TY  - SER
AU  - Jayasinghe,Laddu Keeth Saliya
AU  - Rajatheva,R.M.A.P
AU  - Ahmed,Kazi Mohiuddin
AU  - Poompat Saengudomlert,
ED  - The Government of Finland, 
TI  - Analysis of cooperative relay communication with cognitive radio, physical layer network coding and MIMO
T2  - Thesis
PY  - 2010///
CY  - Pathum Thani, Thailand
PB  - Asian Institute of Technology
KW  - Cognitive radio networks
KW  - MIMO systems
KW  - Wireless communication systems
N1  - A thesis submitted in partial fulfillment of the requirements for the  degree of Master of Engineering in Telecommunications, School of Engineering and Technology; Thesis (M.Eng.) - Asian Institute of Technology, 2010
N2  - Here, 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
UR  - http://203.159.5.9/ait-thesis/detail.php?q=B04074 
ER  -