Abstract
<p class="0abstract">Internetworking of different types of networks is envisaged as one of the primary objectives of the future 5G networks. Integrated Internet-MANET is a heterogeneous networking architecture which is the result of interconnecting wired Internet and wireless MANET. Multiprotocol gateways are used to achieve this interconnection. There are two types of Integrated Internet-MANET architectures, two-tier and three-tier. A combination of two-tier and three tier architectures also exists, called the Hybrid Framework or Hybrid Integrated Internet-MANET. Some of the most important issues common to all Integrated Internet-MANET architecture are: efficient gateway discovery, mobile node registration and gateway load balancing. Adaptive WLB-AODV is an existing protocol which addresses the issues of Gateway load balancing and efficient Gateway discovery. In this paper, an improvement is proposed to Adaptive WLB-AODV, called Adaptive Modified-WLV-AODV by taking into account route latency. The proposed protocol has been implemented in Hybrid Integrated Internet-MANET and has been simulated using network simulation tool ns-2. Based on the simulation results, it is observed that the proposed protocol delivers better performance than the existing protocol in terms of performance metrics end-to-end delay and packet loss ratio. The performance of the proposed protocol is further optimized using a genetic algorithm.</p>
Highlights
The study of Mobile Ad Hoc Network (MANET) has been undertaken extensively by several researchers
In case a mobile node wants to communicate with a wired node which lies outside the MANET and which is connected to the Internet, the MANET routing protocol needs to be modified in order to make it work in a wired-cum-wireless scenario
The working of Modified WLB-AODV works in Integrated Internet-MANET is follows: a Gateway inserts the following information into every Gateway advertisement message (GWADV)
Summary
The study of Mobile Ad Hoc Network (MANET) has been undertaken extensively by several researchers. In case a mobile node wants to communicate with a wired node which lies outside the MANET and which is connected to the Internet, the MANET routing protocol needs to be modified in order to make it work in a wired-cum-wireless scenario. AODV+ [6] is a modified version of AODV MANET routing protocol which works in a wired-cum-wireless networking scenario It addresses issues like Gateway discovery by mobile nodes, mobile node registration with Gateways, addressing, besides implementing the regular AODV routing protocol for routing within the MANET. Gateway discovery is a paramount issue in IIM, since communication between mobile nodes in MANET and wired nodes in Internet is made possible only via Gateways. The methodology which is followed is, first the proposed modified version of WLB-AODV which includes the latency parameter is simulated in ns-2 in Hybrid IIM architecture.
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