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Journal of Communication Engineering
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Volume Volume 7 (2018)
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Khalili, A., Akhlaghi, S. (2018). Power Control and Scheduling For Low SNR Region in the Uplink of Two Cell Networks. Journal of Communication Engineering, 7(1), 34-48. doi: 10.22070/jce.2018.2810.1066
Ata Khalili; Soroush Akhlaghi. "Power Control and Scheduling For Low SNR Region in the Uplink of Two Cell Networks". Journal of Communication Engineering, 7, 1, 2018, 34-48. doi: 10.22070/jce.2018.2810.1066
Khalili, A., Akhlaghi, S. (2018). 'Power Control and Scheduling For Low SNR Region in the Uplink of Two Cell Networks', Journal of Communication Engineering, 7(1), pp. 34-48. doi: 10.22070/jce.2018.2810.1066
Khalili, A., Akhlaghi, S. Power Control and Scheduling For Low SNR Region in the Uplink of Two Cell Networks. Journal of Communication Engineering, 2018; 7(1): 34-48. doi: 10.22070/jce.2018.2810.1066

Power Control and Scheduling For Low SNR Region in the Uplink of Two Cell Networks

Article 4, Volume 7, Issue 1, Winter and Spring 2018, Page 34-48  XML PDF (138 K)
Document Type: Research Paper
DOI: 10.22070/jce.2018.2810.1066
Authors
Ata Khalili 1; Soroush Akhlaghi2
1Electrical Engineering Department, Shahed University, Tehran, Iran
2Shahed University
Abstract
In this paper we investigate the sub-channel assignment and power control to maximize the total sum rate in the uplink of two-cell network. It is assumed that there are some sub-channels in each cell which should be allocated among some users. Also, each user is subjected to a power constraint.
The underlying problem is a non-convex mixed integer non-linear optimization problem which does not have a trivial solution. To solve the problem, having fixed the consumed power of each user, and assuming low co-channel interference region, the sub-channel allocation problem is reformulated into a more mathematically tractable problem which is shown it can be tackled through the so-called Hungarian algorithm.
Then, the consumed power of each user is reformulated as a quadratic fractional problem which can be numerically derived. Numerical results demonstrate the superiority of the proposed method in low SNR region as compared to existing works addressed in the literature.
Keywords
Sub-Channel assignment; Power control; Mixed Integer Non Linear Problem; Hungarian algorithm
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