In recent years, with the spread of IoT services and the amount of data on the network, the importance of D2D communications has emerged in unloading the network, reducing data access time, and improving performance. Due to this importance, in this article, we have reviewed the latest D2D communication solutions in the recent period. Authors proposed categorizing D2D communication solutions into six categories: M2M, V2V, and D2D in cellular networks, D2D with a caching assistant, D2D in socially aware networks, and D2D based on ICN. Writers examined the proposed solutions in each area, elaborating on the methodology employed, the evaluation, the benefits and drawbacks of each proposal. Moreover, based on the study of the presented solutions, we feel that cellular networks and ICN are the most effective for D2D communications, particularly when awareness and social relationships are incorporated into them. We believe that the review presented in this paper will be useful sufficient for developers, researchers as a reference guide to facilitate the design and implementation of D2D communication solutions.
Telecom industry will play a vital role in delivering Internet of Things (IoT) solutions and services. Researchers trust that IoT services deployment by Telecom is inevitable during the next few years. Nowadays, digital development overgrows, thus Telecom operators should consider IoT as the next evolution in their business plans. If an operator's services confined to traditional services such as calling, they will lose a lot of added values and opportunities. In the end, they will find themselves out of the competition. Recently, the research community has addressed this topic and enriched it by highlighting related issues to help operators and researchers to move forward in this field. This paper presents a sound review for this topic covering the most significant related issues such as success elements, strategies and Low-Power Wide-Area (LPWA) standards provided by Telecom operators for IoT provision.
Internet of Things (IoT) plays a vital role in the modern life. The authors see that offering IoT services by telecom operators better than others, especially in developing countries, where the concern of the community related to security issues is the most prominent obstacles. This paper addressed a future vision of IoT services in developing countries by telecom operators. This paper identified the possible opportunities, and obstacles for telecom operators to offer these services. This paper also presented a case study for telecom operators in Yemen. The case study has been taken from MTN and Yemen Mobile operators. The study's samples includes 73 engineers and SPSS has been used to analyse data. The results showed that (91.35%) from MTN's respondents and (81.14%) from Yemen Mobile's respondents agree that offering IoT services by the operator create new opportunities for profit. Also, results concerning to present services that can be provided are eleven services by MTN and seven services by Yemen Mobile operator.
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