Essays about: "simulation matlab channel thesis"

Showing result 31 - 35 of 42 essays containing the words simulation matlab channel thesis.

  1. 31. Performance Analysis of Adaptive Algorithms based on different parameters Implemented for Acoustic Echo Cancellation in Speech Signals

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Swathi Kotte; [2011]
    Keywords : least mean square LMS Algorithm; Leaky Least mean square LLMS Algorithm; Normalized Least Mean Square NLMS Algorithm and Recursive Least Square RLS Algorithm ; additive white Gaussian noise ; Return Loss Enhancement ERLE ; signal to noise ratio;

    Abstract : Echo cancellation in voice communication is a process of removing the echo to improve the clarity, quality of the voice signals by suppressing the silence signal which prevents echoes during transmission through networks. There are two types of echo in voice communication: Hybrid echo cancellation and Acoustic echo cancellation. READ MORE

  3. 32. Digital Techniques for Compensation of Radio Frequency Impairments in Mobile Communication Terminals

    University essay from Elektroniska komponenter

    Author : Sudarshan Gandla; [2011]
    Keywords : ;

    Abstract : The 3G and 4G systems make use of spectrum efficient modulation techniques which has variable amplitude. The variable amplitude methods usually use carrier‘s amplitude and phase to carry the message signal. READ MORE

  4. 33. Analysis of OSTBC in Cooperative Cognitive Radio Networks using 2-hop DF Relaying Protocol

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Muhammad Mustafa Tahseen; MatiUllah Khan; Farhan Ullah; [2011]
    Keywords : Cognitive Radio; Cooperative Communication; Alamouti STBC; OSTBC; Rayleigh Fading; Energy Detector; DF Relay; Maximum Likelihood; MRC;

    Abstract : To achieve cooperative diversity in cognitive radio network, Decode and Forward (DF) protocol is implemented at Cognitive Radios (CRs) using Orthogonal Space Time Block Coding (OSTBC). The 2-hop communication between source and destination is completed with the help of Cognitive Relays (CRs) using Multiple Input Multiple Output (MIMO) technology within the network. READ MORE

  5. 34. Modeling of DC-OFDM UWB physical layer in Matlab and design of demapping module with high diversity gain

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

    Author : Wenyan Su; [2011]
    Keywords : ;

    Abstract : Due to the development of semiconductor and digital communication technology, amounts of wireless communication technology have been presented recently. Among those techniques, Ultra Wide Band (UWB) technology is an outstanding short distance wireless communication technology. READ MORE

  6. 35. Implementation of CMMB System using Software Defined Radio (SDR) Platform

    University essay from Datorteknik

    Author : Haohao Gu; He Zhang; [2010]
    Keywords : CMMB; OFDM; SDR; wireless; digital broadcasting;

    Abstract : CMMB (China Multimedia Mobile Broadingcasting) is a wireless broadcastingchannel standard for low bandwidth, low cost hand-held digital TV is adopted byall continental Chinese government TV broadcasting companies and some HongKong private TV broadcasting companies. The business potential is high, yet thefuture is hard to predict because it might be replaced by GB200600 or DTMB. READ MORE