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035 _a.b12090384
099 9 _aAIT Thesis no.TC-10-04
100 1 _aJayasinghe, Laddu Keeth Saliya
245 1 0 _aAnalysis of cooperative relay communication with cognitive radio, physical layer network coding and MIMO
260 _aPathum Thani, Thailand :
_bAsian Institute of Technology,
_c2010
300 _a68 leaves :
_bill.
490 1 _aThesis ;
_vno. TC-10-04
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Telecommunications, School of Engineering and Technology
502 _aThesis (M.Eng.) - Asian Institute of Technology, 2010
520 _aHere, we analyze the relay networks with cognitive radio (CR), physical layer networkcoding (PNC) and multiple-input multiple-output (MIMO) communications.First, we investigate the optimal power allocation of relaynodes which are usedin the secondary user (SU) communication of a CR network. Thepower allocationproblem solves for regenerative, non-regenerative, N series and diversity relay modelsunder Rayleigh fading. The outage probability of SU communication is limited by theinterference power threshold (IPT) constraints of PUs and is affected significantly bythe IPT levels of PUs.An optimal power allocation problem is developed with IPT constraints to max-imize the sum-rate of the two-way communication. Similar behavior is observed as inthe one way transmission.Finally, we investigate OSTBC MIMO transmission with non-coherent amplify-and-forward relaying when the source-relay and relay-destination channels undergoRayleigh and Rician fading respectively. We derive expressions for the moment gener-ating function (MGF), moments, PDF of the SNR at the destination. We analyze thesystem performance by deriving new analytical expressionsfor the BER and amount offading. These performance metrics reveal that strong line of sight component betweenrelay-destination link always limit the performance promised by MIMO scattering en-vironment only when both nodes have multiple antennas.
650 0 _aCognitive radio networks
650 0 _aMIMO systems
650 0 _aWireless communication systems
700 1 _aRajatheva, R.M.A.P,
_eChairperson
700 1 _aAhmed, Kazi Mohiuddin,
_eExamination Committee
700 0 _aPoompat Saengudomlert,
_eExamination Committee
710 2 _aThe Government of Finland,
_eScholarship donor
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. TC-10-04
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B04074
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_tAbstract-AIT Thesis no.TC-10-04
_vn
945 _lmnait
945 _lmnait
945 _lmnarc
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