Essays about: "Keying"

Showing result 21 - 25 of 40 essays containing the word Keying.

1. 21. Error Rate Performance of Multi-Hop Communication Systems Over Nakagami-m Fading Channel

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

   Author : Hassan Sajjad; Muhammad Jamil; [2012]
   Keywords : Signal Processing; Fading Channel; Multi-hop;

   Abstract : This work examines error rate performance of Multi-Hop communication systems, employing Single Input Single Output (SISO) transmissions over Nakagami-m fading channel. Mobile multi-hop relaying (MMR) system has been adopted in several Broadband Wireless Access Networks (BWAN) as a cost-effective means of extending the coverage and improving the capacity of these wireless networks. READ MORE

3. 22. Simulation of Traveling Wave Electroabsorption Modulators for Phase Modulation

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

   Author : Prasanna Ramaswamy; [2012]
   Keywords : ;

   Abstract : Electro-Absorption Modulators (EAMs) have been instrumental in achieving ultrafast modulation speeds of over 100 Gb/s, and in particular, segmented Travelling-Wave (TWEAMs) designs offer excellent compatibility with standardmicrowave technology due to their characteristic impedance being closer to 50. The TWEAM device fabricated as part of the European Project HECTO, has been succesful is field trials at 112 Gb/s using On-Off Keying (OOK). READ MORE

4. 23. Modeling Basic Physical Links in Acumen

   University essay from Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE)

   Author : Muzeyen Hassen Esmael; [2012]
   Keywords : Acumen; Modulation and Demodulation; Simulation; RC Lowpass filter;

   Abstract : Simulation is the process of computing a behavior determined by a given model of a system of interest.  Modeling is the process of creating a model that formally describes a given class of system.  Modeling and simulation can be used to quickly and cheaply study and understand new technologies. READ MORE

5. 24. DANE with OpenSSL : PKIX certificate authentication throughDNS using OpenSSL

   University essay from Institutionen för informationsteknologi

   Author : Mathias Samuelsson; [2012]
   Keywords : ;

   Abstract : Background X.509 is an ITU standard for a public key infrastructure (PKI), which specifies, among other things, formats for public key certificates, certificate requests, certificate revocation lists and certification path validation algorithm. The X.509 standard was primarily designed to support the X. READ MORE

6. 25. Impact of non-idealities and integrator leakage on the performance of IR-UWB receiver front end

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

   Author : Tharakaramu Navineni; [2012]
   Keywords : IR-UWB; non-coherent energy detector; system modeling; non-idealities; integrator leakage; BER; Matlab;

   Abstract : UWB has the huge potential to impact the present communication systems due to its enormous available bandwidth, range/data rate trade-off, and potential for very low cost operation. According to FCC, Ultra Wideband (UWB) radio signal defined as a signal that occupies a bandwidth of 500 MHz or fractional bandwidth larger than 20% with strict limits on its power spectral density to -41. READ MORE