Essays about: "wireless 2012"

Showing result 11 - 15 of 128 essays containing the words wireless 2012.

  1. 11. Spectrum Sensing of acoustic OFDM signals

    University essay from Kommunikationssystem; Tekniska högskolan

    Author : Sivakesava Reddy Malkireddy; [2012]
    Keywords : OFDM; Autocorrelation; Spectrum Sensing; Cognitive radio; GLRT;

    Abstract : OFDM is a fast growing technology in the area of wireless communication due to its numerous advantages and applications. The current and future technologies in the area of wireless communications like WiMAX, WiFi, LTE, MBWA and DVB-T uses the OFDM signals. READ MORE

  3. 12. Simulation of wireless communications in underground tunnels

    University essay from Högskolan i Gävle/Avdelningen för elektronik, matematik och naturvetenskap

    Author : Shabai He; [2012]
    Keywords : time dispersion channels; intersymbol interference; adaptive equalization;

    Abstract : The new released 4G standard wireless communication reminds us that higher transmission data rate and more reliable service are required urgently. However, to fulfill the demand can face problems in a complex environment like mines. READ MORE

  4. 13. Discrete Cosine Transform for Pre-coded EGPRS

    University essay from KTH/Signalbehandling

    Author : Chengzhou Jin; [2012]
    Keywords : ;

    Abstract : Due to the rapid growth of wireless multimedia service, new features such as improved spectral efficiency, latency and increased peak throughput are standardized in the current GSM/EDGE system. Higher order modulations and symbol rates are defined in Enhanced General Packet Radio Service phase 2 (EGPRS2) to achieve better throughput. READ MORE

  5. 14. Security Services for Mobile Applications

    University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Author : Majid Mumtaz; [2012]
    Keywords : Mobile Applications Security; Authentication; microSD; Secure Element;

    Abstract : In today's era of technology, information can revolve the whole world within seconds via Internet. Devices such as smartphones, tablets and smart applications running on them enable users to access information anytime and anywhere over the air network. READ MORE

  6. 15. Space Time Coding For Wireless Communication

    University essay from Institutionen för datavetenskap, fysik och matematik, DFM

    Author : Om Nath Acharya; Sabin Upadhyaya; [2012]
    Keywords : MIMO; STC; STBC; STTC; Space Time Code; Space Time Block Codes; Space Time Trellis Codes; Alamouti Codes; Information theory; MIMO Capacity; Diversity;

    Abstract : As the demand of high data rate is increasing, a lot of research is being conducted in the field of wireless communication. A well-known channel coding technique called Space-Time Coding has been implemented in the wireless Communication systems using multiple antennas to ensure the high speed communication as well as reliability by exploiting limited spectrum and maintaining the power. READ MORE