TY - JOUR
ID - 589
TI - Power Control and Scheduling For Low SNR Region in the Uplink of Two Cell Networks
JO - Journal of Communication Engineering
JA - JCE
LA - en
SN - 2322-4088
AU - Khalili, Ata
AU - Akhlaghi, Soroush
AD - Electrical Engineering Department, Shahed University, Tehran, Iran
AD - Shahed University
Y1 - 2018
PY - 2018
VL - 7
IS - 1
SP - 34
EP - 48
KW - Sub-Channel assignment
KW - Power control
KW - Mixed Integer Non Linear Problem
KW - Hungarian algorithm
DO - 10.22070/jce.2018.2810.1066
N2 - 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.
UR - http://jce.shahed.ac.ir/article_589.html
L1 - http://jce.shahed.ac.ir/article_589_a66f7aa738da7c4acdef0dc3f4a5c762.pdf
ER -