Abstract
<p class="0abstract">The mobile IP communication protocol is a flexible system for mobile connection that is designed to allow the device to be moved between networks while maintaining a permanent IP address. IP datagrams using mobile IP can be routed to a specific mobile station (MS) regardless of its current internet location. However, to facilitate such routable characteristics, the communication with an MS that is visiting a foreign network is intermediate with communication between the home agent (HA) and the foreign agent (FA) which increase the total delay and harms the communication performance, especially when the MS continuously moves from a network to another. Accordingly, to handle the delay issue, this paper proposes a new approach for mobile IP direct routing, based on the “follow-me” principle. The proposed approach depends on sending a new temporary care-of-address (CoA) for the previously visited network as the MS moves to another to keep a reliable tracking–like process with the HA. Accordingly, the agents of all the visited networks play the same principles as the HA role whenever the MS moves from a network to another. The proposed approach influences the delay and the speed of the delivery of internet packets. The simulation showed that the proposed method decreases the delay by up to 50% compared to the direct routing approach. </p>
Highlights
Mobile IP technology has been developed to ensure that a user of any mobile device can move from one network to another while maintaining a permanent IP address [1]
The proposed mechanism minimizes the communication with the home agent (HA), as the correspondent refers to the HA only if the transmission is failed
The foreign agent (FA) will have less overhead as the mobile station (MS) is responsible for acquiring the CoA once
Summary
In the absence of FA in the host network, the mobile device has to take over the responsibility of advertising and to address itself In this case, the FA is usually apprehended as a router that offers a routing service and operates within the network that may be visited by various MSs [4]. Two approaches are used to facilitate the mobile IP routing process; these are direct and indirect These routing approaches showed robust features in routing the IP datagrams from a correspondent (CN) and MS, yet, each of which has its scalability limitations with routing via the anchor point. This limitation affects the performance of the network in general in terms of delay and transmission rate.
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