Distributed power control and random access for spectrum sharing with QoS constraint

Bo Yang, Yanyan Shen, Gang Feng, Chengnian Long, Zhong-Ping Jiang, Xinping Guan

Research output: Contribution to journalArticle

Abstract

Distributed spectrum sharing with minimum quality of service (QoS) requirement and interference temperature (IT) constraint is studied in this paper. This problem can be formulated as a non-convex optimization problem with conflicting constraints. To make solutions to this problem feasible, random access and power control are jointly considered. The challenges in solving this problem arise from the coupling in utility functions, the conflicting constraint sets, and coupled control variables. Moreover, there is no centralized controller or base station in networks to coordinate unlicensed users' transmission and protect active users' QoS under IT constraint. By introducing variable substitution and transformation, we derive a distributed random access and power control algorithm that can achieve global optimal solution to the original problem. Convergence of the algorithm is proven theoretically. Simulation results demonstrate that both QoS guarantee and interference avoidance can be achieved even with channel gain variations.

Original languageEnglish (US)
Pages (from-to)4089-4097
Number of pages9
JournalComputer Communications
Volume31
Issue number17
DOIs
StatePublished - Nov 20 2008

Fingerprint

Power control
Quality of service
Access control
Base stations
Substitution reactions
Temperature
Controllers

Keywords

  • Constrained optimization
  • Dynamic spectrum access
  • Spectrum sharing
  • Wireless communication

ASJC Scopus subject areas

  • Computer Networks and Communications

Cite this

Distributed power control and random access for spectrum sharing with QoS constraint. / Yang, Bo; Shen, Yanyan; Feng, Gang; Long, Chengnian; Jiang, Zhong-Ping; Guan, Xinping.

In: Computer Communications, Vol. 31, No. 17, 20.11.2008, p. 4089-4097.

Research output: Contribution to journalArticle

Yang, Bo ; Shen, Yanyan ; Feng, Gang ; Long, Chengnian ; Jiang, Zhong-Ping ; Guan, Xinping. / Distributed power control and random access for spectrum sharing with QoS constraint. In: Computer Communications. 2008 ; Vol. 31, No. 17. pp. 4089-4097.
@article{d1dcc12d329143d6baf06e55ff221e79,
title = "Distributed power control and random access for spectrum sharing with QoS constraint",
abstract = "Distributed spectrum sharing with minimum quality of service (QoS) requirement and interference temperature (IT) constraint is studied in this paper. This problem can be formulated as a non-convex optimization problem with conflicting constraints. To make solutions to this problem feasible, random access and power control are jointly considered. The challenges in solving this problem arise from the coupling in utility functions, the conflicting constraint sets, and coupled control variables. Moreover, there is no centralized controller or base station in networks to coordinate unlicensed users' transmission and protect active users' QoS under IT constraint. By introducing variable substitution and transformation, we derive a distributed random access and power control algorithm that can achieve global optimal solution to the original problem. Convergence of the algorithm is proven theoretically. Simulation results demonstrate that both QoS guarantee and interference avoidance can be achieved even with channel gain variations.",
keywords = "Constrained optimization, Dynamic spectrum access, Spectrum sharing, Wireless communication",
author = "Bo Yang and Yanyan Shen and Gang Feng and Chengnian Long and Zhong-Ping Jiang and Xinping Guan",
year = "2008",
month = "11",
day = "20",
doi = "10.1016/j.comcom.2008.08.016",
language = "English (US)",
volume = "31",
pages = "4089--4097",
journal = "Computer Communications",
issn = "0140-3664",
publisher = "Elsevier",
number = "17",

}

TY - JOUR

T1 - Distributed power control and random access for spectrum sharing with QoS constraint

AU - Yang, Bo

AU - Shen, Yanyan

AU - Feng, Gang

AU - Long, Chengnian

AU - Jiang, Zhong-Ping

AU - Guan, Xinping

PY - 2008/11/20

Y1 - 2008/11/20

N2 - Distributed spectrum sharing with minimum quality of service (QoS) requirement and interference temperature (IT) constraint is studied in this paper. This problem can be formulated as a non-convex optimization problem with conflicting constraints. To make solutions to this problem feasible, random access and power control are jointly considered. The challenges in solving this problem arise from the coupling in utility functions, the conflicting constraint sets, and coupled control variables. Moreover, there is no centralized controller or base station in networks to coordinate unlicensed users' transmission and protect active users' QoS under IT constraint. By introducing variable substitution and transformation, we derive a distributed random access and power control algorithm that can achieve global optimal solution to the original problem. Convergence of the algorithm is proven theoretically. Simulation results demonstrate that both QoS guarantee and interference avoidance can be achieved even with channel gain variations.

AB - Distributed spectrum sharing with minimum quality of service (QoS) requirement and interference temperature (IT) constraint is studied in this paper. This problem can be formulated as a non-convex optimization problem with conflicting constraints. To make solutions to this problem feasible, random access and power control are jointly considered. The challenges in solving this problem arise from the coupling in utility functions, the conflicting constraint sets, and coupled control variables. Moreover, there is no centralized controller or base station in networks to coordinate unlicensed users' transmission and protect active users' QoS under IT constraint. By introducing variable substitution and transformation, we derive a distributed random access and power control algorithm that can achieve global optimal solution to the original problem. Convergence of the algorithm is proven theoretically. Simulation results demonstrate that both QoS guarantee and interference avoidance can be achieved even with channel gain variations.

KW - Constrained optimization

KW - Dynamic spectrum access

KW - Spectrum sharing

KW - Wireless communication

UR - http://www.scopus.com/inward/record.url?scp=54949102721&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=54949102721&partnerID=8YFLogxK

U2 - 10.1016/j.comcom.2008.08.016

DO - 10.1016/j.comcom.2008.08.016

M3 - Article

AN - SCOPUS:54949102721

VL - 31

SP - 4089

EP - 4097

JO - Computer Communications

JF - Computer Communications

SN - 0140-3664

IS - 17

ER -