Open AccessOperator Profit-Aware Wireless Virtualization for Device-to-Device Communications Underlaying LTE Networks
Author(s) -
Yulun Cheng,
Longxiang Yang,
Hongbo Zhu
Publication year - 2017
Publication title -
ieee access
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.587
H-Index - 127
ISSN - 2169-3536
DOI - 10.1109/access.2017.2715813
Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation
This paper investigates the operator profit from virtual resource allocation in device-to-device (D2D) communications underlaying long-term evolution networks. By utilizing the power-bandwidth product model as the metric of operator cost, the virtual resource allocation is formulated as a binary integer programming to maximize the difference between the sum rate of all the users and the consumed resources. To reduce the complexity, the formulated problem is decomposed to two subproblems, and for each subproblem, a heuristic algorithm is proposed to transfer the complexity of exponent into polynomial. Simulation results show that the proposed scheme is close to the optimal solution with lower complexity. Meanwhile, it also outperforms the benchmark in terms of the total profit, and enables the desired tradeoff between the operator cost and sum rate of both cellular and D2D users.
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