Essays about: "DVB"

Showing result 1 - 5 of 19 essays containing the word DVB.

  1. 1. Analysis of new and alternative encryption algorithms and scrambling methods for digital-tv and implementation of a new scrambling algorithm (AES128) on FPGA.

    University essay from Linköpings universitet/Institutionen för systemteknikLinköpings universitet/Tekniska högskolan

    Author : Gustaf Bengtz; [2014]
    Keywords : DVB; scrambling; CISSA; cipher; CSA; CSA3; AES128; FPGA;

    Abstract : This report adresses why the currently used scrambling standard CSA needs a replacement. Proposed replacements to CSA are analyzed to some extent, and an alternative replacement (AES128) is analyzed.One alternative being the CSA3, and the other being the CISSA algorithm. Both of the proposed algorithms use the AES algorithm as a base. READ MORE

  2. 2. IP Multicasting over DVB-T/T2/H and eMBMS using PARPS : Effect of the number of transmitters

    University essay from Mittuniversitetet/Avdelningen för informations- och kommunikationssystem

    Author : Ranjith Reddy Voladri; [2013]
    Keywords : Unicasting; Broadcasting; Multicasting; DVB-T T2; DVB-H; eMBMS; SFN; MFN; DSFN; PARPS; SSE; MSSE; PARPS; LTE; Coverage probability; Zip-f law; Radio resource management.;

    Abstract : With the advancement in the current wireless technology standards such as terrestrial digital video broadcasting systems (DVB-T, DVB-T2, and DVB-H) and the massive usage of the Internet over mobile devices, streaming of television channels in smart phones has become a necessary advancement for mobile users. As, UMTS dominating the entire mobile market globally and with the evolution of LTE, several mobile operators are working on an MBMS framework which will help to launch mobile TV services on respective operators. READ MORE

  3. 3. Extraction of radio frequency quality metric from digital video broadcast streams by cable using software defined radio

    University essay from Linköpings universitet/KommunikationssystemLinköpings universitet/Tekniska högskolan

    Author : Viktor Eriksson; [2013]
    Keywords : QAM; DVB-C; MER; BER; Gardner; Phase locked loop; Mueller Muller; RRC-filter; Carrier recovery; Timing Recovery; Matched filtering;

    Abstract : The purpose of this master thesis was to investigate how effiecient the extractionof radiofrequency quality metrics from digital video broadcast (DVB) streamscan become using software defined radio. Software defined radio (SDR) is a fairlynew technology that offers you the possibility of very flexible receivers and transmitters where it is possible to upgrade the modulation and demodulation overtime. READ MORE

  4. 4. Implementation of 64-point FFTs as a building block for OFDM-based standards with respect to different criteria

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

    Author : Sarojanarayanamurthy Rajavari Krishnaih Lokanadhan; [2013]
    Keywords : ;

    Abstract : Abstract This master thesis implements a critical block: Fast Fourier Transform (FFT)/Inverse Fast Fourier Transform (IFFT) for standards using Orthogonal Frequency Division Multiplexing (OFDM). They are used in OFDM systems for modulating / demodulating subcarriers. READ MORE

  5. 5. Spectrum Sensing of acoustic OFDM signals

    University essay from Linköpings universitet/Linköpings universitet/KommunikationssystemTekniska 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