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In this work, we propose interference shaping constraints as an alternative to IT-based approaches.
In this work, we propose interference cancellation techniques and a multi-relay selection algorithm based on greedy methods for the uplink of cooperative direct-sequence code-division multiple access (DS-CDMA) systems.
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By identifying interference, Min et al. [21] propose interference-limited areas of D2D pairs to prohibit them from reusing resources with CUEs if the interference at D2D receivers is greater than a threshold.
In the next section, we investigate the accuracy of the proposed interference modeling expressed by Equation 48.
If the proposed interference mitigation technique is employed, we then have according to (A.6) the following expression: (15).
Finally, numerical evaluation is used to test the applicability of the proposed algorithm, and system level simulation results demonstrate the effectiveness of the proposed interference management scheme.
The dashed curves in these figures illustrate the SINR performance when cells operate separately while the solid curves denote the situation when proposed interference mitigation is applied.
The Small Cell Forum (formerly FemtoForum) proposes interference analysis based on pathloss predictions and case study simulations realized at system-level, for both UMTS [4] and OFDMA [5].
The authors in [15] proposed interference mitigation strategies that adjusts the maximum transmit power of femtocell users by open-loop or closed-loop power control to suppress the cross-tier interference at a macrocell BS.
The system model and the proposed architecture are described in Section 2. The femtocell clustering concept based on the feedback request is presented in Section 3. Section 4 is devoted to the proposed interference management.
In this section, we provide the capacity expressions for different transmission techniques including proposed interference alignment technique and describe the different strategies for determining the alignment vector v. Let us consider the following input-output relation for a MIMO system.
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