شماره ركورد كنفرانس :
3926
عنوان مقاله :
Two-Way MIMO Relay Beamforming Scheme for Sum-Rate Maximization Approach Based on Second-Order Statistics
پديدآورندگان :
Rezvani Seyed Mohsen s.mohsen_rezvani@pgs.usb.ac.ir Faculty of Electrical and Computer Engineering, University of Sistan and Baluchestan, Zahedan, Iran , Keshavarz Hengameh keshavarz@ece.usb.ac.ir Faculty of Electrical and Computer Engineering, University of Sistan and Baluchestan, Zahedan, Iran
كليدواژه :
two , way networks , multi , antenna relay , generalrank beamforming , second , order statistics , sum , rate maximization.
عنوان كنفرانس :
بيست و چهارمين كنفرانس مهندسي برق ايران
چكيده فارسي :
In this paper, sum-rate maximization is investigated in a two-way MIMO relay network where a multi-antenna relay node assists two transceivers for exchanging their data. For sum-rate maximization, beamforming weights are designed whereas total transmit power constraint in the multi-antenna relay node is satisfied. Assuming that the second order statistics (SOS) of channel state information (CSI) are only available, we confront with a non-convex optimization problem. Using the semidefinite relaxation (SDR) technique and by help of the bisection search method, the beamforming weights are specified. Simulation results show, in a constant maximum allowable relay total transmit power, increasing the number of antennas of multiantenna relay node increases the maximum sum-rate.
