Page 114 - Proceedings of the 2017 ITU Kaleidoscope
P. 114

2017 ITU Kaleidoscope Academic Conference




                2. THE 5G-WIRELESS MOBILE-NETWORK             microprocessors into objects, allowing communication and
                   AND THE INTERNET OF THINGS                 task-performing.
                                                              In contrast to desktop computing, ubiquitous computing can
           The disrupting fifth-generation wireless mobile-network   occur using any device, in any location, and in any format.
           technology (5G) [7] and the way it will gradually affect the   A user interacts with the computer, which can exist in many
           Health-services, supported and automated by the Internet of   different forms, including laptop computers, tablets and
           Things  (IoT),  constitutes  undouptly [8], [9] the most   terminals in everyday objects such as a fridge or a pair of
           important challenge for the next decade.           glasses. The underlying technologies to support ubiquitous
           Future 5G networks will be about 100 times faster, non-loss   computing include Internet, advanced  middleware,
                                                              operating  system,  mobile code, sensors, microprocessors,
           of communication should be their central feature and their   new I/O and user  interfaces,  networks, mobile protocols,
           major-goal, beyond the dramatically  enhanced  inter-  location and positioning and new materials.
           connection of people, is the interoperable and automated
           interlacing of any devices, within the same network.
           In this part, we shall attempt to present briefly, some of the   2.4. Femtocells
           existing or emerging effective and efficient methods, means
           and  tools, reducing unnecessary cost and facilitating the   Femtocells are small, low-power cellular base-stations [13].
           smooth integration into a new technological era, related to   It is a wireless access point that improves cellular reception
           the IoT and the achieving of a globally 5G mobile culture.   inside a home, office or even  in  a Medical Praxis. The
                                                              device, which resembles a wireless router, essentially acts
           2.1. Mobile IP                                     as a repeater.
                                                              The  device communicates with the mobile phone and
           Mobile IP (MIP) is an Internet Engineering Task Force   converts voice calls into voice over IP (VoIP) packets. The
                                                              packets are then transmitted over a broadband connection to
           (IETF) standard communications protocol that is designed   the mobile operator's servers.
           to allow mobile device users to move from one network to
           another while maintaining a permanent IP address.
           Mobile  IP  for IPv4 is described in IETF RFC 5944, and   2.5. Wireless mesh-networks
           extensions are defined in IETF RFC 4721. Mobile IPv6, the
           IP mobility implementation for the  next generation of the   A  wireless mesh network (WMN) is a communications
           Internet Protocol, IPv6, is described in RFC 6275 [10].   network made up of radio nodes organized in  a  mesh
                                                              topology.  It  is  also  a form of wireless ad hoc network. A
           2.2. Service-oriented architectures                mesh refers to rich interconnection among devices or nodes.
                                                              Wireless mesh networks often consist of mesh clients, mesh
                                                              routers and gateways [14].
           A service-oriented architecture (SOA) is a style of software
           design where services are provided to the other components
           by application components, through a  communication   2.6. Multimedia-sharing over wireless networks
           protocol  over  a  network  [11].  The  basic  principles  of
           service oriented architecture are independence of vendors,   Multimedia-sharing over wireless networks for real-time or
           products and technologies.                         compressed (PACS, ICU,  Lab etc.) data-streaming, over
           A  service  is  a discrete unit of functionality that can be   IP/wireless-networks, for communication or archiving. The
           accessed remotely and acted  upon  and updated     availability of low-cost  hardware  has fostered the
           independently, such as retrieving a credit  card  statement   development  of  Wireless Multimedia Sensor Networks
           online.                                            (WMSNs). These networks of  wirelessly  interconnected
           A  service  has four properties, according to one of many   devices are able to ubiquitously retrieve multimedia content
           definitions of SOA [11]:                           such as video and audio streams, still images, and scalar
                                                              sensor data from the “environment” [15].
           •   It  logically represents a business activity with a
               specified outcome.
           •   It is self-contained.                          2.7. “Green-computing” in wireless-networks
           •   It is a black-box for its consumers.             Green-computing [16] in wireless-networks mobile cloud-
           •   It may consist of other underlying services.   computing, are limiting useless people and material intra-
                                                              hospital  “circulation”,  enabling  environmentally  friendly
           2.3. Ubiquitous-computing                          and  smooth procedures. Standardization, policies and
                                                              regulation,  for green communications and computing, are
           Ubiquitous-computing (or pervasive computing etc.) [12]   inevitable, for an ordered and productive employment.
           appears anytime and everywhere, by embedding       ICTs for “green” buildings enable procedures optimization,
                                                              solving energy- and material-waste problems, reducing the




                                                          – 98 –
   109   110   111   112   113   114   115   116   117   118   119