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The Multimedia based application services have been getting attention in recent years in various fields. These services require a stringent delay resistant protocol in order to provide the best Quality of Service to end users. Existing protocols are predominantly designed using load balancing, tree, multi-tree and mesh based mechanisms. These mechanisms suffer in the presence of channel noise and...
Requirement for high bandwidth internet traffic is growing rapidly now-a-days. Utilization of the available resources becomes troublesome due to rise in the number of users. So it is important to provide the resources efficiently. To solve the problem of resource provisioning, many developments have been made by the researchers. During working hours, the scheduled traffic is huge and sluggish during...
Requirement for high bandwidth traffic has been increasing very rapidly. Efficient and effective provisioning of resources is very important now-a-days. Due to the increase in number of users, providing sufficient bandwidth has become a difficult task for the service providers and network operators. Researchers have developed many techniques to resolve this issue but they have not reached to full...
The drastic growth in internet services has led to growth in data sharing between the users. This has led to need for powerful and large data centers, where huge number of storage and computing servers are interconnected. According to the reports, annual data center traffic is growing at a very high growth rate of 25%, of which the major contribution is due to the servers within the data centers,...
In this paper, a health care system is described for rural areas considering a small village using hybrid network i.e. which operates both in ADHOC and cellular region. In this system, a small village is considered in which sensors are attached to people, the whole area is divided into clusters. The sensors considered for this system can operate in both ADHOC and GSM region. In each cluster, a sensor...
In this paper, an efficient routing protocol for patient monitoring system in rural areas was proposed using wireless sensor network (WSN) so that the patients can be treated within less time. In this system, a village with GSM network is considered and the people in that village are continuously monitored using AMON sensor, an advanced medical monitoring and alert system. All the AMON's work in ADHOC...
The paper describes an Energy — Efficient Resource Allocation protocol for Wavelength-Routed All-Optical WDM Networks. Protocol selects efficient and low power consumption optimal primary and backup paths. The path selection will be done by Central Management System (CMS). The selection will be by two methods, i.e., the path with less number of free wavelengths will not be considered for selection...
In this paper, we present the characterization of the Ring oscillator for submicron technology in terms of the first order design equations of the MOSFETs, and we arrive at the extent upto which the short channel effects influence the oscillating frequency. In addition, a solution is suggested to reduce the duration of metastability upto 50%. The Ring oscillator is designed from 3-stage till 15-stage,...
In this work, an efficient channel utilization scheme based on the Distributed Dynamic Channel Assignment (DDCA) is proposed. It can handle three types of constraints Adjacent Channel Constraint (ACC), Co-Channel Constraint (CCC), Co- Site Constraint (CSC) simultaneously while assigning the channel. Previous methods like Dynamic Channel Selection and Reassignment (DCSR) scheme employs reassignment...
In cellular networks Device to Device (D2D) communication is used to improve the resource utilization and the throughput. SNR Based Master-Slave Dynamic D2D Communication Algorithm (SMSDCA) is proposed to improve the resource utilization of the cellular network and improved Quality of Service (QoS). It is achieved by allocating some User Equipment (UE) as master in that cluster based on SNR and energy,...
Existing methodologies in WDM networks, generally uses either lightpath distance or network congestion to identify optimal and backup lightpaths. In our paper, we have designed an efficient alternate RWA protocol (EARP) which considers both congestion and route distance so as to improve the network performance. On arrival of a request the source node sends control signals through all the paths to...
In this paper we present the design of an Advanced Centralized RWA Protocol (ACRP) in which the cost of a lightpath is computed based on its number of available free wavelengths and number of wavelength conversions. Centralized Management System (CMS I) assigns optimal primary and backup lightpaths. CMS II updates the optimal primary and backup lightpaths as and when the number of free wavelengths...
Balancing the load among multiple path leads to the degradation in the all-optical WDM networks. It is always desirable to deliver the entire load on a single optimal path depending upon the current network load status. This paper employs the use of ant colony optimization (ACO) for routing and wavelength assignment (RWA) problem of all-optical WDM networks along with survivability. Our algorithm...
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