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Transmission Power Control Aware Routing in Cognitive Radio Ad Hoc Networks

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Abstract

Abstract—Cognitive radio technology has drawn much attention since it is a promising candidate to efficiently utilize the scarce radio resources. However, cognitive radio introduces new challenges in the protocol stacks in wireless networks. This paper proposes a routing protocol for Cognitive Radio Ad Hoc Networks (CRAHNs), called Transmission Power Control aware AODV (TPC-AODV). TPC-AODV is based on Ad hoc On Demand Distance Vector (AODV) routing protocol. The main objectives of TPC-AODV are to avoid interruption of primary users’ communication and to support basic Quality of Service for secondary users. TPC-AODV takes inputs from both secondary users’ application requirements and the channel condition after spectrum sensing. These inputs enable secondary users’ communication with specific transmission power on the selected channel. Our simulation results show that TPC-AODV improves network performance in terms of throughput and delay compared to AODV in CRAHNs.

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Acknowledgments

The authors would like to thank the editor and anonymous referees for their helpful comments on this paper. Correspondence should be addressed to Dr. Sangman Moh (smmoh@chosun.ac.kr).

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Authors and Affiliations

  1. Department of Computer Engineering, Chosun University, Gwangju, South Korea

    Shelly Salim, Sangman Moh & Ilyong Chung

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  1. Shelly Salim
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  2. Sangman Moh
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  3. Ilyong Chung
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Correspondence to Sangman Moh.

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Salim, S., Moh, S. & Chung, I. Transmission Power Control Aware Routing in Cognitive Radio Ad Hoc Networks. Wireless Pers Commun 71, 2713–2724 (2013). https://doi.org/10.1007/s11277-012-0966-y

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