{"id":2516,"date":"2011-06-20T12:30:40","date_gmt":"2011-06-20T12:30:40","guid":{"rendered":"http:\/\/temsec.ds.unipi.gr\/?p=2516"},"modified":"2017-09-07T13:33:33","modified_gmt":"2017-09-07T10:33:33","slug":"telecommunications-infrastructures-and-services-2","status":"publish","type":"post","link":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/telecommunications-infrastructures-and-services-2\/","title":{"rendered":"\u03a4\u03b7\u03bb\u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03b9\u03b1\u03ba\u03ad\u03c2 \u03a5\u03c0\u03bf\u03b4\u03bf\u03bc\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03a5\u03c0\u03b7\u03c1\u03b5\u03c3\u03af\u03b5\u03c2"},"content":{"rendered":"<h3>\u03a3\u03c4\u03cc\u03c7\u03bf\u03c2<\/h3>\n<p><strong>\u039c\u03ad\u03c1\u03bf\u03c2 \u0399: <\/strong><\/p>\n<ul>\n<li>\u0395\u03be\u03bf\u03b9\u03ba\u03b5\u03af\u03c9\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03b9\u03c2 \u03b2\u03b1\u03c3\u03b9\u03ba\u03ad\u03c2 \u03ad\u03bd\u03bd\u03bf\u03b9\u03b5\u03c2 \u03c4\u03c9\u03bd \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd \u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03b9\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c4\u03c9\u03bd \u03c3\u03cd\u03b3\u03c7\u03c1\u03bf\u03bd\u03c9\u03bd \u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd.<\/li>\n<li>\u03a0\u03b1\u03c1\u03bf\u03c5\u03c3\u03af\u03b1\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b4\u03bf\u03bc\u03b9\u03ba\u03ce\u03bd \u03c3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af\u03c9\u03bd \u03c4\u03c9\u03bd \u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03c4\u03b7\u03bb\u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03b9\u03b1\u03ba\u03ce\u03bd \u03c3\u03c5\u03c3\u03c4\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03ba\u03b1\u03b9 \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd.<\/li>\n<li>\u039c\u03b5\u03bb\u03ad\u03c4\u03b7 \u03c4\u03c9\u03bd \u03b2\u03b1\u03c3\u03b9\u03ba\u03ce\u03bd \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ce\u03bd \u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd \u03ba\u03bf\u03c1\u03bc\u03bf\u03cd \u03ba\u03b1\u03b9 \u03c0\u03c1\u03cc\u03c3\u03b2\u03b1\u03c3\u03b7\u03c2.<\/li>\n<li>\u03a0\u03b1\u03c1\u03bf\u03c5\u03c3\u03af\u03b1\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c3\u03cd\u03b3\u03c7\u03c1\u03bf\u03bd\u03c9\u03bd \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ce\u03bd \u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd.<\/li>\n<\/ul>\n<p>\u03a4\u03bf \u03bc\u03ac\u03b8\u03b7\u03bc\u03b1 \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03b4\u03b9\u03b1\u03bb\u03ad\u03be\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03b9\u03ac\u03c3\u03b5\u03b9\u03c2 \u03c0\u03c1\u03bf\u03c3\u03bf\u03bc\u03bf\u03af\u03c9\u03c3\u03b7\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd \u03c3\u03c4\u03bf \u03b5\u03c1\u03b3\u03b1\u03c3\u03c4\u03ae\u03c1\u03b9\u03bf.<\/p>\n<p><strong>\u039c\u03ad\u03c1\u03bf\u03c2 \u0399\u0399: <\/strong><br \/>\n\u0397 \u03b5\u03b9\u03c3\u03b1\u03b3\u03c9\u03b3\u03ae \u03c3\u03b5 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u0399\u03bf\u03a4 \u03ba\u03b1\u03b9 \u03b7 \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03af\u03b1\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03bf\u03cd \u03bf\u03b9\u03ba\u03bf\u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03bf\u03c7\u03ae \u03bb\u03cd\u03c3\u03b5\u03c9\u03bd \u0399\u03bf\u03a4. \u03a0\u03b5\u03c1\u03b9\u03b3\u03c1\u03b1\u03c6\u03ae \u03c4\u03b7\u03c2 \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ae\u03c2 \u03b4\u03bf\u03bc\u03ae\u03c2 \u03c4\u03c9\u03bd \u03bb\u03cd\u03c3\u03b5\u03c9\u03bd (\u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03cc\u03c2, \u03b4\u03af\u03ba\u03c4\u03c5\u03bf \u03bc\u03b5\u03c4\u03ac\u03b4\u03bf\u03c3\u03b7\u03c2, \u03c0\u03bb\u03b1\u03c4\u03c6\u03cc\u03c1\u03bc\u03b5\u03c2, \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2). \u03a0\u03b1\u03c1\u03bf\u03c5\u03c3\u03af\u03b1\u03c3\u03b7 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03c9\u03bd \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ce\u03bd.<\/p>\n<h3>\u03a0\u03b5\u03c1\u03b9\u03b5\u03c7\u03cc\u03bc\u03b5\u03bd\u03b1<\/h3>\n<p><strong>\u039c\u03ad\u03c1\u03bf\u03c2 \u0399: <\/strong><\/p>\n<ul>\n<li><strong>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 1:<\/strong> \u03a0\u03c1\u03c9\u03c4\u03cc\u03ba\u03bf\u03bb\u03bb\u03bf \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03c3\u03b7\u03c2 \u0399\u03a1 (\u0399\u03a1v4 &amp; IPv6), \u039cobile IP (\u039c\u0399\u03a1v4 &amp; \u039cIPv6), \u03b4\u03b9\u03b5\u03c5\u03b8\u03c5\u03bd\u03c3\u03b9\u03bf\u03b4\u03cc\u03c4\u03b7\u03c3\u03b7, \u03c5\u03c0\u03bf\u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03c3\u03b7. A\u03c3\u03ba\u03ae\u03c3\u03b5\u03b9\u03c2.<\/li>\n<li><strong>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 2:<\/strong> \u0394\u03b9\u03ba\u03c4\u03c5\u03b1\u03ba\u03ad\u03c2 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b5\u03c2: \u039c\u03b5\u03c4\u03b1\u03b3\u03c9\u03b3\u03ae, \u03b4\u03c1\u03bf\u03bc\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7, \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b5\u03be\u03c5\u03c0\u03b7\u03c1\u03ad\u03c4\u03b7\u03c3\u03b7\u03c2, \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03b4\u03b9\u03ba\u03c4\u03c5\u03b1\u03ba\u03ae\u03c2 \u03ba\u03af\u03bd\u03b7\u03c3\u03b7\u03c2, \u03c0\u03c1\u03c9\u03c4\u03cc\u03ba\u03bf\u03bb\u03bb\u03b1 \u03ba\u03b1\u03b9 \u03c5\u03c0\u03b7\u03c1\u03b5\u03c3\u03af\u03b5\u03c2 \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd (DHCP, DNS, ICMP, ARP\/RARP, NAT, SIP). \u0391\u03c3\u03ba\u03ae\u03c3\u03b5\u03b9\u03c2.<\/li>\n<li><strong>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 3:<\/strong> \u03a3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc\u03c2 \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd: \u0391\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03b1\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03c9\u03bd (\u03b5\u03c0\u03b9\u03c7\u03b5\u03b9\u03c1\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03bf\u03af \u03c3\u03c4\u03cc\u03c7\u03bf\u03b9 \u03ba\u03b1\u03b9 \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ad\u03c2 \u03b1\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2). \u039b\u03bf\u03b3\u03b9\u03ba\u03cc\u03c2 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc\u03c2 \u03b4\u03b9\u03ba\u03c4\u03cd\u03bf\u03c5 (\u03b4\u03b9\u03b5\u03c5\u03b8\u03c5\u03bd\u03c3\u03b9\u03bf\u03b4\u03cc\u03c4\u03b7\u03c3\u03b7-\u03bf\u03bd\u03bf\u03bc\u03b1\u03c4\u03bf\u03bb\u03bf\u03b3\u03af\u03b1, \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c0\u03c1\u03c9\u03c4\u03bf\u03ba\u03cc\u03bb\u03bb\u03c9\u03bd \u03bc\u03b5\u03c4\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2-\u03b4\u03c1\u03bf\u03bc\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7\u03c2, \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc\u03c2 \u03c3\u03c4\u03c1\u03b1\u03c4\u03b7\u03b3\u03b9\u03ba\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03c5\u03c0\u03b9\u03ba\u03bf\u03af \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03bf\u03af \u03b1\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1\u03c2, \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03b5\u03bd\u03b1\u03bb\u03bb\u03b1\u03ba\u03c4\u03b9\u03ba\u03ce\u03bd \u03c4\u03c1\u03cc\u03c0\u03c9\u03bd \u03ba\u03b1\u03b9 \u03c0\u03b1\u03c1\u03cc\u03c7\u03c9\u03bd \u03c3\u03cd\u03bd\u03b4\u03b5\u03c3\u03b7\u03c2). \u03a6\u03c5\u03c3\u03b9\u03ba\u03cc\u03c2 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc\u03c2 \u03b4\u03b9\u03ba\u03c4\u03cd\u03bf\u03c5. \u0388\u03bb\u03b5\u03b3\u03c7\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03b2\u03b5\u03bb\u03c4\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd \u03b4\u03b9\u03ba\u03c4\u03cd\u03bf\u03c5. \u03a3\u03c5\u03b3\u03b3\u03c1\u03b1\u03c6\u03ae \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ae\u03c2 \u03c0\u03c1\u03cc\u03c4\u03b1\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b9\u03c7\u03b5\u03b9\u03c1\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03bf\u03cd \u03c3\u03c7\u03b5\u03b4\u03af\u03bf\u03c5.<\/li>\n<li><strong>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 <\/strong><strong>4:<\/strong> \u0395\u03b9\u03c3\u03b1\u03b3\u03c9\u03b3\u03ae \u03c3\u03c4\u03b9\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03af\u03b5\u03c2. \u0397 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ae \u03af\u03bd\u03b1 \u03c9\u03c2 \u03bc\u03ad\u03c3\u03bf \u03bc\u03b5\u03c4\u03ac\u03b4\u03bf\u03c3\u03b7\u03c2. \u0395\u03af\u03b4\u03b7 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03b9\u03bd\u03ce\u03bd. \u0393\u03c1\u03b1\u03bc\u03bc\u03b9\u03ba\u03ac \u03ba\u03b1\u03b9 \u03bc\u03b7 \u03b3\u03c1\u03b1\u03bc\u03bc\u03b9\u03ba\u03ac \u03c6\u03b1\u03b9\u03bd\u03cc\u03bc\u03b5\u03bd\u03b1 \u03c3\u03c4\u03b9\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03af\u03bd\u03b5\u03c2. \u039f\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b4\u03b9\u03b1\u03c4\u03ac\u03be\u03b5\u03b9\u03c2. \u039f\u03c0\u03c4\u03b9\u03ba\u03bf\u03af \u03c0\u03bf\u03bc\u03c0\u03bf\u03af, \u03b5\u03bd\u03b9\u03c3\u03c7\u03c5\u03c4\u03ad\u03c2, \u03c6\u03af\u03bb\u03c4\u03c1\u03b1, \u03c0\u03bf\u03bb\u03c5\u03c0\u03bb\u03ad\u03ba\u03c4\u03b5\u03c2 \u03ba\u03bb\u03c0. \u0391\u03c3\u03ba\u03ae\u03c3\u03b5\u03b9\u03c2.<\/li>\n<li><strong>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 5:<\/strong> \u03a3\u03c7\u03b5\u03b4\u03af\u03b1\u03c3\u03b7 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03b6\u03b5\u03cd\u03be\u03b5\u03c9\u03bd. \u039f\u03c0\u03c4\u03b9\u03ba\u03ac \u03b4\u03af\u03ba\u03c4\u03c5\u03b1. \u03a4\u03bf\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03b5\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd. \u03a0\u03bf\u03bb\u03c5\u03c0\u03bb\u03b5\u03be\u03af\u03b1 \u039c\u03ae\u03ba\u03bf\u03c5\u03c2 \u039a\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2 (Wavelength Division Multiplexing &#8211; WDM). \u0394\u03c1\u03bf\u03bc\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03ae \u03c0\u03c1\u03cc\u03c3\u03b2\u03b1\u03c3\u03b7 \u03c3\u03c4\u03b1 \u03b4\u03af\u03ba\u03c4\u03c5\u03b1 WDM. \u039c\u03b5\u03c4\u03b1\u03b3\u03c9\u03b3\u03ae \u03bc\u03ae\u03ba\u03bf\u03c5\u03c2 \u03ba\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2 (wavelength switching), \u03bc\u03b5\u03c4\u03b1\u03b3\u03c9\u03b3\u03ae \u03c0\u03b1\u03ba\u03ad\u03c4\u03bf\u03c5 (photonic packet switching) \u03ba\u03b1\u03b9 \u03bc\u03b5\u03c4\u03b1\u03b3\u03c9\u03b3\u03ae \u03c1\u03b9\u03c0\u03ae\u03c2 (optical burst switching). \u039c\u03b7\u03c4\u03c1\u03bf\u03c0\u03bf\u03bb\u03b9\u03c4\u03b9\u03ba\u03ac \u03bf\u03c0\u03c4\u03b9\u03ba\u03ac \u03b4\u03af\u03ba\u03c4\u03c5\u03b1. \u039f\u03c0\u03c4\u03b9\u03ba\u03ac \u03b4\u03af\u03ba\u03c4\u03c5\u03b1 \u03c0\u03c1\u03cc\u03c3\u03b2\u03b1\u03c3\u03b7\u03c2 (PONs). \u0391\u03c3\u03cd\u03c1\u03bc\u03b1\u03c4\u03b1 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ac \u03b4\u03af\u03ba\u03c4\u03c5\u03b1. \u0394\u03af\u03ba\u03c4\u03c5\u03b1 Fiber-to-the-x (x: \u039dode, Curb, Building, Home).<\/li>\n<li><strong>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 6:<\/strong> \u0394\u03ad\u03c3\u03bc\u03b5\u03c5\u03c3\u03b7 \u03c0\u03cc\u03c1\u03c9\u03bd, \u03b1\u03bd\u03ac\u03b8\u03b5\u03c3\u03b7 \u03bc\u03ae\u03ba\u03bf\u03c5\u03c2 \u03ba\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03c1\u03c9\u03c4\u03cc\u03ba\u03bf\u03bb\u03bb\u03b1 \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03ae\u03c2 \u03c0\u03c1\u03cc\u03c3\u03b2\u03b1\u03c3\u03b7\u03c2 \u03c3\u03b5 WDM \u03b4\u03af\u03ba\u03c4\u03c5\u03b1. \u039c\u03ad\u03c4\u03c1\u03b1 \u03b1\u03c0\u03bf\u03b4\u03bf\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03bc\u03b5\u03bb\u03ad\u03c4\u03b7 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7\u03c2. \u0391\u03c3\u03ba\u03ae\u03c3\u03b5\u03b9\u03c2.<\/li>\n<li><strong>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 <\/strong><strong>7:<\/strong> \u03a0\u03c1\u03bf\u03bf\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b5\u03be\u03ad\u03bb\u03b9\u03be\u03b7\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd. \u03a0\u03c1\u03bf\u03ba\u03bb\u03ae\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2.<\/li>\n<\/ul>\n<p><strong>\u039c\u03ad\u03c1\u03bf\u03c2 \u0399<\/strong><strong>I<\/strong><strong>: <\/strong><\/p>\n<ul>\n<li><strong>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 8:<\/strong> \u0395\u03b9\u03c3\u03b1\u03b3\u03c9\u03b3\u03ae \u03c3\u03b5 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u0399\u03bf\u03a4 \u03ba\u03b1\u03b9 \u03b7 \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03af\u03b1\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03bf\u03cd \u03bf\u03b9\u03ba\u03bf\u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03bf\u03c7\u03ae \u03bb\u03cd\u03c3\u03b5\u03c9\u03bd \u0399\u03bf\u03a4. \u03a0\u03b5\u03c1\u03b9\u03b3\u03c1\u03b1\u03c6\u03ae \u03c4\u03b7\u03c2 \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ae\u03c2 \u03b4\u03bf\u03bc\u03ae\u03c2 \u03c4\u03c9\u03bd \u03bb\u03cd\u03c3\u03b5\u03c9\u03bd (\u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03cc\u03c2, \u03b4\u03af\u03ba\u03c4\u03c5\u03bf \u03bc\u03b5\u03c4\u03ac\u03b4\u03bf\u03c3\u03b7\u03c2, \u03c0\u03bb\u03b1\u03c4\u03c6\u03cc\u03c1\u03bc\u03b5\u03c2, \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2). \u03a0\u03b1\u03c1\u03bf\u03c5\u03c3\u03af\u03b1\u03c3\u03b7 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03c9\u03bd \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ce\u03bd.<\/li>\n<li><strong>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 9:<\/strong> \u03a4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b5\u03c2 \u03bc\u03b5\u03c4\u03ac\u03b4\u03bf\u03c3\u03b7\u03c2 Low Power Wide Area (LPWA) \u03b3\u03b9\u03b1 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u0399\u03bf\u03a4. \u0395\u03bc\u03b2\u03ac\u03b8\u03c5\u03bd\u03c3\u03b7 \u03c3\u03b5 \u03b4\u03af\u03ba\u03c4\u03c5\u03b1 LoRa, Sigfox \u03ba\u03b1\u03b9 \u039d\u0392 \u0399\u03bf\u03a4.<\/li>\n<li><strong>\u0394\u03b9\u03ac\u03bb\u03b5\u03be\u03b7 10:<\/strong> \u03a0\u03b1\u03c1\u03bf\u03c5\u03c3\u03af\u03b1\u03c3\u03b7 \u03c0\u03b9\u03bb\u03bf\u03c4\u03b9\u03ba\u03ce\u03bd Smart Cities \u03c3\u03b5 \u03a7\u03b1\u03bb\u03ba\u03af\u03b4\u03b1 \u03ba\u03b1\u03b9 \u03a0\u03ac\u03c4\u03c1\u03b1.<\/li>\n<\/ul>\n<p><!--more--><\/p>\n<ul>\n<li>\u0394\u03af\u03ba\u03c4\u03c5\u03b1 \u03a5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03ce\u03bd, Andrew S. Tanenbaum and David J. Wetherall, 5\u03b7 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7, \u0395\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u039a\u03bb\u03b5\u03b9\u03b4\u03ac\u03c1\u03b9\u03b8\u03bc\u03bf\u03c2<\/li>\n<li>\u0394\u03af\u03ba\u03c4\u03c5\u03b1 \u03ba\u03b1\u03b9 \u0394\u03b9\u03b1\u03b4\u03af\u03ba\u03c4\u03c5\u03b1 \u03a5\u03c0\u03bf\u03bb\u03bf\u03b3\u03b9\u03c3\u03c4\u03ce\u03bd, Douglas E. Comer, 6\u03b7 \u03b1\u03bc\u03b5\u03c1\u03b9\u03ba\u03ac\u03bd\u03b9\u03ba\u03b7 \u03ad\u03ba\u03b4\u03bf\u03c3\u03b7, \u03b5\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u039a\u03bb\u03b5\u03b9\u03b4\u03ac\u03c1\u03b9\u03b8\u03bc\u03bf\u03c2<\/li>\n<li>\u03a3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u0395\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03b9\u03ce\u03bd \u03bc\u03b5 \u039f\u03c0\u03c4\u03b9\u03ba\u03ad\u03c2 \u038a\u03bd\u03b5\u03c2, Govind P. Agrawal, \u0395\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u03a4\u03b6\u03b9\u03cc\u03bb\u03b1, 2011<\/li>\n<li>\u0394\u03af\u03ba\u03c4\u03c5\u03b1 \u039f\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u0399\u03bd\u03ce\u03bd, Paul E. Green, \u0395\u03ba\u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 \u03a0\u03b1\u03c0\u03b1\u03c3\u03c9\u03c4\u03b7\u03c1\u03af\u03bf\u03c5, 1994<\/li>\n<li>Optical Communications Components and Systems, Jhurgen H. Franz and Virander K. Jain, CRC Press<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u03a3\u03c4\u03cc\u03c7\u03bf\u03c2 \u039c\u03ad\u03c1\u03bf\u03c2 \u0399: \u0395\u03be\u03bf\u03b9\u03ba\u03b5\u03af\u03c9\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03b9\u03c2 \u03b2\u03b1\u03c3\u03b9\u03ba\u03ad\u03c2 \u03ad\u03bd\u03bd\u03bf\u03b9\u03b5\u03c2 \u03c4\u03c9\u03bd \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd \u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03b9\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c4\u03c9\u03bd \u03c3\u03cd\u03b3\u03c7\u03c1\u03bf\u03bd\u03c9\u03bd \u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd. \u03a0\u03b1\u03c1\u03bf\u03c5\u03c3\u03af\u03b1\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b4\u03bf\u03bc\u03b9\u03ba\u03ce\u03bd \u03c3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af\u03c9\u03bd \u03c4\u03c9\u03bd \u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03c4\u03b7\u03bb\u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03b9\u03b1\u03ba\u03ce\u03bd \u03c3\u03c5\u03c3\u03c4\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03ba\u03b1\u03b9 \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd. \u039c\u03b5\u03bb\u03ad\u03c4\u03b7 \u03c4\u03c9\u03bd \u03b2\u03b1\u03c3\u03b9\u03ba\u03ce\u03bd \u03b1\u03c1\u03c7\u03b9\u03c4\u03b5\u03ba\u03c4\u03bf\u03bd\u03b9\u03ba\u03ce\u03bd \u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd \u03ba\u03bf\u03c1\u03bc\u03bf\u03cd \u03ba\u03b1\u03b9 \u03c0\u03c1\u03cc\u03c3\u03b2\u03b1\u03c3\u03b7\u03c2. \u03a0\u03b1\u03c1\u03bf\u03c5\u03c3\u03af\u03b1\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c3\u03cd\u03b3\u03c7\u03c1\u03bf\u03bd\u03c9\u03bd \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ce\u03bd \u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd. \u03a4\u03bf \u03bc\u03ac\u03b8\u03b7\u03bc\u03b1 \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03b4\u03b9\u03b1\u03bb\u03ad\u03be\u03b5\u03b9\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03b1\u03c1\u03bf\u03c5\u03c3\u03b9\u03ac\u03c3\u03b5\u03b9\u03c2 \u03c0\u03c1\u03bf\u03c3\u03bf\u03bc\u03bf\u03af\u03c9\u03c3\u03b7\u03c2 \u03bf\u03c0\u03c4\u03b9\u03ba\u03ce\u03bd \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd \u03c3\u03c4\u03bf \u03b5\u03c1\u03b3\u03b1\u03c3\u03c4\u03ae\u03c1\u03b9\u03bf. \u039c\u03ad\u03c1\u03bf\u03c2 \u0399\u0399: \u0397 [&hellip;]<\/p>\n","protected":false},"author":1,"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\/2516"}],"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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/wp-json\/wp\/v2\/comments?post=2516"}],"version-history":[{"count":18,"href":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/wp-json\/wp\/v2\/posts\/2516\/revisions"}],"predecessor-version":[{"id":4628,"href":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/wp-json\/wp\/v2\/posts\/2516\/revisions\/4628"}],"wp:attachment":[{"href":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/wp-json\/wp\/v2\/media?parent=2516"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/wp-json\/wp\/v2\/categories?post=2516"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/masters.ds.unipi.gr\/technoeconomic\/wp-json\/wp\/v2\/tags?post=2516"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}