Haijun Geng¹, Qidong Zhang¹, Jiangyuan Yao^2,*, Wei Wang¹, Zikun Jin¹, Han Zhang³, Yangyang Zhang⁴

CMC-Computers, Materials & Continua, Vol.68, No.2, pp. 2029-2039, 2021, DOI:10.32604/cmc.2021.016368

Abstract A reduction in network energy consumption and the establishment of green networks have become key scientific problems in academic and industrial research. Existing energy efficiency schemes are based on a known traffic matrix, and acquiring a real-time traffic matrix in current complex networks is difficult. Therefore, this research investigates how to reduce network energy consumption without a real-time traffic matrix. In particular, this paper proposes an intra-domain energy-efficient routing scheme based on multipath routing. It analyzes the relationship between routing availability and energy-efficient routing and integrates the two mechanisms to satisfy the requirements of availability and energy efficiency. The main… More >

Haijun Geng^1,2,*, Han Zhang³, Yangyang Zhang⁴

CMC-Computers, Materials & Continua, Vol.66, No.2, pp. 1733-1744, 2021, DOI:10.32604/cmc.2020.013355

Abstract With an increasing urgent demand for fast recovery routing mechanisms in large-scale networks, minimizing network disruption caused by network failure has become critical. However, a large number of relevant studies have shown that network failures occur on the Internet inevitably and frequently. The current routing protocols deployed on the Internet adopt the reconvergence mechanism to cope with network failures. During the reconvergence process, the packets may be lost because of inconsistent routing information, which reduces the network’s availability greatly and affects the Internet service provider’s (ISP’s) service quality and reputation seriously. Therefore, improving network availability has become an urgent problem.… More >