Overview of advances in communication technologies
01 Jul 2015-pp 102-106
TL;DR: This paper throws light on the evolution and development of various generations of Mobile wireless technology along with their significance and advantages of one over the other.
Abstract: The Telecommunication networks in the world had a great leap. Over the last few years around 6 billion consumers own mobile phones. In the proposed paper, it has been analyzed the various generations of cellular systems has been studied in the evolution of mobile communications from First Generation (1G) to Seventh Generation (7G). It can be analyzed that this could be due to increase in the Telecommunication customers day by day. The world wide revolution in mobile Phones is changing the lives in term of the working, learning and interacting. In the proposed paper, it has been discussed to review various existing generations of Mobile wireless technologies. This paper throws light on the evolution and development of various generations of Mobile wireless technology along with their significance and advantages of one over the other. There are various applications like Paging Service for 1G, Short Message Service (SMS), Multi Media Service (MMS) for 2G, Video calling for 3G, high speed video calling for 4G and for 5G spectrum free and very fast internet service with Wireless World Wide Web.
Citations
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TL;DR: The proposed HFDI method outperforms Divya Joshi-proposed method by 13% in terms of P D, and the P fa is also improved by 7.5%.
Abstract: Cognitive radio (CR) system plays a major role in spectrum sensing. In cognitive radio, the spectrum slot is assigned to user intellectually according to a prescribed algorithm. Different researche...
14 citations
Additional excerpts
...In CR network, spectrum slot is preferably used by primary users (PU), and it can be used by secondary users (SU) when the spectrum is not utilized by the PU [1, 2]....
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TL;DR: The authors made an attempt to enhance the characteristic performances compared to existing methods, matched filter detection, cyclostationary detection and hybrid filter detection in this non cooperative detection method of CR systems.
Abstract: In the recent developments, the spectrum sensing and detection plays a major importance in day to day communication and it is very much essential for the user to utilize the spectrum bandwidth effectively in cognitive radio (CR) networks. The major performance metrics constraint that causes severe problems in spectrum sensing are probability of false alarm $$(\hbox {P}_{\mathrm{fa}})$$ and probability of miss detection $$(\hbox {P}_{\mathrm{md}})$$. In the proposed paper, the authors made an attempt to enhance the characteristic performances compared to existing methods, matched filter detection, cyclostationary detection and hybrid filter detection. The three detection methods are incorporated in to this non cooperative detection method of CR systems. In the proposed research work, a simulation result are obtained by using MATLab of the modified detection methods and shows the better performance by improving probability of detection $$(\hbox {P}_{\mathrm{D}})$$ and reducing $$\hbox {P}_{\mathrm{fa}}$$, $$\hbox {P}_{\mathrm{md}}$$.
11 citations
29 Mar 2018
TL;DR: Performance evaluation shows that some of the new schemes, while simple in design, offer high cache hit ratios, low latency of request services, preferential treatment based on users' service levels, and a reduction in network traffic as compared with other existing and classic caching mechanisms.
Abstract: Advances in cellular network technology continue to develop to address increasing demands from the growing number of Internet of Things (IoT) devices. IoT has brought forth countless new equipment competing for service on cellular networks. The latest in cellular technology is 5th Generation Cloud Radio Access Networks, or 5G C-RAN, which consists of applying cloud computing technology to the RAN architecture for better resource utilization and increased flexibility and scalability. A cache is included in each VM for speedy cellular network services, there is thus a necessity for efficient cache management schemes, which ultimately will provide better user experiences. This paper designs new cache management schemes and evaluates their performance. The new algorithms include a probability-based scoring scheme, a hierarchical, or tiered, approach, and enhancements to previously existing approaches. Performance evaluation shows that some of the new schemes, while simple in design, offer high cache hit ratios, low latency of request services, preferential treatment based on users' service levels, and a reduction in network traffic as compared with other existing and classic caching mechanisms. We believe that this work is important in advancing 5G technology for supporting IoT services, and is also useful to other cache management systems.
9 citations
01 Sep 2020
1 citations
References
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01 Jan 2010
TL;DR: This paper provides a high level overview of the evolution of Mobile Wireless Communication Networks from 1G to 4G.
Abstract: Mobile communications systems revolutionized the way people communicate, joining together communications and mobility. A long way in a remarkably short time has been achieved in the history of wireless. Evolution of wireless access technologies is about to reach its fourth generation (4G). Looking past, wireless access technologies have followed different evolutionary paths aimed at unified target: performance and efficiency in high mobile environment. The first generation (1G) has fulfilled the basic mobile voice, while the second generation (2G) has introduced capacity and coverage. This is followed by the third generation (3G), which has quest for data at higher speeds to open the gates for truly “mobile broadband” experience, which will be further realized by the fourth generation (4G). The Fourth generation (4G) will provide access to wide range of telecommunication services, including advanced mobile services, supported by mobile and fixed networks, which are increasingly packet based, along with a support for low to high mobility applications and wide range of data rates, in accordance with service demands in multiuser environment. This paper provides a high level overview of the evolution of Mobile Wireless Communication Networks from 1G to 4G.
107 citations
TL;DR: 5G (Fifth Generation) network architecture consisting of reconfigurable multitechnology core and a single fully reconfigured terminal able to autonomously operate in different heterogeneous access networks is proposed.
Abstract: This paper explores future mobile systems with emphasis on re-configurability based on cognitive and software defined radios 5G (Fifth Generation) network architecture consisting of reconfigurable multitechnology core and a single fully reconfigurable terminal able to autonomously operate in different heterogeneous access networks is proposed The proposed network is enforced by nanotechnology, cloud computing and based on All IP Platform The paper highlights 5G main development challenges and illustrates why there is a need for 5G It also reviews in brief the evolution of wireless and cellular systems focusing on four main key factors: radio access, data rates, bandwidth and switching schemes in addition to change in network architecture The 3G transitional cellular and wireless systems toward 4G and the true 4G IMT-advanced systems are thoroughly presented
57 citations
TL;DR: Different technology which will be included in 5G mobile network is that user can simultaneously connect to the multiple wireless technologies and can switch between them, making future mobile technology more powerful and more in demand.
Abstract: Currently, Mobile operators are busy with deployment of 4G technology namely, LTE-advanced or WIMAX 802.16m. This 4G technology will be concluded within two years. 5G technology is not standardizing yet, probably 5G standard will define in two to three years, and its deployment will start around 2020. In future, people will expect same quality of internet connectivity as the device is capable. This technology will include all types of advanced features, which make 5G technology more powerful. The main features we want to add in 5G mobile network is that user can simultaneously connect to the multiple wireless technologies and can switch between them. Forthcoming mobile technology has to support IPv6 and flat IP. This paper explains different technology which we want to include making future mobile technology more powerful and more in demand.
51 citations
TL;DR: The energy-efficient radio resource management (RRM) for Long Term Evolution (LTE) systems is addressed, and different types of energy efficiency metrics are defined to give a better understanding to the energy efficiency perspectives.
Abstract: Conventional design of cellular systems aims to maximize the system capacity and spectral efficiency due to sustainable growth of data rate requirements. As the energy consumption becomes relatively high, energy-efficient design for cellular systems is highly required to save energy as well as reducing the undesirable carbon dioxide emitted by these systems. However, reducing the energy consumption will degrade other system performances such as the data rate and quality of service. Therefore, joint optimization for overall system performances should be achieved. In this paper, the energy-efficient radio resource management (RRM) for Long Term Evolution (LTE) systems is addressed. After a brief introduction to LTE radio resource block and LTE frame, different types of energy efficiency metrics are defined to give a better understanding to the energy efficiency perspectives. The energy-efficient approaches related to link adaptation and RRM are explained. The state-of-the-art energy-efficient schedu...
27 citations
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TL;DR: Some of the future generation technologies will be embedded with 2G and 2.5G so that general masses may get the advantage of internet, multimedia services and the operators may get proper revenues with little extra expenditure in the existing mobile communication networks.
Abstract: The future of mobile wireless communication networks will include existing 3 rd generation, 4 th generation (implemented in Japan, USA, South Korea etc.), 5 th generation (based on cognitive radio which implies the whole wireless world interconnection & WISDOM – Wireless innovative System for Dynamic Operating Megacommunications concept), 6 th generation (with very high data rates Quality of Service (QoS) and service applications) and 7 th generation (with space roaming). This paper is focused on the specifications of future generations and latest technologies to be used in future wireless mobile communication networks. However keeping in view the general poor masses of India, some of the future generation technologies will be embedded with 2G and 2.5G so that general masses may get the advantage of internet, multimedia services and the operators may get proper revenues with little extra expenditure in the existing mobile communication networks.
9 citations