{"id":2520,"date":"2011-06-20T11:30:25","date_gmt":"2011-06-20T11:30:25","guid":{"rendered":"http:\/\/temsec.ds.unipi.gr\/?p=2520"},"modified":"2017-10-17T11:35:24","modified_gmt":"2017-10-17T08:35:24","slug":"modern-wireless-networks-2","status":"publish","type":"post","link":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/modern-wireless-networks-2\/","title":{"rendered":"\u03a3\u03cd\u03b3\u03c7\u03c1\u03bf\u03bd\u03b1 \u0391\u03c3\u03cd\u03c1\u03bc\u03b1\u03c4\u03b1 \u0394\u03af\u03ba\u03c4\u03c5\u03b1"},"content":{"rendered":"<h3>\u03a3\u03c4\u03cc\u03c7\u03bf\u03c2<\/h3>\n<p style=\"text-align: justify;\">\u03a4\u03b1 \u03c4\u03b5\u03bb\u03b5\u03c5\u03c4\u03b1\u03af\u03b1 \u03c7\u03c1\u03cc\u03bd\u03b9\u03b1 \u03c4\u03b1 \u03b4\u03af\u03ba\u03c4\u03c5\u03b1 \u03c4\u03b7\u03bb\u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03b9\u03ce\u03bd \u03b1\u03bb\u03bb\u03ac\u03b6\u03bf\u03c5\u03bd \u03bc\u03b5 \u03c3\u03ba\u03bf\u03c0\u03cc \u03bd\u03b1 \u03bc\u03c0\u03bf\u03c1\u03ad\u03c3\u03bf\u03c5\u03bd \u03bd\u03b1 \u03b1\u03bd\u03c4\u03b1\u03c0\u03bf\u03ba\u03c1\u03b9\u03b8\u03bf\u03cd\u03bd \u03c3\u03c4\u03b7\u03bd \u03bf\u03bb\u03bf\u03ad\u03bd\u03b1 \u03ba\u03b1\u03b9 \u03b1\u03c5\u03be\u03b1\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7 \u03b5\u03b9\u03c3\u03b1\u03b3\u03c9\u03b3\u03ae \u03bd\u03ad\u03c9\u03bd \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ce\u03bd \u03c3\u03c4\u03bf \u03b4\u03af\u03ba\u03c4\u03c5\u03bf (\u03c0.\u03c7. smarphones, IoT). \u0395\u03b9\u03c3\u03ac\u03b3\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bd\u03ad\u03b5\u03c2 \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b5\u03c2 \u03bc\u03b5 \u03c3\u03ba\u03bf\u03c0\u03cc \u03bd\u03b1 \u03bc\u03b5\u03b9\u03ce\u03c3\u03bf\u03c5\u03bd \u03c4\u03bf \u03ba\u03cc\u03c3\u03c4\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03bf\u03cd \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03b4\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b9\u03c3\u03b7\u03c2. \u03a3\u03c4\u03cc\u03c7\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03bc\u03b1\u03b8\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bd\u03b1 \u03c0\u03b5\u03c1\u03b9\u03b3\u03c1\u03b1\u03c6\u03bf\u03cd\u03bd \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b5\u03be\u03b7\u03b3\u03b7\u03b8\u03bf\u03cd\u03bd \u03bf\u03b9 \u03bd\u03ad\u03b5\u03c2 \u03b1\u03c5\u03c4\u03ad\u03c2 \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd:<br \/>\nSoftware Defined Networking (SDN) \u03ba\u03b1\u03b9 Network Functions Virtualisation (NFV), \u03bc\u03ad\u03c3\u03c9 \u03bc\u03af\u03b1 \u03c3\u03b5\u03b9\u03c1\u03ac\u03c2 \u03b4\u03b9\u03b1\u03bb\u03ad\u03be\u03b5\u03c9\u03bd \u03ba\u03b1\u03b9 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ce\u03bd \u03bc\u03b1\u03b8\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd. \u0395\u03c0\u03af\u03c3\u03b7\u03c2 \u03b8\u03b1 \u03bc\u03b5\u03bb\u03b5\u03c4\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ad\u03c2 \u03bc\u03b5\u03c4\u03ac\u03b4\u03bf\u03c3\u03b7\u03c2 \u039c\u0399\u039c\u039f \u03ba\u03b1\u03b9 OFDM \u03b3\u03b9\u03b1 \u03b1\u03c3\u03cd\u03c1\u03bc\u03b1\u03c4\u03b1 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 4G.<\/p>\n<h3>\u03a0\u03b5\u03c1\u03b9\u03b5\u03c7\u03cc\u03bc\u03b5\u03bd\u03b1<\/h3>\n<ul>\n<li>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 1: \u0395\u03b9\u03c3\u03b1\u03b3\u03c9\u03b3\u03ae \u03c3\u03c4\u03b1 \u03c0\u03c1\u03bf\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1\u03c4\u03b9\u03b6\u03cc\u03bc\u03b5\u03bd\u03b1 \u03b4\u03af\u03ba\u03c4\u03c5\u03b1. \u0399\u03c3\u03c4\u03bf\u03c1\u03b9\u03ba\u03ae \u03b1\u03bd\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae \u03bc\u03ad\u03c7\u03c1\u03b9 \u03c4\u03b9\u03c2 \u03c4\u03c1\u03ad\u03c7\u03bf\u03c5\u03c3\u03b5\u03c2 \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2. \u0395\u03b9\u03c3\u03b1\u03b3\u03c9\u03b3\u03ae \u03c3\u03c4\u03b1 \u03b4\u03af\u03ba\u03c4\u03c5\u03b1 SDN &amp; NFV. \u03a0\u03b1\u03c1\u03b1\u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03b1 \u03c7\u03c1\u03ae\u03c3\u03b7\u03c2 \u03c3\u03c4\u03b9\u03c2 \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 \u03c4\u03b7\u03bb\u03b5\u03c6\u03c9\u03bd\u03b9\u03ba\u03ce\u03bd \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd \u03c4\u03ad\u03c4\u03b1\u03c1\u03c4\u03b7\u03c2 \u03b3\u03b5\u03bd\u03b9\u03ac\u03c2.<\/li>\n<li>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 2: \u0395\u03bc\u03b2\u03ac\u03b8\u03c5\u03bd\u03c3\u03b7 \u03c3\u03c4\u03b9\u03c2 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03c1\u03c9\u03c4\u03cc\u03ba\u03bf\u03bb\u03bb\u03b1 SDN \u03bc\u03b5 \u03ad\u03bc\u03c6\u03b1\u03c3\u03b7 \u03c3\u03c4\u03bf \u03c4\u03bc\u03ae\u03bc\u03b1 \u03b5\u03bb\u03ad\u03b3\u03c7\u03bf\u03c5 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ce\u03bd. \u03a0\u03c1\u03c9\u03c4\u03cc\u03ba\u03bf\u03bb\u03bb\u03b1 \u03ba\u03b1\u03b9 \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03b1 ForCES, OpenFlow.<\/li>\n<li>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 3: \u0395\u03bc\u03b2\u03ac\u03b8\u03c5\u03bd\u03c3\u03b7 \u03c3\u03c4\u03b9\u03c2 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03c1\u03c9\u03c4\u03cc\u03ba\u03bf\u03bb\u03bb\u03b1 SDN \u03bc\u03b5 \u03ad\u03bc\u03c6\u03b1\u03c3\u03b7 \u03c3\u03c4\u03bf \u03c4\u03bc\u03ae\u03bc\u03b1 \u03b4\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b9\u03c3\u03b7\u03c2 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ce\u03bd. \u03a0\u03c1\u03c9\u03c4\u03cc\u03ba\u03bf\u03bb\u03bb\u03b1 NETCONF, PCEP \u03ba\u03b1\u03b9 \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf\u03c5 YANG. \u0391\u03bd\u03bf\u03b9\u03c7\u03c4\u03ac \u03bb\u03bf\u03b3\u03b9\u03c3\u03bc\u03b9\u03ba\u03ac (OpenDaylight, Floodlight, NOX).<\/li>\n<li>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 4: \u0394\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b5\u03c2 \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03c9\u03bd \u03b4\u03b9\u03ba\u03c4\u03c5\u03b1\u03ba\u03ce\u03bd \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ce\u03bd \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 \u03b4\u03c5\u03cc \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03b1 (ForCES &amp; YANG). \u03a7\u03c1\u03ae\u03c3\u03b7 OpenFlow \u03b3\u03b9\u03b1 \u03c0\u03c1\u03bf\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1\u03c4\u03b9\u03c3\u03bc\u03cc \u03b4\u03b9\u03ba\u03c4\u03c5\u03b1\u03ba\u03ce\u03bd \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ce\u03bd \u03bc\u03b5 \u03b5\u03be\u03bf\u03bc\u03bf\u03b9\u03c9\u03c4\u03ae (Mininet).<\/li>\n<li>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 5: \u0395\u03bc\u03b2\u03ac\u03b8\u03c5\u03bd\u03c3\u03b7 \u03c3\u03c4\u03b9\u03c2 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b5\u03c2 NFV. \u0391\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ae, \u03b4\u03b9\u03b5\u03c0\u03b1\u03c6\u03ad\u03c2.<\/li>\n<li>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 6: \u0395\u03bc\u03b2\u03ac\u03b8\u03c5\u03bd\u03c3\u03b7 \u03c3\u03c4\u03b9\u03c2 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b5\u03c2 virtualization &#8211; Virtual Machines, Containers, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03b1\u03c1\u03b1\u03b4\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03b1 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03b9\u03ce\u03bd &#8211; \u03c0.\u03c7. Docker, Kubernetes, Linux Container.<\/li>\n<li>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 7: \u0394\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03b5\u03b9\u03ba\u03bf\u03bd\u03b9\u03ba\u03ce\u03bd \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ce\u03bd \u03ba\u03b1\u03b9 \u03b5\u03b9\u03ba\u03bf\u03bd\u03b9\u03ba\u03ce\u03bd \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ad\u03c2 \u03b5\u03b9\u03ba\u03bf\u03bd\u03b9\u03ba\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7\u03c2 &#8211; Virtualization &amp; containers.<\/li>\n<li>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 8: \u039c\u0399\u039c\u039f (for diversity or spatial multiplexing) \u03ba\u03b1\u03b9 OFDM (channel aware user data scheduling).<\/li>\n<li>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 9: Long Term Evolution (LTE) physical layer and network architecture.<\/li>\n<li>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 10: Small Cells, C-RAN \u03ba\u03b1\u03b9 Distributed Antenna Systems (DAS).<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u03a3\u03c4\u03cc\u03c7\u03bf\u03c2 \u03a4\u03b1 \u03c4\u03b5\u03bb\u03b5\u03c5\u03c4\u03b1\u03af\u03b1 \u03c7\u03c1\u03cc\u03bd\u03b9\u03b1 \u03c4\u03b1 \u03b4\u03af\u03ba\u03c4\u03c5\u03b1 \u03c4\u03b7\u03bb\u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03b9\u03ce\u03bd \u03b1\u03bb\u03bb\u03ac\u03b6\u03bf\u03c5\u03bd \u03bc\u03b5 \u03c3\u03ba\u03bf\u03c0\u03cc \u03bd\u03b1 \u03bc\u03c0\u03bf\u03c1\u03ad\u03c3\u03bf\u03c5\u03bd \u03bd\u03b1 \u03b1\u03bd\u03c4\u03b1\u03c0\u03bf\u03ba\u03c1\u03b9\u03b8\u03bf\u03cd\u03bd \u03c3\u03c4\u03b7\u03bd \u03bf\u03bb\u03bf\u03ad\u03bd\u03b1 \u03ba\u03b1\u03b9 \u03b1\u03c5\u03be\u03b1\u03bd\u03cc\u03bc\u03b5\u03bd\u03b7 \u03b5\u03b9\u03c3\u03b1\u03b3\u03c9\u03b3\u03ae \u03bd\u03ad\u03c9\u03bd \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ce\u03bd \u03c3\u03c4\u03bf \u03b4\u03af\u03ba\u03c4\u03c5\u03bf (\u03c0.\u03c7. smarphones, IoT). \u0395\u03b9\u03c3\u03ac\u03b3\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bd\u03ad\u03b5\u03c2 \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b5\u03c2 \u03bc\u03b5 \u03c3\u03ba\u03bf\u03c0\u03cc \u03bd\u03b1 \u03bc\u03b5\u03b9\u03ce\u03c3\u03bf\u03c5\u03bd \u03c4\u03bf \u03ba\u03cc\u03c3\u03c4\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03bf\u03cd \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03b4\u03b9\u03b1\u03c7\u03b5\u03af\u03c1\u03b9\u03c3\u03b7\u03c2. \u03a3\u03c4\u03cc\u03c7\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03bc\u03b1\u03b8\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bd\u03b1 \u03c0\u03b5\u03c1\u03b9\u03b3\u03c1\u03b1\u03c6\u03bf\u03cd\u03bd \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b5\u03be\u03b7\u03b3\u03b7\u03b8\u03bf\u03cd\u03bd \u03bf\u03b9 \u03bd\u03ad\u03b5\u03c2 \u03b1\u03c5\u03c4\u03ad\u03c2 \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ad\u03c2 [&hellip;]<\/p>\n","protected":false},"author":47,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[53,52],"tags":[],"_links":{"self":[{"href":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/wp-json\/wp\/v2\/posts\/2520"}],"collection":[{"href":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/wp-json\/wp\/v2\/users\/47"}],"replies":[{"embeddable":true,"href":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/wp-json\/wp\/v2\/comments?post=2520"}],"version-history":[{"count":16,"href":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/wp-json\/wp\/v2\/posts\/2520\/revisions"}],"predecessor-version":[{"id":4659,"href":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/wp-json\/wp\/v2\/posts\/2520\/revisions\/4659"}],"wp:attachment":[{"href":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/wp-json\/wp\/v2\/media?parent=2520"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/wp-json\/wp\/v2\/categories?post=2520"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/wp-json\/wp\/v2\/tags?post=2520"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}