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INFOCOM
2012
IEEE
11 years 7 months ago
Approximately optimal adaptive learning in opportunistic spectrum access
—In this paper we develop an adaptive learning algorithm which is approximately optimal for an opportunistic spectrum access (OSA) problem with polynomial complexity. In this OSA...
Cem Tekin, Mingyan Liu
TON
2012
11 years 7 months ago
Opportunistic Spectrum Access in Multiple-Primary-User Environments Under the Packet Collision Constraint
—Cognitive Radio (CR) technology has great potential to alleviate spectrum scarcity in wireless communications. It allows secondary users (SUs) to opportunistically access spectr...
Eric Jung, Xin Liu
CORR
2010
Springer
171views Education» more  CORR 2010»
12 years 11 months ago
Online Learning in Opportunistic Spectrum Access: A Restless Bandit Approach
We consider an opportunistic spectrum access (OSA) problem where the time-varying condition of each channel (e.g., as a result of random fading or certain primary users' activ...
Cem Tekin, Mingyan Liu
INFOCOM
2010
IEEE
13 years 3 months ago
Truthful Least-Priced-Path Routing in Opportunistic Spectrum Access Networks
We study the problem of finding the least-priced path (LPP) between a source and a destination in opportunistic spectrum access (OSA) networks. This problem is motivated by econo...
Tao Shu, Marwan Krunz
TMC
2011
137views more  TMC 2011»
12 years 11 months ago
Cognitive Medium Access: Exploration, Exploitation, and Competition
— This paper establishes the equivalence between cognitive medium access and the competitive multi-armed bandit problem. First, the scenario in which a single cognitive user wish...
Lifeng Lai, Hesham El Gamal, Hai Jiang, H. Vincent...