Power control for cognitive radio ad hoc networks

Lijun Qian, Xiangfang Li, John Attia, Zoran Gajic

Research output: Chapter in Book/Report/Conference proceedingConference contribution

81 Scopus citations

Abstract

While FCC proposes spectrum sharing between a legacy TV system and a cognitive radio network to increase spectrum utilisation, one of the major concerns is that the interference from the cognitive radio network should not violate the QoS requirements of the primary users. In this paper, we consider the scenario where the cognitive radio network is formed by secondary users with low power personal/portable devices and when both systems are operating simultaneously. A power control problem is formulated for the cognitive radio network to maximize the energy efficiency of the secondary users and guarantee the QoS of both the primary users and the secondary users. The feasibility condition of the problem is derived and both centralized and distributed solutions are provided. Because the co-channel interference are from heterogeneous systems, a joint power control and admission control procedure is suggested such that the priority of the primary users is always ensured. The simulation results demonstrate the effectiveness of the proposed schemes.

Original languageEnglish (US)
Title of host publicationLANMAN 2007 - Proceedings of the 2007 15th IEEE Workshop on Local and Metropolitan Area Networks
Pages7-12
Number of pages6
DOIs
StatePublished - 2007
EventLANMAN 2007 - 2007 15th IEEE Workshop on Local and Metropolitan Area Networks - Princeton, NJ, United States
Duration: Jun 10 2007Jun 13 2007

Publication series

NameLANMAN 2007 - Proceedings of the 2007 15th IEEE Workshop on Local and Metropolitan Area Networks

Other

OtherLANMAN 2007 - 2007 15th IEEE Workshop on Local and Metropolitan Area Networks
Country/TerritoryUnited States
CityPrinceton, NJ
Period6/10/076/13/07

All Science Journal Classification (ASJC) codes

  • Communication
  • Computer Networks and Communications

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