Essays about: "DPSK"

Found 2 essays containing the word DPSK.

1. 1. Spectrum Optimization in Cognitive Radio Networks using Genetic Algorithms

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Adnan Azam; Taimoor Siddique; [2010]
   Keywords : EM; FCC; CR; QoS; GA; SDR; EC; GP; DSP; FPGA; BER; RF; FM; BPSK; QPSK; GMSK; 16 QAM; DPSK; MSK; OFDM; OOK; GW; FP; ABS; AWS;

   Abstract : The rapid revolution in wireless communication in past years has increased the demand of radio spectrum to fulfill quality of service (QoS) requirements of wireless applications, leading to spectrum overcrowding. To solve the spectrum overcrowding problem, cognitive radio (CR) has emerged as a leading technology because it can intelligently sense an unused spectrum without creating any harm to authorized users. READ MORE

3. 2. DPSK modulation format for optical communication using FBG demodulator

   University essay from Institutionen för teknik och naturvetenskap

   Author : Fredrik Jacobsson; [2004]
   Keywords : Electronics; DPSK; Differential phase shift keying; PSK; FBG; Fiber Bragg Grating; MZI; Mach- Zehnder; optical communication; optical signal; WDM; Wavelength division multiplexing; TU e; Eindhoven; Holland; electro-optical communication; optisk kommunikation; elektrooptisk kommunikation; Elektronik;

   Abstract : The task of the project was to evaluate a differential phase shift keying demodulation technique by replacing a Mach-Zehnder interferometer receiver with an optical filter (Fiber Bragg Grating). Computer simulations were made with single optical transmission, multi channel systems and transmission with combined angle/intensity modulated optical signals. READ MORE