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Energy-efficient communication has attracted more and more attention due to the large energy consumption in wireless communication network. Relay-assisted OFDM cellular network is one of the most effective frameworks in the IMT-Advanced system to improve the spectral efficiency. This paper investigates the energy-efficient resource allocation for multiuser two-way multi-relay OFDM network. We formulate...
This paper proposes an optimal scheme to balance the trade-off between signaling load and radio resource utilization in UMTS networks. To efficiently use limited radio resource, 3GPP introduces RRC state transition mechanism in UMTS. This mechanism uses a timer called TDCH to determine when mobile phone should release its connection to network. To examine the impact of such a timer on radio resource...
This paper determines the cost/revenue performance of a mobile communication system in an IMT-Advanced scenario with integrated Common Radio Resource Management (iCRRM). The iCRRM performs classic CRRM functionalities jointly with Spectrum Aggregation (SA), being able to switch users between non-contiguous frequency bands. The SA scheduling is obtained with an optimized General Multi-Band Scheduling...
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