Resource Allocation for CoMP in Cellular Networks With Base Station Sleeping

Ramamoorthi, Yoghitha and Kumar, Abhinav (2018) Resource Allocation for CoMP in Cellular Networks With Base Station Sleeping. IEEE Access, 6. pp. 12620-12633. ISSN 2169-3536

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Base station sleeping (BSS) can result in significant reduction in energy consumption of cellular networks during low traffic conditions. We show that the coverage loss due to BSS can be compensated via coordinated multi-point (CoMP) -based transmission in a cluster of base stations. For a BSS with CoMP-based system, we propose various BSS patterns to achieve suitable trade-offs between energy savings and throughput. We formulate the CoMP resource allocation and α-Fair user scheduling as a joint optimization problem. We derive the optimal time fraction and user scheduling for this problem and use it to formulate a simplified BSS with CoMP optimization problem. A heuristic that solves this problem is presented. Through extensive simulations, we show that suitable trade-offs among energy, coverage, and rate can be achieved by appropriately selecting the BSS pattern, CoMP cluster, and rate threshold.

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Item Type: Article
Uncontrolled Keywords: α-Fair throughput, base station sleeping (BSS), cellular networks, coordinated multi-point (CoMP) transmission, downlink, energy
Subjects: Electrical Engineering
Divisions: Department of Electrical Engineering
Depositing User: Team Library
Date Deposited: 19 Apr 2018 10:42
Last Modified: 19 Apr 2018 10:42
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