SymbioCity: Smart Cities for Smarter Networks

The "Smart City" (SC) concept revolves around the idea of embodying cutting-edge ICT solutions in the very fabric of future cities, in order to offer new and better services to citizens while lowering the city management costs, both in monetary, social, and environmental terms. In this framework, communication technologies are perceived as subservient to the SC services, providing the means to collect and process the data needed to make the services function. In this paper, we propose a new vision in which technology and SC services are designed to take advantage of each other in a symbiotic manner. According to this new paradigm, which we call "SymbioCity", SC services can indeed be exploited to improve the performance of the same communication systems that provide them with data. Suggestive examples of this symbiotic ecosystem are discussed in the paper. The dissertation is then substantiated in a proof-of-concept case study, where we show how the traffic monitoring service provided by the London Smart City initiative can be used to predict the density of users in a certain zone and optimize the cellular service in that area.Comment: 14 pages, submitted for publication to ETT Transactions on Emerging Telecommunications Technologie

Secure and Economical Cost Aware Routing Protocol in Wireless Sensor Networks

The main objective of the paper is to supply security and to expand the network lifetime The energy management domain is selected to reinforce the security system in wireless sensor networks A typical wireless sensor network consists of many trivial and low-power sensors that sense radio frequencies to perform disseminate sensing tasks These nodes typically have really restri cted and non-replenish prepared energy resources that produces energy and an important vogue issue for these networks Routing is another really troublesome vogue issue for WSNs Properly designed routing protocol not absolutely guarantees high message delivery relation and low energy consumption for message delivery but in addition it should balance the full sensor network energy consumption and thereby extend the sensor network fundamental measure Throughout this paper the tendency to confer Secure and Economical value Aware Secure Routing protocol for WSNs to balance the energy consumption and enhance the network fundamental measure Further the tendency to reinforce very cheap work to avoid the fake energy indicator nodes by victimizing the house parameter

Millimeter Wave Cellular Networks: A MAC Layer Perspective

The millimeter wave (mmWave) frequency band is seen as a key enabler of multi-gigabit wireless access in future cellular networks. In order to overcome the propagation challenges, mmWave systems use a large number of antenna elements both at the base station and at the user equipment, which lead to high directivity gains, fully-directional communications, and possible noise-limited operations. The fundamental differences between mmWave networks and traditional ones challenge the classical design constraints, objectives, and available degrees of freedom. This paper addresses the implications that highly directional communication has on the design of an efficient medium access control (MAC) layer. The paper discusses key MAC layer issues, such as synchronization, random access, handover, channelization, interference management, scheduling, and association. The paper provides an integrated view on MAC layer issues for cellular networks, identifies new challenges and tradeoffs, and provides novel insights and solution approaches.Comment: 21 pages, 9 figures, 2 tables, to appear in IEEE Transactions on Communication