Abstract
Problem statement: The communications domain has utilized the implementation of protocols for a wide spectrum of applications. This encompasses Medium Access Control (MAC) protocols. MAC protocols have been extensively researched from several angles. This encompasses the implementation in the area of Wave Division Multiplexing (WDM) networks and Mobile Adhoc Networks (MANET). The relevance of intelligence in sustaining the pre-requisites for dynamic reconfiguration has gained an integral attention in MANET. Approach: The implementation of Token Ring in MANET can be correlated to its complementary implementation in IP networks. In this paper, the limitation of Token Ring algorithm for IP networks in the context of intelligent processing has been researched extensively. An enhanced Token Ring protocol governed by intelligent processing has been implemented in this paper. The core of the new protocol is based on the circulation mechanism of the token. As opposed to the traditional circulatory mechanism, a software agent is designed to become an intelligent circulatory agent is this research. The developed software agent is utilized to implement prioritized token access subject to the traffic type. Each station is coupled with a software agent who cohesively collaborates to assign the token. Results: The proposed agent and the enhanced Token Ring implementation have been extensively verified through simulation experiments. A complete circulation of the ring is defined upon all nodes being visited at least once. Discrete-event simulation models were developed and deployed for the purpose of performance analysis. The results acquired validated the improved results of the new software agent based implementation. The performance metrics studied were average delay and average buffer utilization. Conclusion: The proposed algorithm has enabled to derive an ideal balance between the complexity of intelligent processing and the versatility of managing the token ring.
Highlights
In token-passing ring local area networks, the shared transmission medium is closed and it has a formation of loop
Token ring protocol has been an active research area in both wired and wireless networks (Malpani et al, 2004). Much of these researches have focused on the design of routing and Medium Access Control protocols (MAC), since efficiency of these protocols have a direct and significant impact on the performance
MAC protocols provide access arbitration for the network nodes to the transmission medium
Summary
In token-passing ring local area networks, the shared transmission medium is closed and it has a formation of loop. This research developed an agent based token ring protocol that utilizes agent intelligence to provide an efficient routing mechanism to enhance and increase the network performance. Many algorithms have been introduced in order to utilize the network topology information and changed the token circulation mechanism, with ensuring the total order of the message delivery among the nodes. A node removes a circulating token, modifies it into a data packet and places it again on the network for transmission to its destination. The station either releases the token immediately or after the arrival of all the frames it transmitted Using this scheme, a station on an station ring may have to wait as long as an n × THT interval to receive a token.
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