Graduate Profiles 2012 - National University of Science and ...
Graduate Profiles 2012 - National University of Science and ...
Graduate Profiles 2012 - National University of Science and ...
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COMMUNICATION LINK FOR UAVModern communication systems are striving to achieve maximum possible capacity <strong>of</strong>the channel that comes with robustness. Due to the recent development in technology,mobile platforms are gaining preferences as communication (Audio, Video or Data)devices. Recent trend to use mobile platforms as communication devices imposesupplementary limitation in terms <strong>of</strong> battery life <strong>and</strong> quality <strong>of</strong> communication. Theprimary requirement for video transmission from a mobile platform is that it should betransmitted accurately with minimum use <strong>of</strong> battery life to prolong the time <strong>of</strong> operation.In order to fulfill the requirement <strong>of</strong> prolonged battery life, computationally less complexencoder is desired which will lower the power requirement <strong>of</strong> the processing unit. In thisregards, the paradigm <strong>of</strong> distributed video coding is proposed. It promises to provide thecapability to shift a portion <strong>of</strong> complexity from encoder to decoder which, otherwisetends to impose upper limitation on the flight time <strong>of</strong> the probe. The proposed scheme isalso beneficial in terms <strong>of</strong> decoding error robustness, providing improved immunity todrift errors between encoder <strong>and</strong> decoder as compared to st<strong>and</strong>ardized videocompression techniques. Robustness is ensured by the NLOS capability <strong>of</strong> OFDMimplementation which also promises adequate b<strong>and</strong>width for video transmission.The intended objective <strong>of</strong> our project is to develop a robust <strong>and</strong> efficient videocompression <strong>and</strong> transmission module for mobile platforms. This link should include acompression algorithm that promises a computationally less expensive procedure <strong>and</strong>the complete system to fulfill our requirement <strong>of</strong> data rate <strong>and</strong> robustness.Our design is to implement motion estimation on decoder side instead <strong>of</strong> encoder side.This will give an advantage <strong>of</strong> reduce use <strong>of</strong> resources on UAV thus saving powerrequirement <strong>and</strong> reducing complexity on UAV end. Our design implements PRISM(Power-efficient, Robust, hIgh-compression, Syndrome based Multimedia coding)architecture proposed in 2002 <strong>and</strong> redefined in 2007.Syndicate Members: Danish IlyasMuhammad Faisal InayatHafiz Muhammad MuneebUsman Saeed RajaSupervisor:Asst Pr<strong>of</strong> Raja Iqbal4
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