Download now Free registration required
In this paper, the authors study the sum rate maximization algorithms with long-term Rate Proportional Fairness (RPF) for downlink Orthogonal Frequency Division Multiple Access (OFDMA). In contrast to the rate-maximization schemes which used short-term RPF in the literature, they propose a weighted channel Signal-to-Noise Ratio (w-SNR) ranking based Selective Multiuser Diversity (SMuD) scheme to achieve long-term RPF for rate maximization. In this approach, they solve the optimal SNR weight factors based on the target RPF, and then use them to implement carrier and power allocation to achieve a long-term target RPF.
- Format: PDF
- Size: 145.88 KB