Akhil Gupta

A Survey of 5G Network: Architecture and Emerging Technologies

In the near future, i.e., beyond 4G, some of the prime objectives or demands that need to be addressed are increased capacity, improved data rate, decreased latency, and better quality of service. To meet these demands, drastic improvements need to be made in cellular network architecture. This paper presents the results of a detailed survey on the fifth generation (5G) cellular network architecture and some of the key emerging technologies that are helpful in improving the architecture and meeting the demands of users. In this detailed survey, the prime focus is on the 5G cellular network architecture, massive multiple input multiple output technology, and device-to-device communication (D2D). Along with this, some of the emerging technologies that are addressed in this paper include interference management, spectrum sharing with cognitive radio, ultra-dense networks, multi-radio access technology association, full duplex radios, millimeter wave solutions for 5G cellular networks, and cloud technologies for 5G radio access networks and software defined networks. In this paper, a general probable 5G cellular network architecture is proposed, which shows that D2D, small cell access points, network cloud, and the Internet of Things can be a part of 5G cellular network architecture. A detailed survey is included regarding current research projects being conducted in different countries by research groups and institutions that are working on 5G technologies.

Power optimization using massive MIMO and small cells approach in different deployment scenarios

Power optimization is an important area of concern for the wireless communication in 5G. With the increase in the number of users or subscribers, more amount of power is required for transmission, reception and processing. Hence certain methods or specific technologies should be used to minimize or optimize this power. The main contribution of the paper comprises of the use of massive multiple input multiple output and small cell access point (SCA) approach for the power optimization and the effect of frequency division duplexing and time division duplexing techniques on power optimization. This paper also predicts the optimal number of antennas at the SCA points which are helpful for increasing the degrees of freedom which helps in power optimization. Along with these ideas of power optimization, the prime focus is on the realization of these power optimization approaches on the different deployment scenarios like urban macro heterogeneous deployment scenario in the 3GPP LTE Standard and urban, sub-urban, and rural macro deployment scenario in the ITU-R M.2135 standard.

Security threats of wireless networks: A survey

Security will play an important role in wireless networks. In the present scenario, 3G and 4G networks have separate security layers but still there is a possibility of certain prominent types of attacks. In this paper, a survey has been done on all the possible attacks that may occur in present and future scenarios. Wireless network attacks are classified on the basis of access control, authentication, availability, confidentiality and integrity as attacks can appear in the form of Access, channel assignment and at the source end. This paper also reflects about the next generation attacks like Man in the Middle Attack, Denial of Service Attack and Eavesdropping. The security methods and tools which helps to find the protection against different types of attacks is also shown in this paper.

Attack modeling and intrusion detection system for 5G wireless communication network

Summary Research has been going around the globe to overcome the challenges that are associated with the increase in the number of users, such as interference management, load sharing, and increased capacity. 5G is emerging as a budding prospect for fulfilling demand and overcoming these challenges. For meeting the increased demands, new technologies such as relays in device-to-device communication and small cell access points have been introduced. However, these introductions have opened up security issues in the 5G wireless communication networks. This article focuses on security issues of the 5G wireless communication networks and analyzes the effect of a bandwidth spoofing attack using game theory on the small cell access point in 5G wireless communication network. This article also proposes an adaptive intrusion detection system using a hidden Markov Model for detecting an intrusion on small cell access point in a 5G wireless communication networks.

Power optimization using optimal small cell arrangements in different deployment scenarios

Int J Commun Syst. 2017;e3279. https://doi.org/10.1002/dac.3279 Summary For smooth transition from 4G to 5G, there is a need for optimizing the power in the wireless communication. In 5G, it is expected that the number of users will increase drastically that correspondingly increase the utilization of power in the transmitter and receiver sides. So researchers and academicians are now finding ways to optimize the power. Some optimizing methods like convex optimization are very helpful for optimized algorithm design. In this paper, a proposed mathematical approach for deployment of small cell access point is used for optimizing the power consumption in the massive multiple input and multiple output and small cell scenario. The new proposed mathematical approach will also help in deciding the optimal number of small cell access points and optimal location of these small cell access points for the particular deployment scenario like urban macro heterogeneous deployment scenario in the 3GPP LTE standard and different macro deployment scenario in the ITU‐R M.2135 standard like urban macro, suburban macro, and rural macro, for optimizing the power.