Sökning: "kooperativa spektrum avkänning"

Hittade 2 uppsatser innehållade orden kooperativa spektrum avkänning.

1. 1. Minding the spectrum gaps : First steps toward developing a distributed white space sensor grid for cognitive radios

   Master-uppsats, KTH/Radio Systems Laboratory (RS Lab)

   Författare :Javier Lara Peinado; [2013]
   Nyckelord :cognitive radio; cooperative spectrum sensing; energy detector; kognitiv radio; kooperativa spektrum avkänning; energi detektor;

   Sammanfattning : The idea that the radio spectrum is growing ever more scarce has become commonplace, and is being reinforced by the recent bidding wars among telecom operators. New wireless applications tend to be deployed in the relatively narrow unlicensed frequency bands, worsening the problem of interference for all users. LÄS MER

3. 2. PERFORMANCE ANALYSIS OF HYBRID DECODE-AMPLIFY FORWARD RELAYING PROTOCOLS IN COGNITIVE NETWORKS

   Master-uppsats, Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Författare :Awais Salman Qazi; Muhammad Shoaib; Muhammad Shahan Saleem; [2012]
   Nyckelord :MIMOs; PU; SU; CRs; CC; Maximum Likelihood estimation ;

   Sammanfattning : Nowadays, the world has observed a tremendous increase in the demand of radio spectrum in wireless communication. Services like broadband internet, telecommunication, videoconferencing, mobile IP, online multimedia gaming and other applications have been deployed using wireless services. LÄS MER