Reputation Auction Games for Cooperative Communications with Beamforming Technology

  • 莊 彥宣

Student thesis: Master's Thesis


Cooperative communication is a simple but effective scheme that can reduce outage probability and power consumption for next-generation green wireless networks However in cooperative networks the assumption that all users of a wireless network would be willing to help transmit is not realistic Based on this our laboratory’s previous work proposed a reputation auction game to stimulate users to perform cooperative transmission via the concept of indirect reciprocity However the simulation and analysis results indicated that the performance of multiple-relay cooperation scheme was not better than single-relay scheme neither in outage probability or energy consumption Accordingly we proposed a cooperation scheme by exploiting virtual beamforming to improve the performance in multiple-relay transmission scheme Virtual beamforming is a multiple-input single-output (MISO) system which utilizes multiple relays to form a beam It became feasible because of the progress of channel estimation technology Based on virtual beamforming a simple relay selection algorithm was designed to allocate reputation and power To achieve higher performance two adaptive and dynamic power algorithms were also proposed Finally we compared our auction game with previous work via computer simulation The simulation results demonstrated that the proposed scheme outperforms previous work The results have also shown that cooperative communication networks can benefit from virtual beamforming technology and our auction game is both reliable and energy saving
Date of Award2016 Aug 30
Original languageEnglish
SupervisorHui-Tang Lin (Supervisor)

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