A dual-threshold policy for opportunistic spectrum access in fading channels

Xiaodong Peng; Limin Xiao; Xiaofeng Zhong; Shidong Zhou

doi:10.1109/LCOMM.2014.2331281

A dual-threshold policy for opportunistic spectrum access in fading channels

Xiaodong Peng
, Limin Xiao
, Xiaofeng Zhong
, Shidong Zhou

Tsinghua University

Research output: Contribution to journal › Article › peer-review

Abstract

To improve the effective throughput of the secondary user in hierarchical networks, a dual-threshold policy based on channel quality information is proposed. The proposed policy can utilize the transmission opportunities with good channel quality not only in the sensed idle state but also in the sensed busy state of the channel. With this policy, an optimization problem maximizing the effective throughput of the secondary user with an interference constraint for protecting the primary user is formulated, and the optimal channel quality thresholds are derived. Numerical results validate that the effective throughput of the secondary user can be significantly improved by adopting the proposed policy.

Original language	English
Article number	6853353
Pages (from-to)	2229-2232
Number of pages	4
Journal	IEEE Communications Letters
Volume	18
Issue number	12
DOIs	https://doi.org/10.1109/LCOMM.2014.2331281
State	Published - 1 Dec 2014
Externally published	Yes

Keywords

Dual threshold
channel quality information
fading channels
opportunistic spectrum access

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10.1109/LCOMM.2014.2331281

Cite this

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title = "A dual-threshold policy for opportunistic spectrum access in fading channels",

abstract = "To improve the effective throughput of the secondary user in hierarchical networks, a dual-threshold policy based on channel quality information is proposed. The proposed policy can utilize the transmission opportunities with good channel quality not only in the sensed idle state but also in the sensed busy state of the channel. With this policy, an optimization problem maximizing the effective throughput of the secondary user with an interference constraint for protecting the primary user is formulated, and the optimal channel quality thresholds are derived. Numerical results validate that the effective throughput of the secondary user can be significantly improved by adopting the proposed policy.",

keywords = "Dual threshold, channel quality information, fading channels, opportunistic spectrum access",

author = "Xiaodong Peng and Limin Xiao and Xiaofeng Zhong and Shidong Zhou",

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AU - Peng, Xiaodong

AU - Xiao, Limin

AU - Zhong, Xiaofeng

AU - Zhou, Shidong

PY - 2014/12/1

Y1 - 2014/12/1

N2 - To improve the effective throughput of the secondary user in hierarchical networks, a dual-threshold policy based on channel quality information is proposed. The proposed policy can utilize the transmission opportunities with good channel quality not only in the sensed idle state but also in the sensed busy state of the channel. With this policy, an optimization problem maximizing the effective throughput of the secondary user with an interference constraint for protecting the primary user is formulated, and the optimal channel quality thresholds are derived. Numerical results validate that the effective throughput of the secondary user can be significantly improved by adopting the proposed policy.

AB - To improve the effective throughput of the secondary user in hierarchical networks, a dual-threshold policy based on channel quality information is proposed. The proposed policy can utilize the transmission opportunities with good channel quality not only in the sensed idle state but also in the sensed busy state of the channel. With this policy, an optimization problem maximizing the effective throughput of the secondary user with an interference constraint for protecting the primary user is formulated, and the optimal channel quality thresholds are derived. Numerical results validate that the effective throughput of the secondary user can be significantly improved by adopting the proposed policy.

KW - Dual threshold

KW - channel quality information

KW - fading channels

KW - opportunistic spectrum access

UR - https://www.scopus.com/pages/publications/84919469935

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JF - IEEE Communications Letters

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M1 - 6853353

ER -

A dual-threshold policy for opportunistic spectrum access in fading channels

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Keywords

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