BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/Denver BEGIN:DAYLIGHT DTSTART:20230312T030000 TZOFFSETFROM:-0700 TZOFFSETTO:-0600 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:MDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20231105T010000 TZOFFSETFROM:-0600 TZOFFSETTO:-0700 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:MST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20231016T044118Z UID:E80CF5B2-DB15-4A03-84FE-86F9D924BB84 DTSTART;TZID=America/Denver:20231012T183000 DTEND;TZID=America/Denver:20231012T200000 DESCRIPTION:In addition to machine learning (ML) algorithms\, reconfigurabl e intelligent surfaces (RIS) are considered the key candidates for 6th gen eration mobile communication systems.\n\nBoth technologies introduce a par adigm shift from traditional and contemporary wireless communication metho ds.\n\nTypically\, the wireless channel is considered passive and not modi fiable by the network operator\; hence\, the transmitter and receiver are optimized to overcome fixed impairments of the channel model.\n\nHowever\, with the introduction of RIS\, the channel becomes intelligent and contro llable to a certain degree.\n\nFor example\, a mmWave communications syste m would suffer severely from absorption in the line-of-sight propagation p ath. Using a RIS for reflecting or directing the electromagnetic wave\, th e communications link can be properly restored.\n\nSimilarly\, ML could be used to learn the most effective configuration for particular channel imp airments. Remote sensing applications are another area where RIS can assis t in enhancing performance.\n\nA RIS is a two-dimensional surface of discr ete\, individually tunable but passive elements (unit cells)\, typically c onsisting of varactors\, PIN diodes\, or MEMS. Reconfigurable metamaterial s and meta-surfaces are another approach to implementing RIS.\n\nBy carefu lly designing and optimizing the tuning of the elements\, various electrom agnetic (EM) wave transformation objectives can be met.\n\nSome examples o f achievable EM functions are polarization\, reflection\, refraction\, foc using\, collimation\, modulation\, absorption\, or a combination of these. Furthermore\, a RIS can be considered a new type of network node employin g structures with various considerations such as form factor\, design\, an d integration.\n\nThe RIS has low implementation costs and energy consumpt ion\; hence\, combining RIS with ML is creating enormous innovation opport unities that will progressively impact the evolution of wireless system ar chitecture\, access technologies\, and networking protocols.\n\nSpeaker(s) : Anders Buvarp\, \n\nVirtual: https://events.vtools.ieee.org/m/374843 LOCATION:Virtual: https://events.vtools.ieee.org/m/374843 ORGANIZER:genef@ieee.org SEQUENCE:11 SUMMARY:October 2023 PPCS Meeting - Introduction to Reconfigurable Intellig ent Surfaces - with Anders M. Buvarp URL;VALUE=URI:https://events.vtools.ieee.org/m/374843 X-ALT-DESC:Description: <br /><p>In addition to machine learning<strong> (M L)</strong> algorithms\, <strong>reconfigurable intelligent surfaces </str ong>(RIS) are considered the key candidates for <strong>6th generation</st rong> mobile communication systems.</p>\n<p>Both technologies introduce a <strong>paradigm shift</strong> from traditional and contemporary wireless communication methods.</p>\n<p>Typically\, the <strong>wireless channel i s considered passive and not modifiable by the network operator\;</strong> hence\, the transmitter and receiver are optimized to overcome fixed impa irments of the channel model.</p>\n<p>However\, with the introduction of R IS\, <strong>the channel becomes intelligent and controllable to a certain degree</strong>.</p>\n<p><strong>For example</strong>\, a mmWave communic ations system would suffer severely from absorption in the line-of-sight p ropagation path. Using a RIS for reflecting or directing the electromagnet ic wave\, the communications link can be properly restored.</p>\n<p>Simila rly\, ML could be used to learn the most effective configuration for parti cular channel impairments. Remote sensing applications are another area wh ere RIS can assist in enhancing performance.</p>\n<p><strong>A RIS is a tw o-dimensional surface of discrete\, individually tunable but passive eleme nts (unit cells)\,</strong> typically consisting of varactors\, PIN diodes \, or MEMS. Reconfigurable metamaterials and meta-surfaces are another app roach to implementing RIS.</p>\n<p>By carefully designing and optimizing t he tuning of the elements\, various electromagnetic (EM) wave transformati on objectives can be met.</p>\n<p>Some examples of <strong>achievable EM f unctions are polarization\, reflection\, refraction\, focusing\, collimati on\, modulation\, absorption\, or a combination of these.</strong> Further more\, a RIS can be considered a new type of network node employing struct ures with various considerations such as form factor\, design\, and integr ation.</p>\n<p><strong>The RIS has low implementation costs and energy con sumption</strong>\; hence\, combining RIS with ML is creating enormous inn ovation opportunities that will progressively impact the evolution of wire less system architecture\, access technologies\, and networking protocols. </p> END:VEVENT END:VCALENDAR