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Route discovery and maintenance in Mobile Ad-hoc Network (MANET) is a problem of long standing interest. In ad-hoc networks the Ad-hoc on demand Distance Vector (AODV) protocol assumes that discovered route is optimal and transmits data on it for the entire data session, whereas due to dynamic topology nodes change position dynamically, the optimum route may change. Thus, node mobility may give rise...
The paper is devoted to logical implication of MANet's protocols for gateway discovery in IPv6 Wireless Sensor Networks (IPv6-WSN). We implement three approaches in NS-2 simulator and evaluate its performance under the specified field of the networks of gateway discovery. The performance results present the packet delivery ratio and delay of end to end communication networks. The AODV protocol is...
This paper has discussed some of the common mobility models and few uncommon ones and their impact on various networks and routing parameters. In the past, mobility models were rather casually used to evaluate network performance under different routing protocols. Therefore, the network performance will be strongly influenced by the nature of the mobility pattern. The mobility model plays an essential...
The link layer routing protocols 6lowpan ad hoc on-demand distance vector routing (LOAD) and dynamic MANET on-demand for 6lowpan (DYMO-low) are integrated in 6lowpan stack. The stack is less complicated and it support IPv6 enabled packets route for biomedical data. Both routing protocols are modified and developed new approach for patient healthcare monitoring system. Thus, proposed integration method...
This paper presents a new concept of MAC and LOAD protocols for IP based ubiquitous healthcare system. The system used IEEE 802.15.4 standard lowpan with integrated IPv6. For healthcare system we added LOAD (6lowpan Ad-hoc on Demand Distance Vector) and MAC (Medium Access Control) protocols in Harvanpsilas 6lowpan stack. 6lowpan stack has ability to connect the physical environment in real-world applications...
Ad-hoc wireless sensor network allows portable devices to establish communication independent of a central infrastructure within a USN. A lot of sensor nodes can move randomly due to un-centralized infrastructure. But it's faces numerous routing threats which adversely affect the success of important applications and gather information about physical phenomena. The current method is providing more...
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