SEER: spectrum- and energy-efficient routing protocol for cognitive radio ad hoc networks

Cognitive radio ad hoc networks (CRAHNs) were developed to improve the utilization ratio of licensed spectrum. Since spectrum opportunities for users are varied over time and location, enhancing the spectrum effectiveness is a goal and also a challenge for CRAHNs. Besides, due to the energy limitati...

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Bibliographic Details
Published inWireless networks Vol. 21; no. 7; pp. 2357 - 2368
Main Authors Hou, L., Yeung, K. H., Wong, K. Y.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.10.2015
Springer Nature B.V
Subjects
Ad hoc networks
Analysis
Cognitive radio
Communications Engineering
Computer Communication Networks
Computer networks
Cost engineering
Devices
Electrical Engineering
Energy consumption
Energy efficiency
Energy management
Engineering
IT in Business
Networks
Protocol
Routing
Routing (telecommunications)
Spectrum allocation
Studies
Wireless networks
Utility maximization
Ad hoc networks
Cognitive radio (CR)
Energy-efficient routing
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Summary:Cognitive radio ad hoc networks (CRAHNs) were developed to improve the utilization ratio of licensed spectrum. Since spectrum opportunities for users are varied over time and location, enhancing the spectrum effectiveness is a goal and also a challenge for CRAHNs. Besides, due to the energy limitation of the devices in CRAHNs, energy efficiency is another goal to be achieved. Therefore, the objective of this paper is to design a spectrum- and energy-efficient routing (SEER) protocol for CRAHNs, which improves transmission efficiency and balances energy consumption. The design of the protocol uses the techniques of expected transmission power, expected residual lifetime and utility indifference curves. The protocol will select the optimal route from all candidate paths. We present a performance comparison with two existing protocols for CARHNs: the minimum total transmission power (MTTP) and the min–max battery cost (MMBC) protocols. Simulation results show that SEER can reduce energy consumption by almost 40 % than that of MMBC, and increase network lifetime by almost 200 % than that of MTTP. Besides, SEER can improve the network throughput by at least 50 % and 150 % than that of MTTP and MMBC respectively.
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ISSN:1022-0038
1572-8196
DOI:10.1007/s11276-015-0906-3