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- W2023933382 abstract "In this paper, we consider the joint subchannel and power allocation problem in both the uplink and the downlink for two-tier networks comprising spectrum-sharing macrocells and femtocells. A joint subchannel and power allocation scheme for co-channel femtocells is proposed, aiming to maximize the capacity for delay-tolerant users subject to delay-sensitive users' quality of service and interference constraints imposed by macrocells. The joint subchannel and power allocation problem is modeled as an mixed integer programming problem, then transformed into a convex optimization problem by relaxing subchannel sharing, and finally solved by a dual decomposition approach. The effectiveness of the proposed approach is verified by simulations and compared with existing scheme." @default.
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- W2023933382 date "2012-12-01" @default.
- W2023933382 modified "2023-10-14" @default.
- W2023933382 title "Joint subchannel and power allocation in interference-limited OFDMA femtocells with heterogeneous QoS guarantee" @default.
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- W2023933382 doi "https://doi.org/10.1109/glocom.2012.6503839" @default.
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