Journal
CHINESE JOURNAL OF ELECTRONICS
Volume 26, Issue 4, Pages 842-848Publisher
TECHNOLOGY EXCHANGE LIMITED HONG KONG
DOI: 10.1049/cje.2017.05.004
Keywords
Internet of things (IoT); Heterogeneous network; Joint network selection policy; Signal to interference plus noise ratio (SINR); Delay constraint
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Funding
- Natural Science Basic Research Plan in Shaanxi Province of China [2016JQ6074, 2016JQ6067]
- Fundamental Research Funds for the Central Universities [310824161008]
- Young Talent fund of University Association for Science and Technology in Shaanxi, China
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In the heterogeneous Internet of things (IoT), the Signal to interference plus noise ratio (SINR) and delay constraint are two important factors that influence the throughput of IoT and the performance of users. Until recently, most network selection policy researches were based on either the Shannon theory or the signal strength, while the combined influence of the delay constraint and the SINR, which has a significant impact on resource utilization, is hardly considered. We therefore propose an SINR driven joint network selection policy, which incorporates the delay constraint and the signal strength into the SINR. This policy permits IoT users to access the network with the maximum of SINR from all the available networks under the delay and signal strength constraints. Theoretical analysis and the simulation results show that the joint network selection policy can obtain the higher throughput of IoT and average SINR comparing with other polices.
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