approach is superior to GRA.KeywordsGTMAQoEVertical handoverMobility managementMADM
1 citations
29 Nov 2021
1 citations
TL;DR: The simulation results validate that the proposed scheme outperforms the conventional Multiple Attribute Decision Making (MADM) schemes.
Abstract: The Vehicular Ad hoc NETworks (VANETs) are of high mobile and dynamic in nature They are highly prone to network discontinuity, thereby the applications running on the vehicles get degraded in its
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References
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TL;DR: This paper provides a taxonomy based on the D2D communicating spectrum and review the available literature extensively under the proposed taxonomy to provide new insights into the over-explored and under- Explored areas that lead to identify open research problems of D1D communications in cellular networks.
Abstract: Device-to-device (D2D) communications was initially proposed in cellular networks as a new paradigm for enhancing network performance. The emergence of new applications such as content distribution and location-aware advertisement introduced new user cases for D2D communications in cellular networks. The initial studies showed that D2D communications has advantages such as increased spectral efficiency and reduced communication delay. However, this communication mode introduces complications in terms of interference control overhead and protocols that are still open research problems. The feasibility of D2D communications in Long-Term Evolution Advanced is being studied by academia, industry, and standardization bodies. To date, there are more than 100 papers available on D2D communications in cellular networks, but there is no survey on this field. In this paper, we provide a taxonomy based on the D2D communicating spectrum and review the available literature extensively under the proposed taxonomy. Moreover, we provide new insights into the over-explored and under-explored areas that lead us to identify open research problems of D2D communications in cellular networks.
1,784 citations
TL;DR: The main features of real-world problems for which the outranking approach is appropriate and the concept of outranking relations are described and the definition of such out ranking relations is given for the main ELECTRE methods.
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1,751 citations
TL;DR: In this article, a taxonomy based on the D2D communicating spectrum and review the available literature extensively under the proposed taxonomy is provided, which provides new insights to the over-explored and underexplored areas which lead to identify open research problems of D2DM communication in cellular networks.
Abstract: Device-to-Device (D2D) communication was initially proposed in cellular networks as a new paradigm to enhance network performance. The emergence of new applications such as content distribution and location-aware advertisement introduced new use-cases for D2D communications in cellular networks. The initial studies showed that D2D communication has advantages such as increased spectral efficiency and reduced communication delay. However, this communication mode introduces complications in terms of interference control overhead and protocols that are still open research problems. The feasibility of D2D communications in LTE-A is being studied by academia, industry, and the standardization bodies. To date, there are more than 100 papers available on D2D communications in cellular networks and, there is no survey on this field. In this article, we provide a taxonomy based on the D2D communicating spectrum and review the available literature extensively under the proposed taxonomy. Moreover, we provide new insights to the over-explored and under-explored areas which lead us to identify open research problems of D2D communication in cellular networks.
1,590 citations
TL;DR: A statistical criterion for accepting/rejecting the pairwise reciprocal comparison matrices in the analytic hierarchy process and the advantages are the introduction of adaptability in the acceptance criterion and the simplicity of the index used.
Abstract: In this paper, we present a statistical criterion for accepting/rejecting the pairwise reciprocal comparison matrices in the analytic hierarchy process. We have studied the consistency in random matrices of different sizes. We do not agree with the traditional criterion of accepting matrices due to their inflexibility and because it is too restrictive when the size of the matrix increases. Our system is capable of adapting the acceptance requirements to different scopes and consistency necessities. The advantages of our consistency system are the introduction of adaptability in the acceptance criterion and the simplicity of the index we have used, the eigenvalue (λmax) and the simplicity of the criterion.
717 citations