Reliable Multipath Flow for Link Failure Recovery in 5G Networks Using SDN Paradigm

Abstract

In modern networks and cloud evolution, as new nodes to internetwork growing rapidly and use of gaming and video streaming over the network require high availability with very small latency rate. 5G networks provides much
faster services than 4G but link failure occurrence can affect the quality of service. In 5G networks environmental
factors also affect the efficiency of wireless signals. To overcome such type of issues, base stations are placed in
distributed manner around urban areaswhen decision is required for the placement. However, in some scenarios
we can have few similarities, as in general, highways are same. In existed systems signals distribution is performed
homogenously, so it will be generating issues like fractal and environmental. It will be cause of great economic
loss. However, being an emerging network paradigm, Software defined Network (SDN) is easy to manage due to
logical separation of control plane and data plane. SDN supports numerous advantages, one of them is link robustness to avoid service unavailability. To cope with network link failures there are many mechanisms existed
like proactive and reactive mechanisms, but these mechanisms calculate multiple paths and stored in flow tables
without considering reliability of link. Therefore, it will be cause of high latency rate due to calculation of many
multiple paths and increased traffic overhead too. To overcome these issues, we proposed a new approach in which
multipath numbers depend on reliability of primary path. Number of alternative paths decreased as reliability of
link increased it leads to less time required to calculate alternative path. In addition, traffic overhead decreases as
compared to existing approaches. Secondly, we also integrate the shortest distance factor with reliability factor,
and we get better results than existing approaches. Our proposed system will be helpful in increasing the availability of services in 5G network due to low latency rate and small traffic overhead required in link failure recovery