中国邮电高校学报(英文) ›› 2011, Vol. 18 ›› Issue (5): 22-29.doi: 10.1016/S1005-8885(10)60098-2

• Wireless • 上一篇    下一篇

Quality of service aware admission control in cognitive device-to-device network

傅子僖,胡春静,彭涛,卢前溪,王文博   

  1. Wireless Signal Processing and Network Lab, Key Laboratory of Universal Wireless Communication Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 收稿日期:2011-01-21 修回日期:2011-06-07 出版日期:2011-10-31 发布日期:2011-10-13
  • 通讯作者: 傅子僖 E-mail:fuzixi09@gmail.com
  • 基金资助:

    This work was sponsored by Renesas, the National Natural Science Foundation of China (60572120, 60602058), the National Basic Research Program of China (2009CB320400), the Joint Funds of NSFC-Guangdong (U1035001), and the Chinese Major Science and Technology Projects (2009ZX03007-004).

cognitive radio, QoS, power control, geometric programming, sorting-based algorithm

FU Zi-xi , HU Chun-jing, PENG Tao, LU Qian-xi, WANG Wen-bo   

  1. Wireless Signal Processing and Network Lab, Key Laboratory of Universal Wireless Communication Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2011-01-21 Revised:2011-06-07 Online:2011-10-31 Published:2011-10-13
  • Contact: FU Zi-xi E-mail:fuzixi09@gmail.com
  • Supported by:

    This work was sponsored by Renesas, the National Natural Science Foundation of China (60572120, 60602058), the National Basic Research Program of China (2009CB320400), the Joint Funds of NSFC-Guangdong (U1035001), and the Chinese Major Science and Technology Projects (2009ZX03007-004).

摘要:

A hybrid system of cellular mode and device-to-device (D2D) mode is considered in this paper, where the cellular resource is reused by the D2D transmission. With the objective of capacity maximization, the power optimization of D2D sub-system is considered, taking into account quality of service (QoS) requirement. The power optimization problem is divided into two stages: The first stage is the admission control scheme design based on the QoS requirement of D2D users, and the second is power allocation to maximize aggregate throughput of admissible D2D users. For the D2D admission control problem, a heuristic sorting-based algorithm is proposed to index the admissible D2D links, where gain to Interference ratio (GIR) sorting criterion is used. Applying an approximate form of Shannon capacity, the power allocation problem can be solved by convex optimization and geometric programming tools efficiently. Based on the theoretical analysis, a practical algorithm is proposed. The precision can reach a trade-off between complexity and performance. Numerical simulation results confirm that combining with GIR sorting method, the proposed scheme can significantly improve the D2D system's capacity and fairness.

关键词:

cognitive radio, QoS, power control, geometric programming, sorting-based algorithm

Abstract:

A hybrid system of cellular mode and device-to-device (D2D) mode is considered in this paper, where the cellular resource is reused by the D2D transmission. With the objective of capacity maximization, the power optimization of D2D sub-system is considered, taking into account quality of service (QoS) requirement. The power optimization problem is divided into two stages: The first stage is the admission control scheme design based on the QoS requirement of D2D users, and the second is power allocation to maximize aggregate throughput of admissible D2D users. For the D2D admission control problem, a heuristic sorting-based algorithm is proposed to index the admissible D2D links, where gain to Interference ratio (GIR) sorting criterion is used. Applying an approximate form of Shannon capacity, the power allocation problem can be solved by convex optimization and geometric programming tools efficiently. Based on the theoretical analysis, a practical algorithm is proposed. The precision can reach a trade-off between complexity and performance. Numerical simulation results confirm that combining with GIR sorting method, the proposed scheme can significantly improve the D2D system's capacity and fairness.

Key words:

cognitive radio, QoS, power control, geometric programming, sorting-based algorithm