6533b837fe1ef96bd12a339b
RESEARCH PRODUCT
Non-cooperative power allocation game with imperfect sensing information for cognitive radio
Baltasar Beferull-lozanoXiaoge Huangsubject
Computer Science::Computer Science and Game TheoryMathematical optimizationOptimization problemChannel allocation schemesComputer science020206 networking & telecommunications020302 automobile design & engineeringThroughput02 engineering and technologyTransmitter power outputsymbols.namesakeCognitive radio0203 mechanical engineeringNash equilibriumVariational inequality0202 electrical engineering electronic engineering information engineeringsymbolsGame theoryThroughput (business)description
In this paper, we consider a sensing-based spectrum sharing scenario and present an efficient decentralized algorithm to maximize the total throughput of the cognitive radio users by optimizing jointly both the detection operation and the power allocation, taking into account the influence of the sensing accuracy. This optimization problem can be formulated as a distributed non-cooperative power allocation game, which can be solved by using an alternating direction optimization method. The transmit power budget of the cognitive radio users and the constraint related to the rate-loss of the primary user due to the interference are considered in the scheme. Finally, we use variational inequality theory in order to find the existence and uniqueness of the Nash equilibrium for our proposed distributed non-cooperative game.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-06-01 |