THMMY.gr

Το Ελληνικό Τμήμα του IEEE Communications Society και το Φοιτητικό Παράρτημα ΙΕΕΕ του Αριστοτελείου Πανεπιστημίου Θεσσαλονίκης με χαρά σας προσκαλεί στη διάλεξη του Dr. George Chrisikos, Qualcomm Inc. USA, που θα λάβει χώρα στην Αίθουσα Γενικών Συνελεύσεων της Πολυτεχνικής Σχολής του ΑΠΘ (Ισόγειο κτιρίου Δ), στις 18/02/2013 και ώρα 13.00.

Η διάλεξη αφορά τις νέες ερευνητικές τάσεις αλλά και μεθόδους βελτιστοποίησης πάνω σε ζητήματα ετερογενών δικτύων νέας γενιάς. Το θέμα αυτό παρουσιάζει ιδιαίτερο ενδιαφέρον, καθώς τα μελλοντικά ασύρματα δίκτυα θα υφίστανται μεγάλη συσσώρευση/μπλοκάρισμα κατά τη διακίνηση της πληροφορίας, η οποία θα οφείλεται στην αυξημένη χρήση εφαρμογών, που διαχειρίζονται μεγάλο όγκο δεδομένων.

Μια προτεινόμενη λύση στο παραπάνω πρόβλημα είναι η υιοθέτηση τεχνολογίας ετερογενούς RF πρόσβασης, καθώς και εφαρμογή μεθόδων πολλαπλών λήψεων.

Ο Dr. George Chrisikos εργάζεται στην Qualcomm Inc. των ΗΠΑ και είναι υπεύθυνος για την έρευνα, σχεδίαση και ανάπτυξη τηλεπικοινωνιακών συστημάτων και αλγορίθμων για ασύρματες και δορυφορικές επικοινωνίες.

Στο συνημμένο θα βρείτε το abstract της διάλεξης, καθώς και ένα σύντομο βιογραφικό για τον ομιλητή.

Σας περιμένουμε όλους!

(https://fbcdn-sphotos-b-a.akamaihd.net/hphotos-ak-ash4/485239_10200580620461509_1046295121_n.jpg)

Qualcomm Incorporated is an American global semiconductor company that designs, manufactures and markets digital wireless telecommunications products and services. Headquartered in San Diego, CA, USA, the company has 157 worldwide locations. The parent company is Qualcomm Incorporated (Qualcomm), which includes the Qualcomm Technology Licensing Division (QTL). Qualcomm's wholly owned subsidiary, Qualcomm Technologies, Inc. (QTI), operates substantially all of Qualcomm's R&D activities, as well as its product and services businesses, including its semiconductor business, Qualcomm CDMA Technologies.

Qualcomm was founded in 1985 by MIT alumnus and UC San Diego professor Irwin Jacobs, MIT and USC alumnus Andrew Viterbi, Harvey White, Adelia Coffman, Andrew Cohen, Klein Gilhousen, and Franklin Antonio. Jacobs and Viterbi had previously founded Linkabit. Qualcomm's first products and services included the OmniTRACS satellite locating and messaging service, used by long-haul trucking companies, developed from a product called Omninet owned by Parviz Nazarian and Neil Kadisha, and specialized integrated circuits for digital radio communications such as a Viterbi decoder.
In 1990, Qualcomm began the design of the first CDMA-based cellular base station, based upon calculations derived from the CDMA-based OmniTRACS satellite system. This work began as a study contract from AirTouch which was facing a shortage of cellular capacity in Los Angeles. Two years later Qualcomm began to manufacture CDMA cell phones, base stations, and chips. The initial base stations were not reliable and the technology was licensed wholly to Nortel in return for their work in improving the base station switching. The first CDMA technology was standardized as IS-95. Qualcomm has since helped to establish the CDMA2000, WCDMA and LTE cellular standards.
In 1997, Qualcomm paid $18 million for the naming rights to the Jack Murphy Stadium in San Diego, renaming it to Qualcomm Stadium. The naming rights will belong to Qualcomm until 2017.[2]
In 1999, Qualcomm sold its base station business to Ericsson, and later, sold its cell phone manufacturing business to Kyocera. The company was now focused on developing and licensing wireless technologies and selling ASICs that implement them.
In 2011, Qualcomm announced that Steve Mollenkopf has been promoted to president and chief operating officer of the company, effective November 12.[3]
CFO Bill Keitel will retire and be replaced by Applied Materials CFO George Davis on March 11, 2013.[4]


http://www.qualcomm.com/ (http://www.qualcomm.com/)

Products

*Tracking devices - OmniTRACS is a two-way satellite communications and geolocation trailer tracking technology designed for the over-the-road transport market. As of April 2012, approximately 1.5 million units have been shipped to businesses in 39 countries on 4 continents.
*Semiconductors - Qualcomm designs various ARM architecture CDMA and UMTS modem chipsets designated Mobile Station Modem (MSM), baseband radio processors, and power processor chips. These chipsets are sold to mobile phone manufacturers such as Kyocera, HTC Corporation, Motorola, Sharp, Sanyo, LG, Nokia and Samsung for integration into CDMA and UMTS cell phones. Although a "fabless" semiconductor company, meaning Qualcomm does not engage in the actual manufacturing process, the chips the firm has designed are powering a significant number of handsets and devices world wide, both in CDMA and UMTS markets. As of summer of 2007, Qualcomm is among the top-ten semiconductor firms, after Intel, Texas Instruments, Samsung, and a few others.
*Satellite phones - Qualcomm manufactures some of the handsets used on the Globalstar network.
*MediaFLO - Qualcomm is the inventor of the MediaFLO system, based upon OFDM, which transmits 12-15 television channels within 6 MHz of spectrum. Qualcomm has standardized the lower layers of this design in TIA, and manufactures chips and software to add this television capability to cellphones.
*QChat - QChat is a cellular/data 2-way push-to-talk voice communications program. Nextel's original push-to-talk technology operates on the iDen network, but Qualcomm's Qchat push-to-talk operates on the EV-DO Revision A mobile broadband network. Sprint-Nextel's first Qchat phones were released in June 2008. Both iDen and Qchat handsets are sold under the Nextel brand. On November 29, 2009 Sprint issued a statement to PhoneNews.com that there are no new QChat handsets on the product development roadmap, but it will continue supporting its existing QChat subscribers.
*Qualcomm Gobi - Qualcomm Gobi is a mobile broadband chipset used mainly for cellular data networking and it is also now used in a few enterprise smart phones (e.g. Motorola ES400). It currently is a 3G technology capable up to HSPA on GSM and EV-DO rev.A on CDMA carriers. The Gobi chipset is a microprocessor that can load a specific carrier image so that the device appears to be specifically designed for that carrier's network. Since GSM and CDMA are quite different, and since Gobi devices can switch between them both using the same silicon, their solution is considered to be innovative. Gobi Technology is best suited for large enterprise customers where a single mobile operator cannot serve all of their wireless modem needs since there is not one carrier that was provide the same level of service in all the places they need that service. The Gobi solution allows the IT department to roll out a single module on their laptop builds which can be configured to behave exactly like a device that is locked to the carrier that they want to use in that area. In the United States exactly the same hardware can be used on the CDMA network or the GSM network of their choice. For GSM users that travel out of the United States the Gobi solution can be used to avoid international roaming charges by switching the SIM and the device's carrier image to a local provider instead of incurring the roaming charges. In both scenarios the customer must have different wireless accounts with each provider they wish to use natively. It typically takes 20 seconds for the device to load the carrier image into NVRAM and reset and come back online. Gobi 3000 is the next hardware revision of the Gobi platform and it natively supports HSPA+. The model for Gobi 3000 is different. It is a reference design the OEMs can licence and produce their own Gobi 3000 compliant modules with their own extensions. Qualcomm does not sell any Gobi 3000 silicon. The reference design allows the same boilerplate hardware and software components for the basis of OEM chips which allow the OEMs to focus on innovations on the mobile broadband platform rather than getting bogged down with low-level RF implementations. Future Gobi platforms will support LTE natively. Currently, some Gobi 3000 modules support LTE through their own extensions.
*Mirasol displays - mirasol displays are the world's first and only reflective, bistable display based on IMOD technology. Qualcomm's mirasol displays use ambient light as their source of illumination and consume almost no power when the image is unchanged. This results in a very low power display solution that is visible even in direct sunlight.
*HALO - A standard for Wirelessly charging vehicles with relatively high efficiency[24] using Resonant inductive coupling.[25] created from more than 10 years of research at Auckland University

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